International
Tables for
Crystallography
Volume B
Reciprocal space
Edited by U. Shmueli

International Tables for Crystallography (2006). Vol. B. ch. 1.4, p. 114

Section A1.4.2.3.2. Example matrices

S. R. Hallb* and R. W. Grosse-Kunstlevec

A1.4.2.3.2. Example matrices

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The following examples show how the notation expands to Seitz matrices.

The notation [\bar{\it 2}_c^{x}] represents an improper twofold rotation along a and a c/2 translation:[-2{\rm xc}=\pmatrix{-1&0&0&0\cr0&1&0&0\cr0&0&1&{1 \over 2}\cr0&0&0&1}.]

The notation [{\it 3}^*] represents a threefold rotation along a + b + c:[3^*=\pmatrix{0&0&1&0\cr1&0&0&0\cr0&1&0&0\cr0&0&0&1}.]

The notation [{\it 4}_{vw}] represents a fourfold rotation along c (implied) and translation of b/4 and c/4:[4{\rm vw}=\pmatrix{0&-1&0&0\cr1&0&0&{1 \over 4}\cr0&0&1&{1 \over 4}\cr0&0&0&1}.]

The notation 61 2 (0 0 −1) represents a 61 screw along c, a twofold rotation along ab and an origin shift of −c/12. Note that the 61 matrix is unchanged by the shifted origin whereas the 2 matrix is changed by −c/6.[\eqalign{&61\;2\;(0\;0\;{-1})\cr&\quad{}=\pmatrix{1&-1&0&0\cr1&0&0&0\cr0&0&1&{1 \over 6}\cr 0&0&0&1\cr},\pmatrix{0&-1&0&0\cr-1&0&0&0\cr 0&0&-1&#38>;{5 \over 6}\cr0&0&0&1\cr}.\cr}] The change-of-basis vector (0 0 −1) could also be entered as (xyz − 1/12).

The reverse setting of the R-centred lattice (hexagonal axes) is specified using a change-of-basis transformation applied to the standard obverse setting (see Table A1.4.2.2[link]). The obverse Seitz matrices are[\openup3pt{\rm R}\;3=\pmatrix{1&0&0&{1 \over 3}\cr0&1&0&{2 \over 3}\cr0&0&1&{2 \over 3}\cr0&0&0&1\cr},\pmatrix{1&0&0&{2 \over 3}\cr0&1&0&{1 \over 3}\cr0&0&1&{1 \over 3}\cr0&0&0&1\cr},\pmatrix{0&-1&0&0\cr1&-1&0&0\cr0&0&1&0\cr0&0&0&1}.] The reverse-setting Seitz matrices are[\displaylines{{\rm R}\;3\;({\rm -x,-y,z})\hfill\cr\quad= \pmatrix{1&0&0&{1 \over 3}\cr0&1&0&{2 \over 3}\cr0&0&1&{1 \over 3}\cr0&0&0&1\cr},\pmatrix{1&0&0&{2 \over 3}\cr0&1&0&{1 \over 3}\cr0&0&1&{2 \over 3}\cr0&0&0&1\cr},\pmatrix{0&-1&0&0\cr1&-1&0&0\cr0&0&1&0\cr0&0&0&1}.\cr}]

Table A1.4.2.7| top | pdf |
Hall symbols

The first column, n:c, lists the space-group numbers and axis codes separated by a colon. The second column lists the Hermann–Mauguin symbols in computer-entry format. The third column lists the Hall symbols in computer-entry format and the fourth column lists the Hall symbols as described in Tables A1.4.2.2[link]–A1.4.2.6[link] [link] [link] [link][link].

n:cH–M entryHall entryHall symbol
1P 1p 1P 1
2P -1-p 1 [\overline{\rm P}] 1
3:bP 1 2 1p 2yP [2^{\rm y}]
3:cP 1 1 2p 2P 2
3:aP 2 1 1p 2xP [2^{\rm x}]
4:bP 1 21 1p 2ybP [2_{\rm b}^{\rm y}]
4:cP 1 1 21p 2cP [2_{\rm c}]
4:aP 21 1 1p 2xaP [2_{\rm a}^{\rm x}]
5:b1C 1 2 1c 2yC [2^{\rm y}]
5:b2A 1 2 1a 2yA [2^{\rm y}]
5:b3I 1 2 1i 2yI [2^{\rm y}]
5:c1A 1 1 2a 2A 2
5:c2B 1 1 2b 2B 2
5:c3I 1 1 2i 2I 2
5:a1B 2 1 1b 2xB [2^{\rm x}]
5:a2C 2 1 1c 2xC [2^{\rm x}]
5:a3I 2 1 1i 2xI [2^{\rm x}]
6:bP 1 m 1p -2yP [\overline{2}^{\rm y}]
6:cP 1 1 mp -2P [\overline{2}]
6:aP m 1 1p -2xP [\overline{2}^{\rm x}]
7:b1P 1 c 1p -2ycP [\overline{2}_{\rm c}^{\rm y}]
7:b2P 1 n 1p -2yacP [\overline{2}^{\rm y}_{\rm ac}]
7:b3P 1 a 1p -2yaP [\overline{2}_{\rm a}^{\rm y}]
7:c1P 1 1 ap -2aP [\overline{2}_{\rm a}]
7:c2P 1 1 np -2abP [\overline{2}_{\rm ab}]
7:c3P 1 1 bp -2bP [\overline{2}_{\rm b}]
7:a1P b 1 1p -2xbP [\overline{2}_{\rm b}^{\rm x}]
7:a2P n 1 1p -2xbcP [\overline{2}^{\rm x}_{\rm bc}]
7:a3P c 1 1p -2xcP [\overline{2}_{\rm c}^{\rm x}]
8:b1C 1 m 1c -2yC [\overline{2}^{\rm y}]
8:b2A 1 m 1a -2yA [\overline{2}^{\rm y}]
8:b3I 1 m 1i -2yI [\overline{2}^{\rm y}]
8:c1A 1 1 ma -2A [\overline{2}]
8:c2B 1 1 mb -2B [\overline{2}]
8:c3I 1 1 mi -2I [\overline{2}]
8:a1B m 1 1b -2xB [\overline{2}^{\rm x}]
8:a2C m 1 1c -2xC [\overline{2}^{\rm x}]
8:a3I m 1 1i -2xI [\overline{2}^{\rm x}]
9:b1C 1 c 1c -2ycC [\overline{2}_{\rm c}^{\rm y}]
9:b2A 1 n 1a -2yabA [\overline{2}^{\rm y}_{\rm ab}]
9:b3I 1 a 1i -2yaI [\overline{2}_{\rm a}^{\rm y}]
9:-b1A 1 a 1a -2yaA [\overline{2}_{\rm a}^{\rm y}]
9:-b2C 1 n 1c -2yacC [\overline{2}^{\rm y}_{\rm ac}]
9:-b3I 1 c 1i -2ycI [\overline{2}_{\rm c}^{\rm y}]
9:c1A 1 1 aa -2aA [\overline{2}_{\rm a}]
9:c2B 1 1 nb -2abB [\overline{2}_{\rm ab}]
9:c3I 1 1 bi -2bI [\overline{2}_{\rm b}]
9:-c1B 1 1 bb -2bB [\overline{2}_{\rm b}]
9:-c2A 1 1 na -2abA [\overline{2}_{\rm ab}]
9:-c3I 1 1 ai -2aI [\overline{2}_{\rm a}]
9:a1B b 1 1b -2xbB [\overline{2}_{\rm b}^{\rm x}]
9:a2C n 1 1c -2xacC [\overline{2}^{\rm x}_{\rm ac}]
9:a3I c 1 1i -2xcI [\overline{2}_{\rm c}^{\rm x}]
9:-a1C c 1 1c -2xcC [\overline{2}_{\rm c}^{\rm x}]
9:-a2 B n 1 1 b -2xab B [\overline{2}^{\rm x}_{\rm ab}]
9:-a3I b 1 1i -2xbI [\overline{2}_{\rm b}^{\rm x}]
10:bP 1 2/m 1-p 2y [\overline{\rm P}] [2^{\rm y}]
10:cP 1 1 2/m-p 2 [\overline{\rm P}] 2
10:aP 2/m 1 1-p 2x [\overline{\rm P}] [2^{\rm x}]
11:bP 1 21/m 1-p 2yb [\overline{\rm P}] [2_{\rm b}^{\rm y}]
11:cP 1 1 21/m-p 2c [\overline{\rm P}] [2_{\rm c}]
11:aP 21/m 1 1-p 2xa [\overline{\rm P}] [2_{\rm a}^{\rm x}]
12:b1C 1 2/m 1-c 2y [\overline{\rm C}] [2^{\rm y}]
12:b2A 1 2/m 1-a 2y [\overline{\rm A}] [2^{\rm y}]
12:b3I 1 2/m 1-i 2y [\overline{\rm I}] [2^{\rm y}]
12:c1A 1 1 2/m-a 2 [\overline{\rm A}] 2
12:c2B 1 1 2/m-b 2 [\overline{\rm B}] 2
12:c3I 1 1 2/m-i 2 [\overline{\rm I}] 2
12:a1B 2/m 1 1-b 2x [\overline{\rm B}] [2^{\rm x}]
12:a2C 2/m 1 1-c 2x [\overline{\rm C}] [2^{\rm x}]
12:a3I 2/m 1 1-i 2x [\overline{\rm I}] [2^{\rm x}]
13:b1P 1 2/c 1-p 2yc [\overline{\rm P}] [2_{\rm c}^{\rm y}]
13:b2P 1 2/n 1-p 2yac [\overline{\rm P}] [2^{\rm y}_{\rm ac}]
13:b3P 1 2/a 1-p 2ya [\overline{\rm P}] [2^{\rm y}_{\rm a}]
13:c1P 1 1 2/a-p 2a [\overline{\rm P}] [2_{\rm a}]
13:c2P 1 1 2/n-p 2ab [\overline{\rm P}] [2_{\rm ab}]
13:c3P 1 1 2/b-p 2b [\overline{\rm P}] [2_{\rm b}]
13:a1P 2/b 1 1-p 2xb [\overline{\rm P}] [2_{\rm b}^{\rm x}]
13:a2P 2/n 1 1-p 2xbc [\overline{\rm P}] [2^{\rm x}_{\rm bc}]
13:a3P 2/c 1 1-p 2xc [\overline{\rm P}] [2^{\rm x}_{\rm c}]
14:b1P 1 21/c 1-p 2ybc [\overline{\rm P}] [2^{\rm y}_{\rm bc}]
14:b2P 1 21/n 1-p 2yn [\overline{\rm P}] [2^{\rm y}_{\rm n}]
14:b3P 1 21/a 1-p 2yab [\overline{\rm P}] [2^{\rm y}_{\rm ab}]
14:c1P 1 1 21/a-p 2ac [\overline{\rm P}] [2_{\rm ac}]
14:c2P 1 1 21/n-p 2n [\overline{\rm P}] [2_{\rm n}]
14:c3P 1 1 21/b-p 2bc [\overline{\rm P}] [2_{\rm bc}]
14:a1P 21/b 1 1-p 2xab [\overline{\rm P}] [2^{\rm x}_{\rm ab}]
14:a2P 21/n 1 1-p 2xn [\overline{\rm P}] [2^{\rm x}_{\rm n}]
14:a3P 21/c 1 1-p 2xac [\overline{\rm P}] [2^{\rm x}_{\rm ac}]
15:b1C 1 2/c 1-c 2yc [\overline{\rm C}] [2^{\rm y}_{\rm c}]
15:b2A 1 2/n 1-a 2yab [\overline{\rm A}] [2^{\rm y}_{\rm ab}]
15:b3I 1 2/a 1-i 2ya [\overline{\rm I}] [2^{\rm y}_{\rm a}]
15:-b1A 1 2/a 1-a 2ya [\overline{\rm A}] [2^{\rm y}_{\rm a}]
15:-b2C 1 2/n 1-c 2yac [\overline{\rm C}] [2^{\rm y}_{\rm ac}]
15:-b3I 1 2/c 1-i 2yc [\overline{\rm I}] [2^{\rm y}_{\rm c}]
15:c1A 1 1 2/a-a 2a [\overline{\rm A}] [2_{\rm a}]
15:c2B 1 1 2/n-b 2ab [\overline{\rm B}] [2_{\rm ab}]
15:c3I 1 1 2/b-i 2b [\overline{\rm I}] [2_{\rm b}]
15:-c1B 1 1 2/b -b 2b [\overline{\rm B}] [2_{\rm b}]
15:-c2A 1 1 2/n-a 2ab [\overline{\rm A}] [2_{\rm ab}]
15:-c3I 1 1 2/a-i 2a [\overline{\rm I}] [2_{\rm a}]
15:a1B 2/b 1 1-b 2xb [\overline{\rm B}] [2^{\rm x}_{\rm b}]
15:a2C 2/n 1 1-c 2xac [\overline{\rm C}] [2^{\rm x}_{\rm ac}]
15:a3I 2/c 1 1-i 2xc [\overline{\rm I}] [2^{\rm x}_{\rm c}]
15:-a1C 2/c 1 1-c 2xc [\overline{\rm C}] [2^{\rm x}_{\rm c}]
15:-a2B 2/n 1 1-b 2xab [\overline{\rm B}] [2^{\rm x}_{\rm ab}]
15:-a3I 2/b 1 1-i 2xb [\overline{\rm I}] [2^{\rm x}_{\rm b}]
16P 2 2 2p 2 2P 2 2
17P 2 2 21p 2c 2P [2_{\rm c}] 2
17:cabP 21 2 2p 2a 2aP [2_{\rm a}] [2_{\rm a}]
17:bcaP 2 21 2p 2 2bP 2 [2_{\rm b}]
18P 21 21 2p 2 2abP 2 [2_{\rm ab}]
18:cabP 2 21 21p 2bc 2P [2_{\rm bc}] 2
18:bcaP 21 2 21p 2ac 2acP [2_{\rm ac}] [2_{\rm ac}]
19P 21 21 21p 2ac 2abP [2_{\rm ac}] [2_{\rm ab}]
20C 2 2 21c 2c 2C [2_{\rm c}] 2
20:cabA 21 2 2a 2a 2aA [2_{\rm a}] [2_{\rm a}]
20:bcaB 2 21 2b 2 2bB 2 [2_{\rm b}]
21C 2 2 2c 2 2C 2 2
21:cabA 2 2 2a 2 2A 2 2
21:bcaB 2 2 2b 2 2B 2 2
22F 2 2 2f 2 2F 2 2
23I 2 2 2i 2 2I 2 2
24I 21 21 21i 2b 2cI [2_{\rm b}] [2_{\rm c}]
25P m m 2p 2 -2P 2 [\overline{2}]
25:cabP 2 m mp -2 2P [\overline{2}] 2
25:bcaP m 2 mp -2 -2P [\overline{2}\ \overline{2}]
26P m c 21p 2c -2P [2_{\rm c}] [\overline{2}]
26:ba-cP c m 21p 2c -2cP [2_{\rm c}] [\overline{2}_{\rm c}]
26:cabP 21 m ap -2a 2aP [\overline{2}_{\rm a}] [2_{\rm a}]
26:-cbaP 21 a mp -2 2aP [\overline{2}\ 2_{\rm a}]
26:bcaP b 21 mp -2 -2bP [\overline{2}\ \overline{2}_{\rm b}]
26:a-cbP m 21 bp -2b -2P [\overline{2}_{\rm b}] [\overline{2}]
27P c c 2p 2 -2cP 2 [\overline{2}_{\rm c}]
27:cabP 2 a ap -2a 2P [\overline{2}_{\rm a}] 2
27:bcaP b 2 bp -2b -2bP [\overline{2}_{\rm b}] [\overline{2}_{\rm b}]
28 P m a 2p 2 -2aP 2 [\overline{2}_{\rm a}]
28:ba-cP b m 2p 2 -2bP 2 [\overline{2}_{\rm b}]
28:cabP 2 m bp -2b 2P [\overline{2}_{\rm b}] 2
28:-cbaP 2 c mp -2c 2P [\overline{2}_{\rm c}] 2
28:bcaP c 2 mp -2c -2cP [\overline{2}_{\rm c}] [\overline{2}_{\rm c}]
28:a-cbP m 2 ap -2a -2aP [\overline{2}_{\rm a}] [\overline{2}_{\rm a}]
29P c a 21p 2c -2acP [2_{\rm c}] [\overline{2}_{\rm ac}]
29:ba-cP b c 21p 2c -2bP [2_{\rm c}] [\overline{2}_{\rm b}]
29:cabP 21 a bp -2b 2aP [\overline{2}_{\rm b}] [2_{\rm a}]
29:-cbaP 21 c ap -2ac 2aP [\overline{2}_{\rm ac}] [2_{\rm a}]
29:bcaP c 21 bp -2bc -2cP [\overline{2}_{\rm bc}] [\overline{2}_{\rm c}]
29:a-cbP b 21 ap -2a -2abP [\overline{2}_{\rm a}] [\overline{2}_{\rm ab}]
30P n c 2p 2 -2bcP 2 [\overline{2}_{\rm bc}]
30:ba-cP c n 2p 2 -2acP 2 [\overline{2}_{\rm ac}]
30:cabP 2 n ap -2ac 2P [\overline{2}_{\rm ac}] 2
30:-cbaP 2 a np -2ab 2P [\overline{2}_{\rm ab}] 2
30:bcaP b 2 np -2ab -2abP [\overline{2}_{\rm ab}] [\overline{2}_{\rm ab}]
30:a-cbP n 2 bp -2bc -2bcP [\overline{2}_{\rm bc}] [\overline{2}_{\rm bc}]
31P m n 21p 2ac -2P [2_{\rm ac}] [\overline{2}]
31:ba-cP n m 21p 2bc -2bcP [2_{\rm bc}] [\overline{2}_{\rm bc}]
31:cabP 21 m np -2ab 2abP [\overline{2}_{\rm ab}] [2_{\rm ab}]
31:-cbaP 21 n mp -2 2acP [\overline{2}\ 2_{\rm ac}]
31:bcaP n 21 mp -2 -2bcP [\overline{2}\ \overline{2}_{\rm bc}]
31:a-cbP m 21 np -2ab -2P [\overline{2}_{\rm ab}] [\overline{2}]
32P b a 2p 2 -2abP 2 [\overline{2}_{\rm ab}]
32:cabP 2 c bp -2bc 2P [\overline{2}_{\rm bc}] 2
32:bcaP c 2 ap -2ac -2ac P [\overline{2}_{\rm ac}] [\overline{2}_{\rm ac}]
33P n a 21 p 2c -2nP [2_{\rm c}] [\overline{2}_{\rm n}]
33:ba-cP b n 21p 2c -2abP [2_{\rm c}] [\overline{2}_{\rm ab}]
33:cabP 21 n b p -2bc 2aP [\overline{2}_{\rm bc}] [2_{\rm a}]
33:-cbaP 21 c np -2n 2aP [\overline{2}_{\rm n}] [2_{\rm a}]
33:bcaP c 21 n p -2n -2acP [\overline{2}_{\rm n}] [\overline{2}_{\rm ac}]
33:a-cbP n 21 a p -2ac -2nP [\overline{2}_{\rm ac}] [\overline{2}_{\rm n}]
34P n n 2p 2 -2nP 2 [\overline{2}_{\rm n}]
34:cabP 2 n np -2n 2P [\overline{2}_{\rm n}] 2
34:bcaP n 2 np -2n -2nP [\overline{2}_{\rm n}] [\overline{2}_{\rm n}]
35C m m 2c 2 -2C 2 [\overline{2}]
35:cabA 2 m ma -2 2A [\overline{2}] 2
35:bcaB m 2 mb -2 -2B [\overline{2}\ \overline{2}]
36C m c 21c 2c -2C [2_{\rm c}] [\overline{2}]
36:ba-c C c m 21c 2c -2cC [2_{\rm c}] [\overline{2}_{\rm c}]
36:cabA 21 m aa -2a 2aA [\overline{2}_{\rm a}] [2_{\rm a}]
36:-cbaA 21 a ma -2 2aA [\overline{2}\ 2_{\rm a}]
36:bcaB b 21 mb -2 -2bB [\overline{2}\ \overline{2}_{\rm b}]
36:a-cbB m 21 bb -2b -2B [\overline{2}_{\rm b}] [\overline{2}]
37C c c 2c 2 -2cC 2 [\overline{2}_{\rm c}]
37:cabA 2 a aa -2a 2A [\overline{2}_{\rm a}] 2
37:bcaB b 2 b b -2b -2bB [\overline{2}_{\rm b}] [\overline{2}_{\rm b}]
38A m m 2a 2 -2A 2 [\overline{2}]
38:ba-cB m m 2b 2 -2B 2 [\overline{2}]
38:cabB 2 m mb -2 2B [\overline{2}] 2
38:-cbaC 2 m mc -2 2C [\overline{2}] 2
38:bcaC m 2 mc -2 -2C [\overline{2}\ \overline{2}]
38:a-cbA m 2 ma -2 -2A [\overline{2}\ \overline{2}]
39A b m 2a 2 -2bA 2 [\overline{2}_{\rm b}]
39:ba-cB m a 2b 2 -2aB 2 [\overline{2}_{\rm a}]
39:cabB 2 c mb -2a 2B [\overline{2}_{\rm a}] 2
39:-cbaC 2 m bc -2a 2C [\overline{2}_{\rm a}] 2
39:bcaC m 2 ac -2a -2aC [\overline{2}_{\rm a}] [\overline{2}_{\rm a}]
39:a-cbA c 2 ma -2b -2bA [\overline{2}_{\rm b}] [\overline{2}_{\rm b}]
40A m a 2a 2 -2aA 2 [\overline{2}_{\rm a}]
40:ba-cB b m 2b 2 -2bB 2 [\overline{2}_{\rm b}]
40:cabB 2 m bb -2b 2B [\overline{2}_{\rm b}] 2
40:-cbaC 2 c mc -2c 2C [\overline{2}_{\rm c}] 2
40:bcaC c 2 mc -2c -2cC [\overline{2}_{\rm c}] [\overline{2}_{\rm c}]
40:a-cbA m 2 aa -2a -2aA [\overline{2}_{\rm a}] [\overline{2}_{\rm a}]
41A b a 2a 2 -2abA 2 [\overline{2}_{\rm ab}]
41:ba-cB b a 2b 2 -2abB 2 [\overline{2}_{\rm ab}]
41:cabB 2 c bb -2ab 2B [\overline{2}_{\rm ab}] 2
41:-cbaC 2 c bc -2ac 2C [\overline{2}_{\rm ac}] 2
41:bcaC c 2 ac -2ac -2acC [\overline{2}_{\rm ac}] [\overline{2}_{\rm ac}]
41:a-cbA c 2 aa -2ab -2abA [\overline{2}_{\rm ab}] [\overline{2}_{\rm ab}]
42F m m 2f 2 -2F 2 [\overline{2}]
42:cabF 2 m mf -2 2F [\overline{2}] 2
42:bcaF m 2 mf -2 -2F [\overline{2}\ \overline{2}]
43F d d 2f 2 -2dF 2 [\overline{2}_{\rm d}]
43:cabF 2 d df -2d 2F [\overline{2}_{\rm d}] 2
43:bcaF d 2 df -2d -2dF [\overline{2}_{\rm d}] [\overline{2}_{\rm d}]
44I m m 2i 2 -2I 2 [\overline{2}]
44:cabI 2 m mi -2 2I [\overline{2}] 2
44:bcaI m 2 mi -2 -2I [\overline{2}\ \overline{2}]
45I b a 2i 2 -2cI 2 [\overline{2}_{\rm c}]
45:cabI 2 c bi -2a 2I [\overline{2}_{\rm a}] 2
45:bcaI c 2 ai -2b -2bI [\overline{2}_{\rm b}] [\overline{2}_{\rm b}]
46I m a 2i 2 -2aI 2 [\overline{2}_{\rm a}]
46:ba-cI b m 2i 2 -2bI 2 [\overline{2}_{\rm b}]
46:cabI 2 m bi -2b 2I [\overline{2}_{\rm b}] 2
46:-cbaI 2 c mi -2c 2I [\overline{2}_{\rm c}] 2
46:bcaI c 2 mi -2c -2c I [\overline{2}_{\rm c}] [\overline{2}_{\rm c}]
46:a-cbI m 2 ai -2a -2aI [\overline{2}_{\rm a}] [\overline{2}_{\rm a}]
47P m m m-p 2 2 [\overline{\rm P}] 2 2
48:1P n n n:1p 2 2 -1nP 2 2 [\overline{1}_{\rm n}]
48:2P n n n:2-p 2ab 2bc [\overline{\rm P}] [2_{\rm ab}] [2_{\rm bc}]
49P c c m-p 2 2c [\overline{\rm P}] 2 [2_{\rm c}]
49:cabP m a a-p 2a 2 [\overline{\rm P}] [2_{\rm a}] 2
49:bcaP b m b-p 2b 2b [\overline{\rm P}] [2_{\rm b}] [2_{\rm b}]
50:1P b a n:1p 2 2 -1abP 2 2 [\overline{1}_{\rm ab}]
50:2P b a n:2-p 2ab 2b [\overline{\rm P}] [2_{\rm ab}] [2_{\rm b}]
50:1cabP n c b:1p 2 2 -1bcP 2 2 [\overline{1}_{\rm bc}]
50:2cabP n c b:2-p 2b 2bc [\overline{\rm P}] [2_{\rm b}] [2_{\rm bc}]
50:1bcaP c n a:1p 2 2 -1acP 2 2 [\overline{1}_{\rm ac}]
50:2bcaP c n a:2-p 2a 2c [\overline{\rm P}] [2_{\rm a}] [2_{\rm c}]
51P m m a-p 2a 2a [\overline{\rm P}] [2_{\rm a}] [2_{\rm a}]
51:ba-cP m m b-p 2b 2 [\overline{\rm P}] [2_{\rm b}] 2
51:cabP b m m-p 2 2b [\overline{\rm P}] 2 [2_{\rm b}]
51:-cbaP c m m-p 2c 2c [\overline{\rm P}] [2_{\rm c}] [2_{\rm c}]
51:bcaP m c m-p 2c 2 [\overline{\rm P}] [2_{\rm c}] 2
51:a-cbP m a m-p 2 2a [\overline{\rm P}] 2 [2_{\rm a}]
52P n n a-p 2a 2bc [\overline{\rm P}] [2_{\rm a}] [2_{\rm bc}]
52:ba-cP n n b-p 2b 2n [\overline{\rm P}] [2_{\rm b}] [2_{\rm n}]
52:cabP b n n-p 2n 2b [\overline{\rm P}] [2_{\rm n}] [2_{\rm b}]
52:-cbaP c n n-p 2ab 2c [\overline{\rm P}] [2_{\rm ab}] [2_{\rm c}]
52:bcaP n c n-p 2ab 2n [\overline{\rm P}] [2_{\rm ab}] [2_{\rm n}]
52:a-cbP n a n-p 2n 2bc [\overline{\rm P}] [2_{\rm n}] [2_{\rm bc}]
53P m n a-p 2ac 2 [\overline{\rm P}] [2_{\rm ac}] 2
53:ba-cP n m b-p 2bc 2bc [\overline{\rm P}] [2_{\rm bc}] [2_{\rm bc}]
53:cabP b m n-p 2ab 2ab [\overline{\rm P}] [2_{\rm ab}] [2_{\rm ab}]
53:-cbaP c n m-p 2 2ac [\overline{\rm P}] 2 [2_{\rm ac}]
53:bcaP n c m-p 2 2bc [\overline{\rm P}] 2 [2_{\rm bc}]
53:a-cbP m a n-p 2ab 2 [\overline{\rm P}] [2_{\rm ab}] 2
54P c c a-p 2a 2ac [\overline{\rm P}] [2_{\rm a}] [2_{\rm ac}]
54:ba-cP c c b-p 2b 2c [\overline{\rm P}] [2_{\rm b}] [2_{\rm c}]
54:cabP b a a-p 2a 2b [\overline{\rm P}] [2_{\rm a}] [2_{\rm b}]
54:-cbaP c a a-p 2ac 2c [\overline{\rm P}] [2_{\rm ac}] [2_{\rm c}]
54:bcaP b c b-p 2bc 2b [\overline{\rm P}] [2_{\rm bc}] [2_{\rm b}]
54:a-cbP b a b-p 2b 2ab [\overline{\rm P}] [2_{\rm b}] [2_{\rm ab}]
55P b a m-p 2 2ab [\overline{\rm P}] 2 [2_{\rm ab}]
55:cabP m c b -p 2bc 2 [\overline{\rm P}] [2_{\rm bc}] 2
55:bcaP c m a-p 2ac 2ac [\overline{\rm P}] [2_{\rm ac}] [2_{\rm ac}]
56 P c c n-p 2ab 2ac [\overline{\rm P}] [2_{\rm ab}] [2_{\rm ac}]
56:cabP n a a-p 2ac 2bc [\overline{\rm P}] [2_{\rm ac}] [2_{\rm bc}]
56:bcaP b n b-p 2bc 2ab [\overline{\rm P}] [2_{\rm bc}] [2_{\rm ab}]
57P b c m-p 2c 2b [\overline{\rm P}] [2_{\rm c}] [2_{\rm b}]
57:ba-c P c a m-p 2c 2ac [\overline{\rm P}] [2_{\rm c}] [2_{\rm ac}]
57:cabP m c a-p 2ac 2a [\overline{\rm P}] [2_{\rm ac}] [2_{\rm a}]
57:-cbaP m a b-p 2b 2a [\overline{\rm P}] [2_{\rm b}] [2_{\rm a}]
57:bcaP b m a-p 2a 2ab [\overline{\rm P}] [2_{\rm a}] [2_{\rm ab}]
57:a-cbP c m b-p 2bc 2c [\overline{\rm P}] [2_{\rm bc}] [2_{\rm c}]
58P n n m-p 2 2n [\overline{\rm P}] 2 [2_{\rm n}]
58:cabP m n n-p 2n 2 [\overline{\rm P}] [2_{\rm n}] 2
58:bcaP n m n-p 2n 2n [\overline{\rm P}] [2_{\rm n}] [2_{\rm n}]
59:1P m m n:1p 2 2ab -1abP 2 [2_{\rm ab}] [\overline{1}_{\rm ab}]
59:2P m m n:2-p 2ab 2a [\overline{\rm P}] [2_{\rm ab}] [2_{\rm a}]
59:1cabP n m m:1p 2bc 2 -1bcP [2_{\rm bc}] 2 [\overline{1}_{\rm bc}]
59:2cabP n m m:2-p 2c 2bc [\overline{\rm P}] [2_{\rm c}] [2_{\rm bc}]
59:1bcaP m n m:1p 2ac 2ac -1acP [2_{\rm ac}] [2_{\rm ac}] [\overline{1}_{\rm ac}]
59:2bcaP m n m:2-p 2c 2a [\overline{\rm P}] [2_{\rm c}] [2_{\rm a}]
60P b c n-p 2n 2ab [\overline{\rm P}] [2_{\rm n}] [2_{\rm ab}]
60:ba-cP c a n-p 2n 2c [\overline{\rm P}] [2_{\rm n}] [2_{\rm c}]
60:cabP n c a-p 2a 2n [\overline{\rm P}] [2_{\rm a}] [2_{\rm n}]
60:-cbaP n a b-p 2bc 2n [\overline{\rm P}] [2_{\rm bc}] [2_{\rm n}]
60:bcaP b n a-p 2ac 2b [\overline{\rm P}] [2_{\rm ac}] [2_{\rm b}]
60:a-cbP c n b-p 2b 2ac [\overline{\rm P}] [2_{\rm b}] [2_{\rm ac}]
61P b c a-p 2ac 2ab [\overline{\rm P}] [2_{\rm ac}] [2_{\rm ab}]
61:ba-cP c a b-p 2bc 2ac [\overline{\rm P}] [2_{\rm bc}] [2_{\rm ac}]
62P n m a-p 2ac 2n [\overline{\rm P}] [2_{\rm ac}] [2_{\rm n}]
62:ba-cP m n b-p 2bc 2a [\overline{\rm P}] [2_{\rm bc}] [2_{\rm a}]
62:cabP b n m-p 2c 2ab [\overline{\rm P}] [2_{\rm c}] [2_{\rm ab}]
62:-cbaP c m n-p 2n 2ac [\overline{\rm P}] [2_{\rm n}] [2_{\rm ac}]
62:bcaP m c n-p 2n 2a [\overline{\rm P}] [2_{\rm n}] [2_{\rm a}]
62:a-cbP n a m-p 2c 2n [\overline{\rm P}] [2_{\rm c}] [2_{\rm n}]
63C m c m-c 2c 2 [\overline{\rm C}] [2_{\rm c}] 2
63:ba-cC c m m-c 2c 2c [\overline{\rm C}] [2_{\rm c}] [2_{\rm c}]
63:cabA m m a-a 2a 2a [\overline{\rm A}] [2_{\rm a}] [2_{\rm a}]
63:-cbaA m a m-a 2 2a [\overline{\rm A}] 2 [2_{\rm a}]
63:bcaB b m m-b 2 2b [\overline{\rm B}] 2 [2_{\rm b}]
63:a-cbB m m b-b 2b 2 [\overline{\rm B}] [2_{\rm b}] 2
64C m c a-c 2ac 2 [\overline{\rm C}] [2_{\rm ac}] 2
64:ba-cC c m b-c 2ac 2ac [\overline{\rm C}] [2_{\rm ac}] [2_{\rm ac}]
64:cabA b m a-a 2ab 2ab [\overline{\rm A}] [2_{\rm ab}] [2_{\rm ab}]
64:-cbaA c a m-a 2 2ab [\overline{\rm A}] 2 [2_{\rm ab}]
64:bcaB b c m-b 2 2ab [\overline{\rm B}] 2 [2_{\rm ab}]
64:a-cbB m a b-b 2ab 2 [\overline{\rm B}] [2_{\rm ab}] 2
65C m m m-c 2 2 [\overline{\rm C}] 2 2
65:cabA m m m-a 2 2 [\overline{\rm A}] 2 2
65:bcaB m m m-b 2 2 [\overline{\rm B}] 2 2
66C c c m -c 2 2c [\overline{\rm C}] 2 [2_{\rm c}]
66:cabA m a a-a 2a 2 [\overline{\rm A}] [2_{\rm a}] 2
66:bcaB b m b-b 2b 2b [\overline{\rm B}] [2_{\rm b}] [2_{\rm b}]
67C m m a-c 2a 2 [\overline{\rm C}] [2_{\rm a}] 2
67:ba-cC m m b-c 2a 2a [\overline{\rm C}] [2_{\rm a}] [2_{\rm a}]
67:cabA b m m-a 2b 2b [\overline{\rm A}] [2_{\rm b}] [2_{\rm b}]
67:-cbaA c m m-a 2 2b [\overline{\rm A}] 2 [2_{\rm b}]
67:bcaB m c m-b 2 2a [\overline{\rm B}] 2 [2_{\rm a}]
67:a-cbB m a m-b 2a 2 [\overline{\rm B}] [2_{\rm a}] 2
68:1C c c a:1c 2 2 -1acC 2 2 [\overline{1}_{\rm ac}]
68:2C c c a:2-c 2a 2ac [\overline{\rm C}] [2_{\rm a}] [2_{\rm ac}]
68:1ba-cC c c b:1c 2 2 -1acC 2 2 [\overline{1}_{\rm ac}]
68:2ba-cC c c b:2-c 2a 2c [\overline{\rm C}] [2_{\rm a}] [2_{\rm c}]
68:1cabA b a a:1a 2 2 -1abA 2 2 [\overline{1}_{\rm ab}]
68:2cabA b a a:2-a 2a 2b [\overline{\rm A}] [2_{\rm a}] [2_{\rm b}]
68:1-cbaA c a a:1a 2 2 -1abA 2 2 [\overline{1}_{\rm ab}]
68:2-cbaA c a a:2-a 2ab 2b [\overline{\rm A}] [2_{\rm ab}] [2_{\rm b}]
68:1bcaB b c b:1b 2 2 -1abB 2 2 [\overline{1}_{\rm ab}]
68:2bcaB b c b:2-b 2ab 2b [\overline{\rm B}] [2_{\rm ab}] [2_{\rm b}]
68:1a-cbB b a b:1b 2 2 -1abB 2 2 [\overline{1}_{\rm ab}]
68:2a-cbB b a b:2-b 2b 2ab [\overline{\rm B}] [2_{\rm b}] [2_{\rm ab}]
69F m m m-f 2 2 [\overline{\rm F}] 2 2
70:1F d d d:1f 2 2 -1dF 2 2 [\overline{1}_{\rm d}]
70:2F d d d:2-f 2uv 2vw [\overline{\rm F}] [2_{\rm uv}] [2_{\rm vw}]
71I m m m-i 2 2 [\overline{\rm I}] 2 2
72I b a m-i 2 2c [\overline{\rm I}] 2 [2_{\rm c}]
72:cabI m c b-i 2a 2 [\overline{\rm I}] [2_{\rm a}] 2
72:bcaI c m a-i 2b 2b [\overline{\rm I}] [2_{\rm b}] [2_{\rm b}]
73I b c a-i 2b 2c [\overline{\rm I}] [2_{\rm b}] [2_{\rm c}]
73:ba-cI c a b-i 2a 2b [\overline{\rm I}] [2_{\rm a}] [2_{\rm b}]
74I m m a-i 2b 2 [\overline{\rm I}] [2_{\rm b}] 2
74:ba-cI m m b-i 2a 2a [\overline{\rm I}] [2_{\rm a}] [2_{\rm a}]
74:cabI b m m-i 2c 2c [\overline{\rm I}] [2_{\rm c}] [2_{\rm c}]
74:-cbaI c m m-i 2 2b [\overline{\rm I}] 2 [2_{\rm b}]
74:bcaI m c m-i 2 2a [\overline{\rm I}] 2 [2_{\rm a}]
74:a-cbI m a m-i 2c 2 [\overline{\rm I}] [2_{\rm c}] 2
75 P 4p 4P 4
76 P 41p 4wP [4_{\rm w}]
77P 42p 4cP [4_{\rm c}]
78P 43p 4cwP [4_{\rm cw}]
79I 4i 4I 4
80I 41i 4bwI [4_{\rm bw}]
81P -4p -4P [\overline{4}]
82I -4i -4I [\overline{4}]
83P 4/m-p 4 [\overline{\rm P}] 4
84P 42/m-p 4c [\overline{\rm P}] [4_{\rm c}]
85:1P 4/n:1p 4ab -1abP [4_{\rm ab}] [\overline{1}_{\rm ab}]
85:2P 4/n:2-p 4a [\overline{\rm P}] [4_{\rm a}]
86:1P 42/n:1p 4n -1nP [4_{\rm n}] [\overline{1}_{\rm n}]
86:2P 42/n:2-p 4bc [\overline{\rm P}] [4_{\rm bc}]
87I 4/m-i 4 [\overline{\rm I}] 4
88:1I 41/a:1i 4bw -1bwI [4_{\rm bw}] [\overline{1}_{\rm bw}]
88:2I 41/a:2-i 4ad [\overline{\rm I}] [4_{\rm ad}]
89P 4 2 2p 4 2P 4 2
90P 4 21 2p 4ab 2abP [4_{\rm ab}] [2_{\rm ab}]
91P 41 2 2p 4w 2cP [4_{\rm w}] [2_{\rm c}]
92P 41 21 2p 4abw 2nw [\rm{{P} 4_{abw} 2_{\hskip-4ptnw}}]
93 P 42 2 2p 4c 2P [4_{\rm c}] 2
94P 42 21 2p 4n 2nP [4_{\rm n}] [2_{\rm n}]
95P 43 2 2p 4cw 2cP [4_{\rm cw}] [2_{\rm c}]
96P 43 21 2p 4nw 2abwP [4_{\rm {\hskip-4pt\phantom b}nw}\ 2_{\rm abw}]
97I 4 2 2i 4 2I 4 2
98I 41 2 2i 4bw 2bwI [4_{\rm bw}] [2_{\rm bw}]
99P 4 m mp 4 -2P 4 [\overline{2}]
100 P 4 b mp 4 -2abP 4 [\overline{2}_{\rm ab}]
101P 42 c mp 4c -2cP [4_{\rm c}] [\overline{2}_{\rm c}]
102P 42 n mp 4n -2nP [4_{\rm n}] [\overline{2}_{\rm n}]
103P 4 c cp 4 -2cP 4 [\overline{2}_{\rm c}]
104P 4 n cp 4 -2nP 4 [\overline{2}_{\rm n}]
105P 42 m cp 4c -2P [4_{\rm c}] [\overline{2}]
106P 42 b cp 4c -2abP [4_{\rm c}] [\overline{2}_{\rm ab}]
107I 4 m mi 4 -2I 4 [\overline{2}]
108I 4 c mi 4 -2cI 4 [\overline{2}_{\rm c}]
109I 41 m di 4bw -2I [4_{\rm bw}] [\overline{2}]
110I 41 c di 4bw -2cI [4_{\rm bw}] [\overline{2}_{\rm c}]
111P -4 2 mp -4 2P [\overline{4}] 2
112P -4 2 cp -4 2cP [\overline{4}\ 2_{\rm c}]
113P -4 21 mp -4 2abP [\overline{4}\ 2_{\rm ab}]
114P -4 21 cp -4 2nP [\overline{4}\ 2_{\rm n}]
115 P -4 m 2p -4 -2P [\overline{4}\ \overline{2}]
116P -4 c 2p -4 -2cP [\overline{4}\ \overline{2}_{\rm c}]
117P -4 b 2p -4 -2abP [\overline{4}\ \overline{2}_{\rm ab}]
118P -4 n 2p -4 -2nP [\overline{4}\ \overline{2}_{\rm n}]
119I -4 m 2i -4 -2I [\overline{4}\ \overline{2}]
120I -4 c 2i -4 -2cI [\overline{4}\ \overline{2}_{\rm c}]
121I -4 2 mi -4 2I [\overline{4}] 2
122I -4 2 di -4 2bwI [\overline{4}\ 2_{\rm bw}]
123P 4/m m m-p 4 2 [\overline{\rm P}] 4 2
124P 4/m c c-p 4 2c [\overline{\rm P}] 4 [2_{\rm c}]
125:1P 4/n b m:1p 4 2 -1abP 4 2 [\overline{1}_{\rm ab}]
125:2P 4/n b m:2-p 4a 2b [\overline{\rm P}] [4_{\rm a}] [2_{\rm b}]
126:1P 4/n n c:1p 4 2 -1nP 4 2 [\overline{1}_{\rm n}]
126:2P 4/n n c:2-p 4a 2bc [\overline{\rm P}] [4_{\rm a}] [2_{\rm bc}]
127P 4/m b m-p 4 2ab [\overline{\rm P}] 4 [2_{\rm ab}]
128P 4/m n c-p 4 2n [\overline{\rm P}] 4 [2_{\rm n}]
129:1P 4/n m m:1p 4ab 2ab -1abP [4_{\rm ab}] [2_{\rm ab}] [\overline{1}_{\rm ab}]
129:2P 4/n m m:2-p 4a 2a [\overline{\rm P}] [4_{\rm a}] [2_{\rm a}]
130:1P 4/n c c:1p 4ab 2n -1abP [4_{\rm ab}] [2_{\rm n}] [\overline{1}_{\rm ab}]
130:2P 4/n c c:2-p 4a 2ac [\overline{\rm P}] [4_{\rm a}] [2_{\rm ac}]
131P 42/m m c-p 4c 2 [\overline{\rm P}] [4_{\rm c}] 2
132P 42/m c m-p 4c 2c [\overline{\rm P}] [4_{\rm c}] [2_{\rm c}]
133:1P 42/n b c:1p 4n 2c -1nP [4_{\rm n}] [2_{\rm c}] [\overline{1}_{\rm n}]
133:2P 42/n b c:2-p 4ac 2b [\overline{\rm P}] [4_{\rm ac}] [2_{\rm b}]
134:1P 42/n n m:1p 4n 2 -1nP [4_{\rm n}] 2 [\overline{1}_{\rm n}]
134:2P 42/n n m:2-p 4ac 2bc [\overline{\rm P}] [4_{\rm ac}] [2_{\rm bc}]
135P 42/m b c-p 4c 2ab [\overline{\rm P}] [4_{\rm c}] [2_{\rm ab}]
136P 42/m n m-p 4n 2n [\overline{\rm P}] [4_{\rm n}] [2_{\rm n}]
137:1P 42/n m c:1p 4n 2n -1nP [4_{\rm n}] [2_{\rm n}] [\overline{1}_{\rm n}]
137:2P 42/n m c:2 -p 4ac 2a [\overline{\rm P}] [4_{\rm ac}] [2_{\rm a}]
138:1P 42/n c m:1p 4n 2ab -1nP [4_{\rm n}] [2_{\rm ab}] [\overline{1}_{\rm n}]
138:2P 42/n c m:2-p 4ac 2ac [\overline{\rm P}] [4_{\rm ac}] [2_{\rm ac}]
139I 4/m m m-i 4 2 [\overline{\rm I}] 4 2
140I 4/m c m-i 4 2c [\overline{\rm I}] 4 [2_{\rm c}]
141:1I 41/a m d:1i 4bw 2bw -1bwI [4_{\rm bw}] [2_{\rm bw}] [\overline{1}_{\rm bw}]
141:2I 41/a m d:2-i 4bd 2 [\overline{\rm I}] [4_{\rm bd}] 2
142:1I 41/a c d:1i 4bw 2aw -1bwI [4_{\rm bw}] [2_{\rm aw}] [\overline{1}_{\rm bw}]
142:2I 41/a c d:2-i 4bd 2c [\overline{\rm I}] [4_{\rm bd}] [2_{\rm c}]
143P 3p 3P 3
144P 31p 31P [3_{\rm 1}]
145P 32p 32P [3_{\rm 2}]
146:hR 3:hr 3R 3
146:rR 3:rp 3*P 3*
147P -3-p 3 [\overline{\rm P}] 3
148:hR -3:h-r 3 [\overline{\rm R}] 3
148:rR -3:r-p 3* [\overline{\rm P}] 3*
149P 3 1 2p 3 2P 3 2
150P 3 2 1p 3 2"P 3 2"
151P 31 1 2p 31 2 (0 0 4)P [3_{\rm 1}] 2 (0 0 4)
152P 31 2 1p 31 2"P [3_{\rm 1}] 2"
153P 32 1 2p 32 2 (0 0 2)P [3_{\rm 2}] 2 (0 0 2)
154P 32 2 1p 32 2"P [3_{\rm 2}] 2"
155:hR 3 2:hr 3 2"R 3 2"
155:rR 3 2:rp 3* 2P 3* 2
156P 3 m 1p 3 -2"P 3 [\overline{2}]"
157P 3 1 mp 3 -2P 3 [\overline{2}]
158P 3 c 1p 3 -2"cP 3 [\overline{2}"_{\rm c}]
159P 3 1 cp 3 -2cP 3 [\overline{2}_{\rm c}]
160:hR 3 m:hr 3 -2"R 3 [\overline{2}]"
160:rR 3 m:rp 3* -2P 3* [\overline{2}]
161:hR 3 c:hr 3 -2"cR 3 [\overline{2}"_{\rm c}]
161:rR 3 c:rp 3* -2nP 3* [\overline{2}_{\rm n}]
162P -3 1 m-p 3 2 [\overline{\rm P}] 3 2
163P -3 1 c-p 3 2c [\overline{\rm P}] 3 [2_{\rm c}]
164P -3 m 1-p 3 2" [\overline{\rm P}] 3 2"
165P -3 c 1-p 3 2"c [\overline{\rm P}] 3 [2^{"}_{\rm c}]
166:hR -3 m:h-r 3 2" [\overline{\rm R}] 3 2"
166:rR -3 m:r-p 3* 2 [\overline{\rm P}] 3* 2
167:hR -3 c:h-r 3 2"c [\overline{\rm R}] 3 [2^{"}_{\rm c}]
167:rR -3 c:r-p 3* 2n [\overline{\rm P}] 3* [2_{\rm n}]
168P 6p 6P 6
169P 61p 61P [6_{\rm 1}]
170P 65p 65P [6_{\rm 5}]
171P 62p 62P [6_{\rm 2}]
172P 64p 64P [6_{\rm 4}]
173P 63p 6cP [6_{\rm c}]
174P -6p -6P [\overline{6}]
175P 6/m-p 6 [\overline{\rm P}] 6
176 P 63/m-p 6c [\overline{\rm P}] [6_{\rm c}]
177P 6 2 2p 6 2P 6 2
178P 61 2 2p 61 2 (0 0 5)P [6_{\rm 1}] 2 (0 0 5)
179P 65 2 2p 65 2 (0 0 1)P [6_{\rm 5}] 2 (0 0 1)
180P 62 2 2p 62 2 (0 0 4)P [6_{\rm 2}] 2 (0 0 4)
181P 64 2 2p 64 2 (0 0 2)P [6_{\rm 4}] 2 (0 0 2)
182P 63 2 2p 6c 2cP [6_{\rm c}] [2_{\rm c}]
183P 6 m mp 6 -2P 6 [\overline{2}]
184P 6 c c p 6 -2cP 6 [\overline{2}_{\rm c}]
185P 63 c mp 6c -2P [6_{\rm c}] [\overline{2}]
186P 63 m cp 6c -2cP [6_{\rm c}] [\overline{2}_{\rm c}]
187P -6 m 2p -6 2P [\overline{6}] 2
188P -6 c 2p -6c 2P [\overline{6}_{\rm c}] 2
189P -6 2 mp -6 -2P [\overline{6}\;\overline{2}]
190P -6 2 cp -6c -2cP [\overline{6}_{\rm c}] [\overline{2}_{\rm c}]
191P 6/m m m-p 6 2 [\overline{\rm P}] 6 2
192P 6/m c c-p 6 2c [\overline{\rm P}] 6 [2_{\rm c}]
193P 63/m c m-p 6c 2 [\overline{\rm P}] [6_{\rm c}] 2
194P 63/m m c-p 6c 2c [\overline{\rm P}] [6_{\rm c}] [2_{\rm c}]
195P 2 3p 2 2 3P 2 2 3
196F 2 3f 2 2 3F 2 2 3
197I 2 3i 2 2 3I 2 2 3
198P 21 3p 2ac 2ab 3P [2_{\rm ac}] [2_{\rm ab}] 3
199I 21 3i 2b 2c 3I [2_{\rm b}] [2_{\rm c}] 3
200P m -3-p 2 2 3 [\overline{\rm P}] 2 2 3
201:1P n -3:1p 2 2 3 -1nP 2 2 3 [\overline{1}_{\rm n}]
201:2P n -3:2-p 2ab 2bc 3 [\overline{\rm P}] [2_{\rm ab}] [2_{\rm bc}] 3
202F m -3-f 2 2 3 [\overline{\rm F}] 2 2 3
203:1F d -3:1f 2 2 3 -1dF 2 2 3 [\overline{1}_{\rm d}]
203:2F d -3:2-f 2uv 2vw 3 [\overline{\rm F}] [2_{\rm uv}] [2_{\rm vw}] 3
204I m -3-i 2 2 3 [\overline{\rm I}] 2 2 3
205P a -3-p 2ac 2ab 3 [\overline{\rm P}] [2_{\rm ac}] [2_{\rm ab}] 3
206I a -3-i 2b 2c 3 [\overline{\rm I}] [2_{\rm b}] [2_{\rm c}] 3
207P 4 3 2p 4 2 3P 4 2 3
208P 42 3 2p 4n 2 3P [4_{\rm n}] 2 3
209F 4 3 2f 4 2 3F 4 2 3
210F 41 3 2f 4d 2 3F [4_{\rm d}] 2 3
211I 4 3 2i 4 2 3I 4 2 3
212P 43 3 2p 4acd 2ab 3P [4_{\rm acd}] [2_{\rm ab}] 3
213P 41 3 2p 4bd 2ab 3P [4_{\rm bd}] [2_{\rm ab}] 3
214I 41 3 2i 4bd 2c 3I [4_{\rm bd}] [2_{\rm c}] 3
215P -4 3 mp -4 2 3P [\overline{4}] 2 3
216F -4 3 mf -4 2 3F [\overline{4}] 2 3
217I -4 3 mi -4 2 3I [\overline{4}] 2 3
218P -4 3 np -4n 2 3P [\overline{4}_{\rm n}] 2 3
219F -4 3 cf -4a 2 3F [\overline{4}_{\rm a}] 2 3
220I -4 3 di -4bd 2c 3I [\overline{4}_{\rm bd}] [2_{\rm c}] 3
221P m -3 m-p 4 2 3 [\overline{\rm P}] 4 2 3
222:1P n -3 n:1p 4 2 3 -1nP 4 2 3 [\overline{1}_{\rm n}]
222:2P n -3 n:2-p 4a 2bc 3 [\overline{\rm P}] [4_{\rm a}] [2_{\rm bc}] 3
223P m -3 n-p 4n 2 3 [\overline{\rm P}] [4_{\rm n}] 2 3
224:1P n -3 m:1p 4n 2 3 -1nP [4_{\rm n}] 2 3 [\overline{1}_{\rm n}]
224:2P n -3 m:2-p 4bc 2bc 3 [\overline{\rm P}] [4_{\rm bc}] [2_{\rm bc}] 3
225F m -3 m-f 4 2 3 [\overline{\rm F}] 4 2 3
226F m -3 c-f 4a 2 3 [\overline{\rm F}] [4_{\rm a}] 2 3
227:1F d -3 m:1f 4d 2 3 -1dF [4_{\rm d}] 2 3 [\overline{1}_{\rm d}]
227:2F d -3 m:2-f 4vw 2vw 3 [\overline{\rm F}] [4_{\rm vw}] [2_{\rm vw}] 3
228:1F d -3 c:1f 4d 2 3 -1adF [4_{\rm d}] 2 3 [\overline{1}_{\rm ad}]
228:2F d -3 c:2-f 4ud 2vw 3 [\overline{\rm F}] [4_{\rm ud}] [2_{\rm vw}] 3
229I m -3 m-i 4 2 3 [\overline{\rm I}] 4 2 3
230 I a -3 d -i 4bd 2c 3 [\overline{\rm I}] [4_{\rm bd}] [2_{\rm c}] 3

The codes appended to the space-group numbers listed in the first column identify the relationship between the symmetry elements and the crystal cell. Where no code is given the first choice listed below applies.

  • Monoclinic. Code = <unique axis><cell choice>: unique axis choices [cf. IT A (2005[link]) Table 4.3.2.1[link] ] b, -b, c, -c, a, -a; cell choices [cf. IT A (2005[link]) Table 4.3.2.1[link] ] 1, 2, 3.

  • Orthorhombic. Code = <origin choice><setting>: origin choices 1, 2; setting choices [cf. IT A (2005[link]) Table4.3.2.1[link] ] abc, ba-c, cab, -cba, bca, a-cb.

  • Tetragonal, cubic. Code = <origin choice>: origin choices 1, 2.

  • Trigonal. Code = <cell choice>: cell choices h (hexagonal), r (rhombohedral).


The conventional primitive hexagonal lattice may be transformed to a C-centred orthohexagonal setting using the change-of-basis operator[\openup3pt{\rm P}\;6\;({\rm x-1/2y, 1/2y, z})=\pmatrix{{1 \over 2}&-{3 \over 2}&0&0\cr{1 \over 2}&{1 \over 2}&0&0\cr0&0&1&0\cr0&0&0&1\cr}.] In this case the lattice translation for the C centring is obtained by transforming the integral translation t(0, 1, 0):[\eqalign{{\bi V}\cdot\pmatrix{0&1&0&1\cr}^T&=\pmatrix{1&-{1\over 2}&0&0\cr0&{1 \over 2}&0&0\cr0&0&1&0\cr0&0&0&1\cr}\pmatrix{0\cr1\cr0\cr1\cr}\cr&=\pmatrix{-{1\over 2}&{1\over 2}&0&1\cr}^T.\cr}]

The standard setting of an I-centred tetragonal space group may be transformed to a primitive setting using the change-of-basis operator[{\rm I }\;4\;({\rm y+z,x+z,x+y})=\pmatrix{0&1&0&0\cr0&1&-1&0\cr-1&1&0&0\cr0&0&0&1\cr}.] Note that in the primitive setting, the fourfold axis is along a + b.

References

First citation International Tables for Crystallography (2005). Vol. A. Space-group symmetry, edited by Th. Hahn, 5th ed., corrected reprint. Heidelberg: Springer.Google Scholar








































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