International
Tables for
Crystallography
Volume G
Definition and exchange of crystallographic data
Edited by S. R. Hall and B. McMahon

International Tables for Crystallography (2006). Vol. G. ch. 5.7, pp. 567-568

Table A5.7.2.2 

P. R. Strickland,a M. A. Hoylanda and B. McMahona*

a International Union of Crystallography, 5 Abbey Square, Chester CH1 2HU, England
Correspondence e-mail:  bm@iucr.org

Table A5.7.2.2 | top | pdf |
List of data-validation tests applied by PLATON

Test name Type Purpose
PLAT020 3 Check R(int)
PLAT021 1 Check expected number of reflections (max = 1 centro, 2 non-centro)
PLAT022 3 Check expected number of reflections
PLAT023 3 Check [\theta_{\rm max}]
PLAT024 4 Check for required Friedel pair averaging Z < Si
PLAT025 1 Check for hminlmax
PLAT026 3 Check for weak data
PLAT027 3 Check _diffrn_reflns_theta_full
PLAT028 3 Check _diffrn_measured_fraction_theta_max
PLAT029 3 Check _diffrn_measured_fraction_theta_full
PLAT030 1 Check _diffrn_reflns_number > _reflns_number_total
PLAT031 4 Check need for extinction correction parameter
PLAT032 4 Check s.u. Flack parameter
PLAT033 2 Check Flack parameter value
PLAT034 1 Check for Flack parameter value specified Z > Si, non-centro
PLAT035 1 Check for _chemical_absolute_configuration
PLAT036 1 Check for missing Flack parameter s.u.
PLAT037 1 Check _diffrn_reflns_theta_full
PLAT038 1 Check _diffrn_measured_fraction_theta_max
PLAT039 1 Check _diffrn_measured_fraction_theta_full
PLAT040 1 Test for H atoms [0, 1]
PLAT041 1 Test sum formula
PLAT042 1 Test moiety formula
PLAT043 1 Test for molecular weight
PLAT044 1 Check reported with calculated density
PLAT045 1 Check reported and calculated Z
PLAT046 1 Check reported density with calculated density from Z *MW
PLAT047 1 Test sum formula given
PLAT048 1 Test moiety formula given
PLAT049 1 Check calculated density > 1.0
PLAT050 1 Test for μ given [0, 1]
PLAT051 1 Test for difference μ(cif) with μ(calc) [%]
PLAT052 1 Test for specification of absorption correction method [0, 1]
PLAT053 1 Test for specification crystal dimension min [0, 1]
PLAT054 1 Test for specification crystal dimension mid [0, 1]
PLAT055 1 Test for specification crystal dimension max [0, 1]
PLAT056 1 Test for specification crystal radius [0, 1]
PLAT057 3 Test for correction for absorption needed
PLAT058 1 Test for specification Tmax [0, 1]
PLAT059 1 Test for specification Tmin [0, 1]
PLAT060 3 RR test
PLAT061 3 RR ′ test
PLAT062 4 Rescale Tmin and Tmax
PLAT063 3 Test for crystal size
PLAT064 1 Test for Tmax > Tmin
PLAT065 3 Test for applicability of (semi-)empirical absorptioncorrection [0, 1]
PLAT066 1 Test whether predicted and reported transmission ranges are identical
PLAT067 1 Ensure that minimum dimension < max dimension
PLAT068 1 Test for F(000) calc/reported difference
PLAT070 1 Test for duplicate labels
PLAT071 1 Test for uninterpretable labels
PLAT074 1 Test for occupancy = 0.0
PLAT075 1 Test for occupancy greater than 1.0
PLAT076 1 Test for occupancy less than 1.0 for atom on special position
PLAT077 4 Test for non-integral number of atoms in unit cell
PLAT080 2 Test maximum shift/error
PLAT081 1 Test for maximum shift/error given
PLAT082 2 Test for reasonable R1
PLAT083 2 Test for extreme second weighting parameter (SHELXL)
PLAT084 2 Test for reasonable wR2
PLAT085 2 Test for default SHELXL weighting scheme
PLAT086 2 Test for reasonable S (too low)
PLAT087 2 Test for reasonable S (too high)
PLAT088 3 Test for reasonable data/parameter ratio (centro)
PLAT089 3 Test for reasonable data/parameter ratio (non-centro) (Zmax < 18)
PLAT090 3 Test for reasonable data/parameter ratio (non-centro) (Zmax > 18)
PLAT091 1 Test for `No wavelength given'
PLAT092 4 Test for wavelength type [Cu, Mo, Ag] [0, 1]
PLAT093 1 Test for inconsistency `mixed' versus `no refined H'
PLAT094 2 Test for maximum/minimum residual density ratio
PLAT095 1 Test for residual density maximum given [0, 1]
PLAT096 1 Test for residual density minimum given [0, 1]
PLAT097 2 Test maximum residual density
PLAT098 2 Test for minimum residual density
PLAT099 1 Test for minimum residual density less than zero [0, 1]
PLAT110 2 Test for additional translational symmetry [0, 1]
PLAT111 2 Test for additional centre of symmetry [0, 100]
PLAT112 2 Test for additional symmetry [0, 1]
PLAT113 2 Report new space group suggested by ADDSYM
PLAT114 2 Report on ADDSYM problem
PLAT120 1 Test for consistent _symmetry_space_group_name_H-M and symmetry operations
PLAT121 1 Test for valid _symmetry_space_group_name_H-M
PLAT122 1 Test for ? _symmetry_space_group_name_H-M
PLAT123 1 Test for interpretable space-group symmetry
PLAT124 1 Test for _symmetry_equiv_pos_as_xyz present
PLAT125 4 Test for ? _symmetry_space_group_name_Hall
PLAT126 1 Test for _symmetry_space_group_name_Hall error
PLAT127 1 Test for _symmetry_space_group_name_Hall consistency
PLAT128 4 Test for non-standard monoclinic space-group setting
PLAT129 4 Test for unusual non-standard space-group name
PLAT130 1 Test for cubic: [a = b = c]
PLAT131 1 Test for cubic: [\alpha = \beta = \gamma = 90]
PLAT132 1 Test for trigonal/hexagonal: [a = b]
PLAT133 1 Test for trigonal/hexagonal: [\alpha = \beta = 90]
PLAT134 1 Test for trigonal/hexagonal: [\gamma = 120]
PLAT135 1 Test for tetragonal: [a = b]
PLAT136 1 Test for tetragonal: [\alpha = \beta = \gamma = 90]
PLAT137 1 Test for orthorhombic: [\alpha = \beta = \gamma = 90]
PLAT138 1 Test for monoclinic more than 1 angle off 90 degrees
PLAT139 1 Test for rhombohedral [a = b = c]
PLAT140 1 Test for rhombohedral [\alpha = \beta = \gamma]
PLAT141 4 S.u. on a axis small or missing
PLAT142 4 S.u. on b axis small or missing
PLAT143 4 S.u. on c axis small or missing
PLAT144 4 S.u. on [\alpha] small or missing
PLAT145 4 S.u. on [\beta] small or missing
PLAT146 4 S.u. on [\gamma] small or missing
PLAT147 1 S.u. on symmetry restricted cell angle
PLAT150 1 Check volume
PLAT151 1 Check for s.u. on volume
PLAT152 1 Check for consistency of s.u. on volume and cell parameters
PLAT155 4 Check for reduced cell aP
PLAT156 4 Check for non-standard axial order
PLAT157 4 Check for non-standard monoclinic [\beta] angle < 90 degrees
PLAT161 4 Missing x-coordinate s.u.
PLAT162 4 Missing y-coordinate s.u.
PLAT163 4 Missing z-coordinate s.u.
PLAT164 4 Check for refined C—H H atoms
PLAT165 3 Check for R-flagged non-H atoms
PLAT166 4 Check for calc flagged atoms with s.u.'s on coordinates
PLAT170 4 Check for sufficient data in atom data loop
PLAT199 1 Test for SHELXL room-temperature default (cell)
PLAT200 1 Test for SHELXL room-temperature default (data collection)
PLAT201 2 Test for isotropic non-H atoms in main residue(s)
PLAT202 3 Test for isotropic non-H atoms in anion? or solvent?
PLAT210 3 Test for all-isotropic a.d.p.(s)
PLAT211 2 Test for NPD a.d.p.'s (1.0) in main residue(s)
PLAT212 2 Test for NPD a.d.p.'s in anion? & solvent? [0, 1]
PLAT213 2 Test ratio a.d.p. max/min in main residue(s)
PLAT214 2 Test ratio a.d.p. max/min in anion? or solvent?
PLAT215 3 Test for unusual disordered atom a.d.p. in main residue
PLAT216 3 Test for unusual disordered atom a.d.p. in minor residue
PLAT217 1 Test for incomplete Uij data
PLAT220 2 Test Ueq(max)/Ueq(min) range for non-H atoms in non-solvent
PLAT221 4 Test Ueq(max)/Ueq(min) range for non-H atoms in solvent
PLAT222 3 Test Ueq(max)/Ueq(min) range for H atoms in non-solvent
PLAT223 4 Test Ueq(max)/Ueq(min) range for H atoms in solvent
PLAT230 2 Hirshfeld rigid-bond test [Acta Cryst. (1976), A32, 239–244 ]
PLAT231 4 Hirshfeld rigid-bond test [Acta Cryst. (1976), A32, 239–244 ]
PLAT232 2 Hirshfeld rigid-bond test (metal-X) [Acta Cryst. (1976), A32, 239–244 ]
PLAT233 4 Hirshfeld rigid-bond test (metal-X) [Acta Cryst. (1976), A32, 239–244 ]
PLAT241 2 Test for unusually high Ueq as compared with bonded neighbours
PLAT242 2 Test for unusually low Ueq as compared with bonded neighbours
PLAT243 4 Test for unusually high solvent Ueq as compared with bonded neighbours
PLAT244 4 Test for unusually low solvent Ueq as compared with bonded neighbours
PLAT250 2 Test for unusual anisotropic average Uij
PLAT301 3 Test for main residue(s) disorder
PLAT302 4 Test for (anion/solvent) disorder
PLAT305 2 Test for isolated hydrogen atoms
PLAT306 2 Test for isolated oxygen atoms
PLAT307 2 Test for isolated metal atoms
PLAT308 2 Test for single-bonded metal atoms
PLAT309 2 Test for single-bonded oxygen atoms
PLAT310 2 Test for `too close' (symmetry-related) full-weight atoms
PLAT311 2 Test for isolated disordered oxygen atoms
PLAT312 2 Test for C=O—H
PLAT313 2 Test for O with three covalent bonds
PLAT318 2 Hybridization problem on N in main residue(s)
PLAT319 2 Hybridization problem on N in solvent/ion
PLAT320 2 Hybridization problem on C in main residue(s)
PLAT321 2 Hybridization problem on C in solvent/ion
PLAT322 2 Hybridization problem on non-C in main residue(s)
PLAT323 2 Hybridization problem on non-C in solvent/ion
PLAT324 2 Check for possibly missing H on coordinating X—N—X in main residue
PLAT325 2 Check for possibly missing H on coordinating X—N—X in solvent/anion
PLAT326 2 Check for possibly missing hydrogen atom on carbon with sp3-like geometry in the main residue
PLAT327 2 Check for possibly missing hydrogen atom on carbon with sp3-like geometry in the solvent/anion
PLAT328 2 Check for possibly missing H on potentially sp3 P
PLAT330 2 Check average phenyl C—C
PLAT331 2 Check average phenyl C—C
PLAT332 2 Check phenyl C—C range
PLAT333 2 Check average in multiply substituted benzene C—C
PLAT334 2 Check average in multiply substituted benzene C—C
PLAT335 2 Check multiply substituted benzene C—C range
PLAT338 2 Check average torsion angle in cyclohexane ring
PLAT340 3 Check bond precision for C—C in light-atom structures [Z(max) < 20]
PLAT341 3 Check bond precision for C—C in structures [19 < Z(max) < 40]
PLAT342 3 Check bond precision for C—C in structures [Z(max) > 39]
PLAT350 3 Test for short C—H (ångstrom difference) XRAY: 0.96
PLAT351 3 Test for long C—H (ångstrom difference) XRAY: 0.96
PLAT352 3 Test for short N—H (ångstrom difference) XRAY: 0.87
PLAT353 3 Test for long N—H (ångstrom difference) XRAY: 0.87
PLAT354 3 Test for short O—H (ångstrom difference) XRAY: 0.82
PLAT355 3 Test for long O—H (ångstrom difference) XRAY: 0.82
PLAT360 2 Test for short C4—C4 (ångstrom difference) XRAY: 1.54
PLAT361 2 Test for long C4—C4 (ångstrom difference) XRAY: 1.54
PLAT362 2 Test for short C4—C3 (ångstrom difference) XRAY: 1.52
PLAT363 2 Test for long C4—C3 (ångstrom difference) XRAY: 1.52
PLAT364 2 Test for short C4—C2 (ångstrom difference) XRAY: 1.46
PLAT365 2 Test for long C4—C2 (ångstrom difference) XRAY: 1.46
PLAT366 2 Test for short C?—C? (ångstrom difference) XRAY: 1.50
PLAT367 2 Test for long C?—C? (ångstrom difference) XRAY: 1.50
PLAT368 2 Test for short C3—C3 (ångstrom difference) XRAY: 1.34
PLAT369 2 Test for long C3—C3 (ångstrom difference) XRAY: 1.34
PLAT370 2 Test for short C3—C2 (ångstrom difference) XRAY: 1.31
PLAT371 2 Test for long C3—C2 (ångstrom difference) XRAY: 1.31
PLAT372 2 Test for short C2—C2 (ångstrom difference) XRAY: 1.25
PLAT373 2 Test for long C2—C2 (ångstrom difference) XRAY: 1.25
PLAT374 2 Test for long N—N bond (> 1.45 Å)
PLAT380 4 Test for incorrectly oriented methyl moiety
PLAT390 3 Test methyl moiety X—C—H bond angle
PLAT391 3 Test methyl moiety H—C—H bond angle
PLAT395 2 Test X—O—Y angle
PLAT396 2 Test Si—O—Si angle
PLAT410 2 Test for short non-bonding intra H⋯H contacts
PLAT411 2 Test for short non-bonding inter H⋯H contacts
PLAT412 2 Test for short non-bonding intra H⋯H contacts (involving XH3)
PLAT413 2 Test for short non-bonding inter H⋯H contacts (involving XH3)
PLAT414 2 Test for short non-bonding intra D—H⋯H—X contacts
PLAT415 2 Test for short non-bonding inter D—H⋯H—X contacts
PLAT416 2 Test for short non-bonding intra D—H⋯H—D contacts
PLAT417 2 Test for short non-bonding inter D—H⋯H—D contacts
PLAT420 2 Test for D—H without acceptor
PLAT430 2 Test for short non-bonding inter DA contacts
PLAT431 2 Test for short non-bonding inter HL⋯A contacts (HL = halogen)
PLAT432 2 Test for short non-bonding inter XY contacts
PLAT433 4 Test for short non-bonding minor⋯minor inter XY contacts
PLAT480 4 Test for too large H⋯A
PLAT481 4 Test for too large DA
PLAT482 4 Test for too small D—H⋯A angle
PLAT601 2 Test for solvent accessible voids
PLAT602 4 Test for too large solvent accessible voids
PLAT603 4 Test for too large unit cell for void search
PLAT604 4 Test for too many voids
PLAT701 1 Test for consistency of bonds and coordinates in CIF
PLAT702 1 Test for consistency of angles and coordinates in CIF
PLAT703 1 Test for consistency of torsions and coordinates in CIF
PLAT704 1 Test for consistency of contact distances and coordinates in CIF
PLAT705 1 Test for consistency of H-bond D—H distances and coordinates in CIF
PLAT706 1 Test for consistency of H-bond H⋯A distances and coordinates in CIF
PLAT707 1 Test for consistency of H-bond DA distances and coordinates in CIF
PLAT708 1 Test for consistency of H-bond D—H⋯A angles and coordinates in CIF
PLAT710 4 Test for linear torsions in CIF
PLAT711 1 Test for label problem for bonds in CIF
PLAT712 1 Test for label problem for angles in CIF
PLAT713 1 Test for label problem for torsions in CIF
PLAT714 1 Test for label problem for contact distances in CIF
PLAT715 1 Test for label problem for H-bond D—H distances in CIF
PLAT716 1 Test for label problem for H-bond H⋯A distances in CIF
PLAT717 1 Test for label problem for H-bond DA distances in CIF
PLAT718 1 Test for label problem for H-bond D—H⋯A angles in CIF
PLAT720 4 Test for unusual labels
PLAT721 1 Test for consistency of bonds and coordinates in CIF
PLAT722 1 Test for consistency of angles and coordinates in CIF
PLAT723 1 Test for consistency of torsions and coordinates in CIF
PLAT724 1 Test for consistency of contact distances and coordinates in CIF
PLAT725 1 Test for consistency of H-bond D—H distances and coordinates in CIF
PLAT726 1 Test for consistency of H-bond H⋯A distances and coordinates in CIF
PLAT727 1 Test for consistency of H-bond DA distances and coordinates in CIF
PLAT728 1 Test for consistency of H-bond D—H⋯A angles and coordinates in CIF
PLAT731 1 Test for consistency of bond s.u.'s and coordinate s.u.'s in CIF
PLAT732 1 Test for consistency of angle s.u.'s and coordinate s.u.'s in CIF
PLAT733 1 Test for consistency of torsion s.u.'s and coordinate s.u.'s in CIF
PLAT734 1 Test for consistency of contact distance s.u.'s and coordinate s.u.'s in CIF
PLAT735 1 Test for consistency of H-bond D—H distance s.u.'s and coordinate s.u.'s in CIF
PLAT736 1 Test for consistency of H-bond H⋯A distance s.u.'s and coordinate s.u.'s in CIF
PLAT737 1 Test for consistency of H-bond D⋯A distance s.u.'s and coordinate s.u.'s in CIF
PLAT738 1 Test for consistency of H-bond D—H⋯A angle s.u.'s and coordinate s.u.'s in CIF
PLAT741 1 Test for missing bond s.u. in CIF
PLAT742 1 Test for missing angle s.u. in CIF
PLAT743 1 Test for missing torsion s.u. in CIF
PLAT744 1 Test for missing contact distance s.u. in CIF
PLAT745 1 Test for missing H-bond D—H distance s.u. in CIF
PLAT746 1 Test for missing H-bond H⋯A distance s.u. in CIF
PLAT747 1 Test for missing H-bond DA distance s.u. in CIF
PLAT748 1 Test for missing H-bond D—H⋯A angle s.u. in CIF
PLAT751 4 Test for senseless bond s.u. in CIF
PLAT752 4 Test for senseless angle s.u. in CIF
PLAT753 4 Test for senseless torsion s.u. in CIF
PLAT754 4 Test for senseless contact distance s.u. in CIF
PLAT755 4 Test for senseless H-bond D—H distance s.u. in CIF
PLAT756 4 Test for senseless H-bond H⋯A distance s.u. in CIF
PLAT757 4 Test for senseless H-bond DA distance s.u. in CIF
PLAT758 4 Test for senseless H-bond D—H⋯A angle s.u. in CIF
PLAT761 1 Test for the presence of at least one X—H in the CIF
PLAT762 1 Test for at least one XY—H or H—Y—H entry in the CIF
PLAT763 1 Test for missing bonds in CIF
PLAT764 4 Test for overcomplete bonds in CIF
PLAT770 2 Test for suspect C—H bonds in CIF (not caught otherwise)
PLAT771 2 Test for suspect N—H bonds in CIF (not caught otherwise)
PLAT772 2 Test for suspect O—H bonds in CIF (not caught otherwise)
PLAT773 2 Test for suspect C—C bonds in CIF (not caught otherwise)
PLAT779 2 Test for suspect angle in CIF (not caught otherwise)
PLAT780 2 Test whether coordinates form a connected set
PLAT790 4 Test whether c.g. residue in unit-cell box
PLAT798 4 Test for alphanumeric label on coordinate record
PLAT799 4 Test for alphanumeric label on displacement-parameter record
PLAT801 4 Test for missing, incomplete or out-of-order cell data
PLAT802 1 Test for input lines longer than 80 characters
PLAT803 1 Test for loop problem in CIF-read
PLAT804 4 Test for ARU-pack problem in PLATON
PLAT805 4 Test for insufficient coordinate data
PLAT806 4 Test for insufficient Uij data
PLAT810 4 Test for out-of-memory problem
PLAT850 4 Test for BASF/TWIN problem in SHELXL