Section 9.6.3.3. Use of the `Note' column

The `Note' column refers to the footnotes collected in Appendix 9.6.1. These record additional information as follows: (a) notable features of the distribution of distances, e.g. likely bias due to dominance by one structure of substructure, skewness, bimodality (subdivisions of the entry usually follow, which remove these features whenever possible); (b) further details of the chemical substructure, such as the exclusion of structures with particular trans ligands; (c) details of exclusion criteria used for a given entry or group of entries, such as the constraint that the two M—Cl distances, in bridging (μ₂) chloride complexes, differ by < 0.1 Å (section 10.1.1.2); (d) references to previously published surveys of crystallographic results relevant to the entry in question. We do not claim that these entries are in any way comprehensive and we would be grateful to authors for notification (to AGO) of any omissions. This will serve to improve the content of any future version of Table 9.6.3.3.