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 Results for DC.creator="A." AND DC.creator="G." AND DC.creator="Orpen" in section 9.5.3 of volume C
Use of the `Note' column
Allen, F. H., Watson, D. G., Brammer, L., Orpen, A. G. and Taylor, R.  International Tables for Crystallography (2006). Vol. C, Section 9.5.3.3, pp. 793-794 [ doi:10.1107/97809553602060000621 ]
... collected in Appendix 9.5.1. These record additional information as follows: (a) additional details concerning the chemical definition of substructures, e.g. the ... N, torsional constraints in conjugated systems; (c) any peculiarities of a particular bond-length distribution, e.g. sample dominated by C* = methyl ...

Definition of `Substructure'
Allen, F. H., Watson, D. G., Brammer, L., Orpen, A. G. and Taylor, R.  International Tables for Crystallography (2006). Vol. C, Section 9.5.3.2, pp. 792-793 [ doi:10.1107/97809553602060000621 ]
... The chemical environment of each bond is normally defined by a linear formulation of the substructure. The target bond is set ... O)2 (phosphate diesters). Occasionally, the chemical name of a functional group or ring system is used to define bond ... these cases, we include numbered chemical diagrams in Fig. 9.5.3.2. A combination of chemical name and linear formulation is often ...

Ordering of entries: the `Bond' column
Allen, F. H., Watson, D. G., Brammer, L., Orpen, A. G. and Taylor, R.  International Tables for Crystallography (2006). Vol. C, Section 9.5.3.1, p. 792 [ doi:10.1107/97809553602060000621 ]
... by element symbols according to the rows of Fig. 9.5.3.1(a); i.e. X changes slowest, Y fastest. The complete sequence runs ... carbon in the natural position: As-CC-CC-Te. Within a given X-Y pair, a secondary ordering is based on the coordination numbers (j) ...

Content and arrangement of the table
Allen, F. H., Watson, D. G., Brammer, L., Orpen, A. G. and Taylor, R.  International Tables for Crystallography (2006). Vol. C, Section 9.5.3, pp. 791-794 [ doi:10.1107/97809553602060000621 ]
... of the table The upper triangular matrix of Fig. 9.5.3.1(a) shows the 120 possible element-pair combinations that can be ... I, N, O, P, S, Se, Si, Te. Fig. 9.5.3.1(a) contains the number of discrete average bond lengths given in ... carbon. Bond-length values from individual structures are given for a further 30 element pairs indicated by an asterisk in ...

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