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The march of progress: structures of the adducts of potassium dicyanidoaurate(I) with 2,2′‐bipyridyl (redetermination) and 1,10‐phenanthroline
Author(s) -
Döring Cindy,
Strey Mark,
Jones Peter G.
Publication year - 2017
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229617016047
Subject(s) - phenanthroline , adduct , potassium , chemistry , medicinal chemistry , inorganic chemistry , organic chemistry
The structure of the 2,2′‐bipyridyl adduct poly[(μ 2 ‐2,2′‐bipyridyl‐κ 3 N , N ′: N )di‐μ 3 ‐cyanido‐κ 6 C : N : N ‐gold(I)potassium(I)], [AuK(CN) 2 (C 10 H 8 N 2 )] n , ( 1 ) (space group P 2 1 ), has been redetermined [previous determination: Jones et al. (1980). Acta Cryst . B 36 , 160–162]. The bipyridyl ligands coordinate only the potassium ion, which has a coordination sphere consisting of seven N‐atom donors; gold(I) remains in the form of linear dicyanidoaurate(I) ions. The extended structure consists of layers in which the Au I atoms form chains parallel to the short a axis, with Au…Au contacts of 3.7286 (1) Å, whereas the chains of potassium ions, which are also parallel to a , are bridged by bipyridyl and dicyanidoaurate residues. The analogous 1,10‐phenanthroline adduct, namely poly[di‐μ 3 ‐cyanido‐κ 6 C : N : N ‐(μ 2 ‐1,10‐phenanthroline‐κ 3 N , N ′: N )gold(I)potassium(I)], [AuK(CN) 2 (C 12 H 8 N 2 )] n , ( 2 ), crystallizes as nonmerohedral twins in the space group C 2/ c . The packing is closely related to that of ( 1 ), but the chains are now parallel to the short b axis and the layers are parallel to (10). The two independent Au I atoms occupy special positions on inversion centres and twofold axes; the Au…Au contacts are 3.6771 (2) Å.