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Isolated Linear CuCN Chains in a 2,3‐Dihydroxyquinoxaline Host Lattice
Author(s) -
Heller M.,
Sheldrick W. S.
Publication year - 2001
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/1521-3749(200104)627:4<569::aid-zaac569>3.0.co;2-9
Subject(s) - acetonitrile , cyanide , crystallography , molecule , chemistry , lattice (music) , materials science , inorganic chemistry , organic chemistry , physics , acoustics
CuCN · 2,3‐dihydroxyquinoxaline ( 1 ) can be crystallised by slowly cooling an acetonitrile solution of the components from 100 to 20 °C. 1 contains two polymeric isolated $^1_\infty$ [CuCN] chains within the open channels provided by hydrogen bonded stacks of 2,3‐dihydroxyquinoxaline molecules. Positional disorder is observed for the C/N atoms of the bridging cyanide ligands within the effectively linear $^1_\infty$ [CuCN] chains, which exhibit angles of 169.9(2)° at Cu and 171.8(6)°/178.1(6)° at the C/N atoms. Only very weak O…Cu interactions of 2.728(5) and 2.697(5) Å are observed between the CuCN chains and the 2,3‐dihydroxyquinoxaline stacks.