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X‐ray Crystallographic Study of Copper( II ), Cobalt( II ) and Silver( I ) Complexes of Ligands Containing Two Oxine Subunits Linked by Xylylene Spacer Groups
Author(s) -
AlMandhary Muna R. A.,
Steel Peter J.
Publication year - 2004
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200300424
Subject(s) - chemistry , cobalt , ligand (biochemistry) , copper , intramolecular force , crystallography , chelation , stereochemistry , stacking , benzene , metal , inorganic chemistry , receptor , organic chemistry , biochemistry
X‐ray crystal structures are reported for six transition‐metal complexes of the ligands 1,2‐bis(8‐quinolyloxymethyl)benzene ( 3 ) and 1,3‐bis(8‐quinolyloxymethyl)benzene ( 4 ). In three mononuclear copper( II ) and cobalt( II ) complexes, 3 acts as a chelating ligand with either N , O , N ′‐tridentate or N , O , O ′, N ′‐tetradentate coordination. A novel dinuclear silver( I ) complex of 3 is shown to be stabilised by a number of weak metal−ligand contacts and multiple intramolecular π−π stacking interactions. In two dinuclear copper( II ) nitrate complexes of 4 , the ligand adopts very different bridging modes of coordination. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)