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Lookup NU author(s): Professor William Clegg
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Silver(I) complexes of 6-methyl-2-pyridinecarboxylic acid (HL) have been prepared, and the crystal structure of [Ag(L)(LH)] has been determined from X-ray diffraction data. This complex crystallizes in the monoclinic space group P21/n, with a = 13.4055(13), b = 7.1012(7), c = 15.588(2) Å, β = 112.779(2)°, and Z = 4. Anionic [AgL2]- units are linked together by protons in approximately symmetrical linear O-H -O hydrogen bonds involving uncoordinated carboxylate oxygen atoms, to give polymeric chains. The most significant intermolecular interaction between adjacent parallel chains is offset ring stacking of pairs of aromatic rings with a perpendicular distance of 3.27 Å. The Ag coordination geometry is highly distorted tetrahedral, from two pyridine N atoms and two carboxylate O atoms, each ligand forming a five-membered chelate ring.
Author(s): Leiva A, Clegg W, Cucunill-Sanchez L, Gonzalez-Duarte P, Pons J
Publication type: Article
Publication status: Published
Journal: Journal of Chemical Crystallography
Year: 1999
Volume: 29
Issue: 10
Pages: 1097-1101
Print publication date: 01/10/1999
ISSN (print): 1074-1542
ISSN (electronic): 1572-8854
Publisher: Springer
URL: http://dx.doi.org/10.1023/A:1009553607474
DOI: 10.1023/A:1009553607474
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