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Magnetic Interaction in Dinuclear Triphos−Cobalt Complexes with Co···Co Separations of 8 and 10 Å

✍ Scribed by Katja Heinze; Gottfried Huttner; Peter Schober

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
611 KB
Volume
1998
Category
Article
ISSN
1434-1948

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✦ Synopsis

Weak antiferromagnetic exchange interactions are observed ions are separated by 8 and 10 A ˚, as determined by X-ray crystallography. Insight into the interaction pathway is in two Co II dimers of the general formula [{(triphos)Co} 2 (µdicarboxylato)](BF 4 ) 2 where the dicarboxylate is the dianion gained through molecular orbital calculations performed on model compounds. The influence of bridging-ligand distor-of fumaric acid [3 • (BF 4 ) 2 ] or terephthalic acid [4 • (BF 4 ) 2 ] and triphos is the tridentate phosphorus ligand 1,1,1-tris(diphen-tions and the stereochemistry around the two cobalt centres is discussed. ylphosphanomethyl)ethane. In these complexes the metal

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