@article {4865,
	title = {Synthesis, structure and magnetic properties of a chromium(III)-nicotinamide complex [Cr3O(O2CCH3)(6)(na)(3)](+) (na = nicotinamide)},
	journal = {Inorganica Chimica Acta},
	volume = {297},
	number = {1-2},
	year = {2000},
	note = {ISI Document Delivery No.: 277TNTimes Cited: 16Cited Reference Count: 20},
	month = {Jan},
	pages = {1-5},
	type = {Article},
	abstract = {The reaction between [Cr3O(O2CCH3)(7)(H2O)] ({\textquoteright}basic chromium acetate{\textquoteright}) and an excess of nicotinamide (na) at 120 degrees C, followed by dissolution of the mixture in water and addition of PF6-, led to the isolation of the first Cr(III)-nicotinamide complex [Cr3O(O2CCH3)(6)(na)(3)](+) (1). Crystals of the compound 1 . PF6. 3CH(3)CN were subjected to a detailed X-ray structural analysis. The three N-bonded na ligands, which occupy axial positions at the corners of the triangular basic chromium acetate, are nearly co-planar with the Cr3O system. The three Cr-N(na) bond distances are in the range 2.121(8)-2.128(8) Angstrom. Two of the na ligands on each cluster form four hydrogen bonds with two ligands from a neighboring cluster, via their amide ends with N...O distances of 2.88(1)-2.92(1) Angstrom. Magnetic susceptibility measurements of a powdered sample of 1 . PF6. 3CH(3)CN over the range 2-300 K showed that the three Cr(III) ions were antiferromagnetically coupled with J -10.4 cm(-1). There was no evidence for intermolecular magnetic exchange between the two Cr3O centers which are connected via hydrogen bonds. (C) 2000 Elsevier Science S.A. All rights reserved.},
	keywords = {CHROMIUM, CHROMIUM COMPLEXES, crystal structures, GLUCOSE-TOLERANCE FACTOR, MAGNETIC PROPERTIES, nicotinamide complexes},
	isbn = {0020-1693},
	url = {<Go to ISI>://000084949800002},
	author = {Lieberman, R. L. and Bino, A. and Mirsky, N. and Summers, D. A. and Thompson, R. C.}
}
