Abstract
Abstract Some novel mixed-ligand cyanonitrosyl {CrNO} 5 complexes of chromium(I), formed by the interaction of potassium penta-cyanonitrosylchroroate(I) monohydrate, K3[Cr(NO)(CN)5].H2O, with potentially bidentate quinoline derivative, viz., 2-hydrazinoquino-line, 3-hydrazinoquinoline, 2-quinolinecarboxylic acid, 3-quinoline-carboxylic acid, 4-quinolinecarboxylic acid, 2-quinolinecarboxalde-hyde, 3-quinolinecarboxaldehyde, 4-quinolinecarboxaldehyde, and methyl 3-isoquinolinecarboxylate are described. The products, which have been characterized by elemental analyses, electrical conductances, magnetic measurements, electron spin resonance and infrared spectral studies, have the general formula [Cr(NO)(CN) 2 (L) 2 (H2O)], where L = the said ligands. Octahedral structure has been proposed for the complexes. Chromium(I) has a low-spin {crNO} 5 electron configuration in these complexes.
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