Abstract
Abstract Reactions of potassium pentacyanonitrosylchromate(I) monohydrate, K3[Cr(NO) (CN)5].H2O with some secondary aromatic amines, like N-ethyl-m-toluidine, N-isopropylaniline, l-n-pentyl-aniline and N-benzyl-o-phenetidine, and tertiary aromatic amines, like N,N-dimethyl-o-toluidine and N,N-diethyl-p-toluidine in aqueous acetic acid medium lead to the formation of derivative, [Cr(NO) (CN)2(L)2(H2O)] (where L = each aforesaid aromatic amine). These complexes have been characterized by elemental analyses, molar conductances, magnetic measurements, molecular weight determinations, electron spin resonance and infrared spectral studies. Chromium(I) has a low-spin {CrNO}5 electron configuration1 in all the complexes. An octahedral structure, where CN is trans to CN and the ligands L are trans to each other in an equatorial positions, and NO is trans to water in an axial position, has been proposed for the complexes.
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