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Synthesis and physico-chemical studies of novel mixed-ligand cyanonitrosyl {CrNO}5 complexes of chromium with benzyl-, benzoyl- and acetyl-pyridines

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Summary

Novel mixed-ligand cyanonitrosyl complexes of chromium(I), [Cr(NO)(CN)2(L)2(H2O)], (where L=2-, 3-, or 4-benzylpyridine, 2-(4-chlorobenzyl)pyridine, 2-, 3-, or 4-benzoylpyridine, 3-(4-methylbenzoyl)pyridine, or 2-, 3-, or 4-acetylpyridine) have been prepared by the interaction of potassium pentacyanonitrosylchromate(I) monohydrate, K3[Cr(NO)(CN)5]·H2O with L. The complexes, characterized by elemental analyses, magnetic measurements, e.s.r. and i.r. spectral studies, contain chromium(I) in a low-spind 5-configuration. An octahedral structure, where CN istrans to CN, L istrans to L, and NO istrans to water is proposed for all the complexes

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Author notes

  1. Wahid U. Malik

    Present address: Vice-Chanceller, Allahabad University, Allahabad, U.P., India

Authors and Affiliations

  1. Department of Chemistry, Atarra P.G. College, 210201, Atarra, India

    Ram C. Maurya, Dinesh C. Gupta, Rajesh Shukla & Raj K. Shukla

  2. Department of Chemistry, Roorkee University, 247667, Roorkee, India

    Wahid U. Malik

Authors
  1. Ram C. Maurya
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  2. Dinesh C. Gupta
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  3. Rajesh Shukla
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  4. Raj K. Shukla
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  5. Wahid U. Malik
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Additional information

Enemark and Feltham(1) have proposed circumventing the problem of the non-innocent nature of the nitrosyl ligand by considering nitrosyls as containing the {MNO}n group, wheren is the number of electrons of M, plus the number of electrons in the π*-orbital of the NO (or more convenientlyn is the number of d-electrons if nitrosyl is regarded as being coordinated as NO+)

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Maurya, R.C., Gupta, D.C., Shukla, R. et al. Synthesis and physico-chemical studies of novel mixed-ligand cyanonitrosyl {CrNO}5 complexes of chromium with benzyl-, benzoyl- and acetyl-pyridines. Transition Met Chem 12, 273–275 (1987). https://doi.org/10.1007/BF01023548

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  • DOI: https://doi.org/10.1007/BF01023548

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