Article ID Journal Published Year Pages File Type
1308087 Inorganica Chimica Acta 2014 8 Pages PDF
Abstract

•A series of nickel(II) dithiolate complexes with diphosphine ligands has been prepared.•The new complexes were characterized by NMR and MS spectroscopy.•The molecular structures were determined by single crystal X-ray diffraction analysis.

A series of the mononuclear nickel(II) complexes 5–16 with N-substituted bis(diphenylphosphanyl)amine RN(PPh2)2 has been prepared and structurally characterized. Treatment of NiCl2·6H2O with RN(PPh2)2 [R = CH2Ph, 1; CH(CH3)2, 2; CH2CH2CH2CH3, 3; CH2CH(CH3)2, 4] in CH2Cl2/MeOH afforded the mononuclear nickel(II) dichloride complexes [RN(PPh2)2]NiCl2 [R = CH2Ph, 5; CH(CH3)2, 6; CH2CH2CH2CH3, 7; CH2CH(CH3)2, 8] in 66–71% yields. Further treatment of [RN(PPh2)2]NiCl2 with 1,2-ethanedithiol or 1,3-propanedithiol in the presence of triethylamine in CH2Cl2 produced the mononuclear nickel(II) dithiolate complexes [RN(PPh2)2]Ni(SCH2CH2S) [R = CH2Ph, 9; CH(CH3)2, 10; CH2CH2CH2CH3, 11; CH2CH(CH3)2, 12] and [RN(PPh2)2]Ni(SCH2CH2CH2S) [R = CH2Ph, 13; CH(CH3)2, 14; CH2CH2CH2CH3, 15; CH2CH(CH3)2, 16] in 41–74% yields, respectively. All the complexes 5–16 have been characterized by 1H NMR, 31P{1H} NMR, 13C{1H} NMR and high resolution MS spectroscopy, and for 3, 4, 6, 9–12 by X-ray crystallography.

Graphical abstractA series of the mononuclear nickel(II) dithiolate complexes with chelating N-substituted bis(diphenylphosphanyl)amine has been prepared by condensation reactions. These new complexes were structurally characterized by NMR and MS spectroscopy and some by X-ray crystallography.Figure optionsDownload full-size imageDownload as PowerPoint slide

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Physical Sciences and Engineering Chemistry Inorganic Chemistry
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