Metal complexes of mercaptoamines—III. Different behaviour of β- and γ-(N,N-dimethyl)-mercaptoamines期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Metal complexes of mercaptoamines—III. Different behaviour of β- and γ-(N,N-dimethyl)-mercaptoamines

Authors:	H. Barrera J.C. Bayón J. Suades C. Germain J.P. Declerq

Affiliation:	Departament de Química Inorgànica, Facultat de Ciències, Universitat Autònoma de Barcelona, Bellaterra, Spain;Unité CRIS, Université de Louvain, Louvain-la-Neuve, Belgium

Abstract:	The complexes Ni₆(MPDMA)₁₂, [Ni₆(MPDMAH)₁₂]X₁₂ X = (I, ClO₄) and Pd₂(MPDMA)₂Cl₂ (MPDMA = ^t-S(CH₂)₃N(CH₃)₂) have been prepared and characterized. An X-ray diffraction study shows that the structure of [Ni₆(MPDMAH)₁₂] (ClO₄)₁₂ consists of a cyclic hexanuclear array of nickel atoms linked by sulphur bridging ligands. Infrared and electronic spectra show that there is no chelation in any of the nickel complexes. However, coordination through the nitrogen atoms occurs in the palladium complex. This behaviour differs from that of the homologous β-mercaptoamine, which forms monomeric chelate complexes with both nickel and palladium.

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