Pyrazine as a building block for molecular architectures with PtII

被引：59

作者：

Willermann, M ^{[1
]}

Mulcahy, C ^{[1
]}

Sigel, RKO ^{[1
]}

Cerdà, MM ^{[1
]}

Freisinger, E ^{[1
]}

Miguel, PJS ^{[1
]}

Roitzsch, M ^{[1
]}

Lippert, B ^{[1
]}

机构：

[1] Univ Dortmund, Fachbereich Chem, D-44221 Dortmund, Germany

来源：

INORGANIC CHEMISTRY | 2006年 / 45卷 / 05期

关键词：

D O I：

10.1021/ic051966k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of pyrazine (pz) complexes containing cis-(NH3)(2)Pt-parallel to, (tmeda)Pt-parallel to (tmeda = N, N, N', N'-tetramethylethylenediamine), and trans-(NH3)(2)Pt-parallel to entities have been prepared and characterized by X-ray crystallography and/or H-1 NMR spectroscopy. In these compounds, the pz ligands act as monodentate (1-3) or bidentate bridging ligands (4-7). Three variants of the latter case are described: a dinuclear complex [Pt-parallel to](2) (4b), a cyclic tetranuclear [Pt-parallel to](4) complex (5), and a trinuclear mixed-metal complex [Pt2Ag] (7). Mono- and bidentate binding modes are readily differentiated by H-1 NMR spectroscopy, and the assignment of pz protons in the case of monodentate coordination is aided by the observation of Pt-195 satellites. Formation of the open molecular box cis-[{(NH3)(2)Pt(pz)}(4)](NO3)(8)(.)3.67H(2)O (5) from cis-(NH3)(2)Pt-parallel to and pz follows expectations of the "molecular library approach" for the generation of a cyclic tetramer.

引用

页码：2093 / 2099

页数：7

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