Willermann, M; Mulcahy, C; Sigel, R K O; Cerdà, M M; Freisinger, E; Sanz Miguel, P J; Roitzsch, M; Lippert, B (2006). Pyrazine as a building block for molecular architectures with PtII. Inorganic Chemistry, 45(5):2093-2099.
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A series of pyrazine (pz) complexes containing cis-(NH(3))(2)Pt(II), (tmeda)Pt(II) (tmeda = N,N,N',N'-tetramethylethylenediamine), and trans-(NH(3))(2)Pt(II) entities have been prepared and characterized by X-ray crystallography and/or (1)H 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(II)](2) (4b), a cyclic tetranuclear [Pt(II)](4) complex (5), and a trinuclear mixed-metal complex [Pt(2)Ag] (7). Mono- and bidentate binding modes are readily differentiated by (1)H NMR spectroscopy, and the assignment of pz protons in the case of monodentate coordination is aided by the observation of (195)Pt satellites. Formation of the open molecular box cis-[(4)](NO(3))(8).3.67H(2)O (5) from cis-(NH(3))(2)Pt(II) and pz follows expectations of the "molecular library approach" for the generation of a cyclic tetramer.
|Item Type:||Journal Article, refereed|
|Communities & Collections:||07 Faculty of Science > Institute of Inorganic Chemistry|
|Date:||06 March 2006|
|Deposited On:||11 Feb 2008 13:24|
|Last Modified:||23 Nov 2012 14:29|
|Publisher:||American Chemical Society|
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