Synthesis and reaction chemistry of 4-nitrile-substituted NCN-pincer palladium(II) and platinum(II) complexes (NCN=[NC-4-C6H2(CH2NMe2)2-2,6]−)
| Autor: | Heinrich Lang, Gerard P. M. van Klink, Anthony L. Spek, Allison M. Mills, Stefan Köcher, Bernhard Walfort, Gerard van Koten |
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| Rok vydání: | 2008 |
| Předmět: |
Coordination sphere
Nitrile Coordination polymer Ligand Coordination number Organic Chemistry Inorganic chemistry chemistry.chemical_element Biochemistry Medicinal chemistry Pincer movement Inorganic Chemistry chemistry.chemical_compound chemistry Materials Chemistry Physical and Theoretical Chemistry Platinum Palladium |
| Zdroj: | Journal of Organometallic Chemistry. 693:1991-1996 |
| ISSN: | 0022-328X |
| DOI: | 10.1016/j.jorganchem.2008.02.027 |
| Popis: | Nitrile-functionalized NCN-pincer complexes of type [MBr(N C-4-C6H2(CH2NMe2)2-2,6)] (6a, M = Pd; 6b, M = Pt) (NCN = [C6H2(CH2NMe2)2-2,6]−) are accessible by the reaction of Br-1-N C-4-C6H2(CH2NMe2)2-2,6 (2b) with [Pd2(dba)3 · CHCl3] (5a) (dba = dibenzylidene acetone) and [Pt(tol-4)2(SEt2)]2 (5b) (tol = tolyl), respectively. Complex 6b could successfully be converted to the linear coordination polymer {[Pt(N C-4-C6H2(CH2NMe2)2-2,6)](ClO4)}n (8) upon its reaction with the organometallic heterobimetallic π-tweezer compound {[Ti](μ-σ,π-C CSiMe3)2}AgOClO3 (7) ([Ti] = (η5-C5H4SiMe3)2Ti). The structures of 6a (M = Pd) and 6b (M = Pt) in the solid state are reported. In both complexes the d8-configurated transition metal ions palladium(II) and platinum(II) possess a somewhat distorted square-planar coordination sphere. Coordination number 4 at the group-10 metal atoms M is reached by the coordination of two ortho-substituents Me2NCH2, the NCN ipso-carbon atom and the bromide ligand. The N C group is para-positioned with respect to M. |
| Databáze: | OpenAIRE |
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