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Spontaneous formation of heteroligated Pt-II complexes with chelating hemilabile ligands

机译:具有螯合半不稳定配体的杂化Pt-II复合物的自发形成

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The spontaneous formation of the heteroligated complex [PtCl(kappa(2)-Ph2PCH2CH2SMe)(Ph2PCH2CH2SPh)]-Cl (8a) by a novel ligand rearrangement process has been observed. By using the weak-link approach, the relative arrangement of the alkyl and aryl groups can be controlled by abstraction of chloride from 8a to form the closed complex [Pt(kappa(2)-Ph2PCH2CH2SMe)(kappa(2)-Ph2PCH2CH2SPh)][BF4](2) (5) and reopening using halide ions to form semi-open complexes [PtX(kappa(2)-Ph2PCH2CH2SMe)(Ph2PCH2CH2SPh)]-BF4 (8b; X = Cl-) and (8c; X = I-). Analogous procedures using Ph2PCH2CH2SMe and 1,4-(Ph2PCH2CH2S)(2)C6H4 lead to heteroligated bimetallic complexes 7 and 9, illustrating that this ligand rearrangement process can be used as a tool for the assembly of complementary metallosupramolecular structures.
机译:已观察到通过新型配体重排过程自发形成的杂合复合物[PtCl(kappa(2)-Ph2PCH2CH2SMe)(Ph2PCH2CH2SPh)]-Cl(8a)。通过使用弱连接方法,可以通过从8a提取氯化物以形成闭合络合物[Pt(kappa(2)-Ph2PCH2CH2SMe)(kappa(2)-Ph2PCH2CH2SPh)]控制烷基和芳基的相对排列[BF4](2)(5),然后使用卤离子重开以形成半开络合物[PtX(kappa(2)-Ph2PCH2CH2SMe)(Ph2PCH2CH2SPh)]-BF4(8b; X = Cl-)和(8c; X =一世-)。使用Ph2PCH2CH2SMe和1,4-(Ph2PCH2CH2S)(2)C6H4的类似程序导致杂合双金属配合物7和9,说明该配体重排过程可用作组装互补性金属超分子结构的工具。

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