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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Formation and cleavage of platinacycles containing a fluorinated imine. Crystal structure of [PtMe(3,4,5-C6HF3CH=NCH2C6H5)PPh3]
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Formation and cleavage of platinacycles containing a fluorinated imine. Crystal structure of [PtMe(3,4,5-C6HF3CH=NCH2C6H5)PPh3]

机译：含氟化亚胺的platinacycles的形成和裂解。 [PtMe（3,4,5-C6HF3CH = NCH2C6H5）PPh3]的晶体结构

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The reaction of [Pt2Me4(mu-SMe2)(2)] with the ligand 3,4,5-C6H2F3CH-NCH2C6H5 (L) yielded the cyclometallated platinum(II) compound [PtMe(3,4,5-C6HF3CH=NCH2C6H5)SMe2] (1), in which the imine acts as a [C.N]-bidentate ligand. Compounds [PtMe(3,4,5-C6HF3CH=NCH2C6H5)DMSO] (2) (DMSO = dimethyl sulfoxide) and [PtMe(3,4,5-C6HF3CH=NCH2C6H5)PPh3] (3) were obtained from a displacement reaction of SMe2 for DMSO or PPh3. respectively. Oxidative addition of methyl iodide to compounds 1-3 produced, respectively, [PtMe2I(3.4.5-C6HF3CH=NCH2C6H5)SMe2] (4a/4b) as two isomers, [PtMe2I(3,4,5-{C6HF3CH=NCH2C6H5)}(2)] (5) and [PtMe2I(3,4,5-C6HF3CH NCH2C6H5)PPh3] (6). Platinum(II) metallacycles can be cleaved upon reaction with an excess of PPh3 or with the diphosphine dppe to yield, respectively, compounds [PtMe(3,4,5-C6HF3CH-NCH2C6H5)(PPh3)(2)] (7) and [PtMe(3,4,5-C6HF3CH-NCH2C6H5)dppe] (8) in which the imine acts as a monodentate [C] ligand. Analogous compounds Could not be obtained for platinum(IV) since in this case neither PPh3 nor dppe can cleave the metallacycle. The reaction of 4a/4b with dppe produced [{PtMe2I(3,4,5-C6HF3CH=NCH2C6H5)}(2)dppe] (11), a binuclear compound in which the diphosphine bridges two platinum(IN) moieties with the imine acting as a [C,N]-bidentate ligand. All compounds were characterised by analytical and spectroscopic techniques and compound 3 was also characterised crystallographically. (C) 2002 Elsevier Science Ltd. All rights reserved. [References: 35]
机译：[Pt2Me4（mu-SMe2）（2）]与配体3,4,5-C6H2F3CH-NCH2C6H5（L）的反应生成环化金属的铂（II）化合物[PtMe（3,4,5-C6HF3CH = NCH2C6H5） SMe2]（1），其中亚胺充当[CN]双齿配体。通过置换反应获得化合物[PtMe（3,4,5-C6HF3CH = NCH2C6H5）DMSO]（2）（DMSO =二甲基亚砜）和[PtMe（3,4,5-C6HF3CH = NCH2C6H5）PPh3]（3）用于DMSO或PPh3的SMe2。分别。将甲基碘氧化加成到化合物1-3中，分别生成[PtMe2I（3.4.5-C6HF3CH = NCH2C6H5）SMe2]（4a / 4b）作为两个异构体[PtMe2I（3,4,5- {C6HF3CH = NCH2C6H5） }（2）]（5）和[PtMe2I（3,4,5-C6HF3CH NCH2C6H5）PPh3]（6）。铂（II）金属环化合物可与过量的PPh3或二膦dppe反应裂解，分别得到化合物[PtMe（3,4,5-C6HF3CH-NCH2C6H5）（PPh3）（2）]（7）和[PtMe（3,4,5-C6HF3CH-NCH2C6H5）dppe]（8），其中亚胺充当单齿[C]配体。由于在这种情况下PPh3和dppe均不能裂解金属环，因此无法获得铂（IV）的类似化合物。 4a / 4b与dppe的反应产生了[{PtMe2I（3,4,5-C6HF3CH = NCH2C6H5）}（2）dppe]（11），一种双核化合物，其中二膦与亚胺桥接两个铂（IN）部分。充当[C，N]双齿配体。所有化合物均通过分析和光谱技术表征，化合物3也通过结晶学表征。 （C）2002 Elsevier ScienceLtd。保留所有权利。 [参考：35]

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