Synthesis and Reactivity of Dinuclear Complexes Containing 2-Phenyl-Metal Interactions. Crystal Structures of [NBu4
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- 作者：José ; M. Casas ; Juan Fornié ; s ; Francisco Martí ; nez ; Angel J. Rueda ; Milagros Tomá ; s ; and Alan J. Welch
- 刊名：Inorganic Chemistry
- 出版年：1999
- 出版时间：April 5, 1999
- 年：1999
- 卷：38
- 期：7
- 页码：1529 - 1534
- 全文大小：116K
- 年卷期：v.38,no.7(April 5, 1999)
- ISSN：1520-510X
文摘
Reaction between [NBu4][Pt(C6F5)3(dppm-
1P)] and cis-[M(C6X5)2(thf)2] (M = Pt, Pd; X = F, Cl; thf =tetrahydrofuran) leads to dinuclear derivatives with dppm ligands bridging two metal centers: [NBu4][(C6F5)3Pt{
-Ph2PCH2PPh(
2-Ph)}M(C6X5)2] [X = F, M = Pt (1), M = Pd (2); X = Cl, M = Pt (3), M = Pd (4)]. Thestructural characterization of complex 1 by single-crystal X-ray diffraction (orthorhombic system, space groupFdd2, with a = 26.520(7) Å, b = 83.69(3) Å, c = 13.835(5) Å, V = 30706(11) Å3, and Z = 16) reveals twosquare-planar platinum(II) fragments sharing a dppm ligand with a 2-phenyl-platinum interaction between aphenyl ring of the dppm ligand and one platinum center. This weak 2-phenyl-platinum interaction can be easilydisplaced by addition of ligands such as CO (giving complex 5), PPh3 (6), or p-toluidine (7). The structure of 5was determined by single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group Pn, witha = 12.259(2) Å, b = 16.375(3) Å, c = 18.851(4) Å, 
= 100.99(3)
, V = 3714.8 Å3, and Z = 2. The complexconsists of two square-planar platinum(II) fragments with the dppm ligand acting as a conventional bridge.
1P)] and cis-[M(C6X5)2(thf)2] (M = Pt, Pd; X = F, Cl; thf =tetrahydrofuran) leads to dinuclear derivatives with dppm ligands bridging two metal centers: [NBu4][(C6F5)3Pt{-Ph2PCH2PPh(2-Ph)}M(C6X5)2] [X = F, M = Pt (1), M = Pd (2); X = Cl, M = Pt (3), M = Pd (4)]. Thestructural characterization of complex 1 by single-crystal X-ray diffraction (orthorhombic system, space groupFdd2, with a = 26.520(7) Å, b = 83.69(3) Å, c = 13.835(5) Å, V = 30706(11) Å3, and Z = 16) reveals twosquare-planar platinum(II) fragments sharing a dppm ligand with a 2-phenyl-platinum interaction between aphenyl ring of the dppm ligand and one platinum center. This weak 2-phenyl-platinum interaction can be easilydisplaced by addition of ligands such as CO (giving complex 5), PPh3 (6), or p-toluidine (7). The structure of 5was determined by single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group Pn, witha = 12.259(2) Å, b = 16.375(3) Å, c = 18.851(4) Å, = 100.99(3), V = 3714.8 Å3, and Z = 2. The complexconsists of two square-planar platinum(II) fragments with the dppm ligand acting as a conventional bridge.