Thermal reactivity of cis- and trans-bis(triphenylgermyl)bis(tertiary phosphine)platinum(II)

被引：9

作者：

Mochida, Kunio

Fukushima, Takashi

Suzuki, Michiko

Hatanaka, Wakako

Takayama, Mariko

Usui, Yoko

Nanjo, Masato

Akasaka, Kuniyoshi

Kudo, Takako

Komiya, Sanshiro

机构：

[1] Gakushuin Univ, Fac Sci, Dept Chem, Toshima Ku, Tokyo 1718588, Japan

[2] Gunma Univ, Fac Engn, Dept Fundamental Studies, Kiryu, Gunma 3768515, Japan

[3] Tokyo Univ Agr & Technol, Fac Grad Sch Engn, Dept Appl Chem, Koganei, Tokyo 1848588, Japan

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2007年 / 692卷 / 1-3期

关键词：

bis(triphenylgermyl)bis(phenyldimethylphosphine)platinum(II); cis-trans isomerization; phenyl migration; diphenylgermylene; X-ray diffraction;

D O I：

10.1016/j.jorganchem.2006.05.065

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The complex cis-Pt(Ph3Ge)(2)(PMe2Ph)(2) underwent smooth isomerization to give the trans-isomer at room temperature via an associative five-coordinated intermediate. Thermodynamic parameters and activation energy for the cis to trans isomerization were obtained, Delta H-# = 105 kJ mol(-1), Delta S-# = 12.5 J mol(-1) K-1, and Ea = 107 kJ mol(-1), respectively. Heating of trans-Pt(Ph3Ge)(2)(PMe2Ph)(2) at 50 degrees C for 36 days produced trans-PtPh(Ph3Ge)(PMe2Ph)(2) followed by the formation of trans-PtPh2(PMe2Ph)(2), Pt(PMe2Ph)(4), and Ph4Ge finally via elimination of the phenyl group from Ph3Ge ligand with liberation of the Ph2Ge unit and subsequent reductive elimination of the remaining Ph3Ge ligand at 80 degrees C for 1 month. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：395 / 401

页数：7

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