Selective isomerization of cis-PtL2(1-alkenyl)2 to cis-PtL2(2-alkenyl)2 complexes

被引：14
作者：
Sivaramakrishna, Akella [1 ]
Su, Hong [1 ]
Moss, John R. [1 ]
机构：
[1] Univ Cape Town, Dept Chem, Cape Town, South Africa
来源：
ORGANOMETALLICS | 2007年 / 26卷 / 24期
关键词：
D O I：
10.1021/om0611249
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Heating the 1-alkenyl complexes cis-[Pt(1-alkenyl)(2)L-2)] [alkenyl =1-pentenyl, 1-hexenyl, 1-heptenyl, and 1-octenyl; L-2 = 1,3-bis(diphenylphosphino)propane (dppp) or 1,2-bis(diphenylphosphino)ethane (dppe)] to 100 degrees C caused a quantitative isomerization to the corresponding 2-alkenyl complexes cis-[Pt(2-alkenyl)(2)L-2]. This novel isomerization is strongly dependent on the length of the alkenyl chains as well as the nature of the ligand, L-2. The new 2-alkenyl complexes were fully characterized by analytical and spectroscopic methods. An X-ray crystal structure of cis- [Pt(2-pentenyl)(2)(dppp)] confirms this isomerization. Possible reaction mechanisms are discussed.
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页码：5786 / 5790
页数：5
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