Preparation and Structural Characterization of 1,4-Digerma-2-buten-1,4-diylplatinum(II) Complexes and Their Reactions with Alkynes, Carbon Monoxide, and Isocyanides
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- 作者：Kunio Mochida ; Hironori Karube ; Masato Nanjo ; and Yasuhiro Nakadaira
- 刊名：Organometallics
- 出版年：2005
- 出版时间：September 26, 2005
- 年：2005
- 卷：24
- 期：20
- 页码：4734 - 4741
- 全文大小：196K
- 年卷期：v.24,no.20(September 26, 2005)
- ISSN：1520-6041
文摘
1,4-Digerma-2-buten-1,4-diylplatinum(II) complexes were prepared by treatment of a(
-ethylene)(triphenylphosphine)platinum(0) complex with (Z)-
,
-bis(dialkylgermyl)styrenes,and their structures were determined by spectroscopic analysis coupled with X-ray diffractionmethods. Thermolysis of 1,4-digerma-2-buten-1,4-diylplatinum(II) complexes afforded linearand cyclic trigermanes and a dinuclear platinum complex. The 1,4-digerma-2-buten-1,4-diylplatinum(II) complexes reacted with alkynes to give the corresponding insertion products,cyclic germyl(germylvinyl)platinum(II) species, whose structures have been determined byspectroscopic analysis. The cyclic germyl(germylvinyl)platinum(II) complexes were foundto easily liberate 1,4-digermacyclohexa-2,5-dienes and a platinum(0) complex. The reactionsof 1,4-digerma-2-buten-1,4-diylplatinum(II) complexes with carbon monoxide and isocyanidesafforded the corresponding platinum complexes containing one carbon monoxide and oneisocyanide ligand, respectively.
-ethylene)(triphenylphosphine)platinum(0) complex with (Z)-,-bis(dialkylgermyl)styrenes,and their structures were determined by spectroscopic analysis coupled with X-ray diffractionmethods. Thermolysis of 1,4-digerma-2-buten-1,4-diylplatinum(II) complexes afforded linearand cyclic trigermanes and a dinuclear platinum complex. The 1,4-digerma-2-buten-1,4-diylplatinum(II) complexes reacted with alkynes to give the corresponding insertion products,cyclic germyl(germylvinyl)platinum(II) species, whose structures have been determined byspectroscopic analysis. The cyclic germyl(germylvinyl)platinum(II) complexes were foundto easily liberate 1,4-digermacyclohexa-2,5-dienes and a platinum(0) complex. The reactionsof 1,4-digerma-2-buten-1,4-diylplatinum(II) complexes with carbon monoxide and isocyanidesafforded the corresponding platinum complexes containing one carbon monoxide and oneisocyanide ligand, respectively.