A Schrock-Type Germylene Complex: (η5-C5H4Et)2(PMe3)Hf=Ge(SiMetBu2)2.

A Schrock-Type Germylene Complex: (η5-C5H4Et)2(PMe3)Hf=Ge(SiMetBu2)2.
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Schrock 型甲锗烷络合物:(η5-C5H4Et)2(PMe3)Hf=Ge(SiMetBu2)2。

DOI:
10.1021/om501134a
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发表时间:
2015
期刊:
影响因子:
2.8
通讯作者:
Akira Sekiguchi
Akira Sekiguchi
中科院分区:
化学2区
文献类型:
--
作者:
Norio Nakata;Shinji Aoki;Vladimir Ya. Lee;Akira Sekiguchi

文献摘要

相似文献

稳定的第4族金属锗烯配合物(η5-C5 H4 Et)2(PMe 3)Hf·Ge(SiMetBu 2)2(2)可以通过1,1-二硫代锗烷(tBu 2 MeSi)2GeLi 2与(η5-C5 H4 Et)2 HfCl 2在甲苯中在−50 °C下反应,然后用三甲基膦处理而得到。铼-锗键距为2.6705(5)in 2,表明其双键特征,约为2.6705。比通常的Hf-Ge单键短3-7%。这种新型铪锗烯衍生物被归类为Schrock型配合物,具有负极性亲核锗中心。
The stable group 4 metal germylene complex (η5-C5H4Et)2(PMe3)HfGe(SiMetBu2)2(2) is readily available by the reaction of the 1,1-dilithiogermane (tBu2MeSi)2GeLi2with (η5-C5H4Et)2HfCl2in toluene at −50 °C, followed by treatment with trimethylphosphine. The hafnium–germanium bond distance of 2.6705(5) Å in2is indicative of its double-bond character, being ca. 3–7% shorter than the usual Hf–Ge single bonds. The novel hafnium germylene derivative is classified as a Schrock-type complex, featuring a negatively polarized nucleophilic germanium center.