Unprecedented alkene complex of zinc(II): structures and bonding of divinylzinc complexes.
Unprecedented alkene complex of zinc(II): structures and bonding of divinylzinc complexes.
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DOI：
10.1021/ja058700x
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发表时间：
2006-04
影响因子：
15
通讯作者：
A. Wooten;P. Carroll;A. Maestri;P. Walsh
中科院分区：
文献类型：
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作者：
A. Wooten;P. Carroll;A. Maestri;P. Walsh
本报告描述了一系列的二乙烯基锌配合物，其中之一代表唯一的结构特征的锌（II）的π-配合物的固态结构。合成了乙烯基锌试剂Zn[C（Me）= CH_2]_2（1）和Zn[C（H）= CMe_2]_2（2），分离得到白色结晶固体，产率分别为66%和72%。每种化合物在固态下通过一系列锌-π（1）和锌-σ-键合（2）桥接相互作用表现出无限的聚合物结构。将螯合配体添加到这些二乙烯基锌化合物中允许分离单体加合物（bipy）Zn[C（Me）= CH 2]2（1.bipy）、（tmeda）Zn[C（Me）= CH 2]2（1*tmeda）、（bipy）Zn[C（H）= CMe 2]2（2*bipy）和（tmeda）Zn[C（H）= CMe 2]2（2*tmeda），其中1*bipy、2*bipy和2*tmeda已被晶体学表征。
This report describes the solid-state structures of a series of divinylzinc complexes, one of which represents the only structurally characterized zinc(II) pi-complex. Vinylzinc reagents, Zn[C(Me)=CH2]2 (1) and Zn[C(H)=CMe2]2 (2), have been synthesized and isolated as white crystalline solids in 66 and 72% yield, respectively. Each compound exhibits an infinite polymeric architecture in the solid state via a series of zinc-pi (1) and zinc-sigma-bonded (2) bridging interactions. Addition of chelating ligands to these divinylzinc compounds allowed isolation of the monomeric adducts (bipy)Zn[C(Me)=CH2]2 (1.bipy), (tmeda)Zn[C(Me)=CH2]2 (1*tmeda), (bipy)Zn[C(H)=CMe2]2 (2*bipy), and (tmeda)Zn[C(H)=CMe2]2 (2*tmeda), of which 1*bipy, 2*bipy, and 2*tmeda have been characterized crystallographically.