Reactivity of Cyclopentadienes Modified by Bis（3,5- dimethylpyrazol-l-yl）methyl Group to W（CO）5THF  

作　　者：张晓燕 刘霞丽 宋海斌 唐良富 

机构地区：[1]Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tiarajin 300071, China

出　　处：《Chinese Journal of Chemistry》2011年第12期2702-2706,共5页中国化学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China （No. 20672059）.

摘　　要：The reactions of the mixture of 1- and 2-[2,2-bis（3,5-dimethylpyrazol-l-yl）-1-phenylethyl]-1,3-cyclopentadiene （bpzpcpH） and mixture of 1- and 2-[2,2-bis（3,5-dimethylpyrazol-l-yl）-I,l-diphenylethyl]-l,3-cyclopentadiene （bpzdpcpH） with W（CO）sTHF have been carried out. The former yields complex （bpzpcpH）W（CO）4, in which the bpzpcpH acts as a k2-（N,N） bidentate ligand, and the cyclopentadiene moiety does not participate in the coordination to the tungsten atom. While the latter gives complex （bpzdpcpH）W（CO）3, in which the cyclopentadiene moiety coordinates to the tungsten atom in η2-fashion instead of general η5-coordinated mode, causing bpzdpcpH to act as a tridentate k3-（π,N,N） ligand,The reactions of the mixture of 1- and 2-[2,2-bis（3,5-dimethylpyrazol-l-yl）-1-phenylethyl]-1,3-cyclopentadiene （bpzpcpH） and mixture of 1- and 2-[2,2-bis（3,5-dimethylpyrazol-l-yl）-I,l-diphenylethyl]-l,3-cyclopentadiene （bpzdpcpH） with W（CO）sTHF have been carried out. The former yields complex （bpzpcpH）W（CO）4, in which the bpzpcpH acts as a k2-（N,N） bidentate ligand, and the cyclopentadiene moiety does not participate in the coordination to the tungsten atom. While the latter gives complex （bpzdpcpH）W（CO）3, in which the cyclopentadiene moiety coordinates to the tungsten atom in η2-fashion instead of general η5-coordinated mode, causing bpzdpcpH to act as a tridentate k3-（π,N,N） ligand,

关 键 词：cyclopentadienyl ligands bis（pyrazol-1-yl）methanes heteroscorpionate TUNGSTEN 

分 类 号：O641.4[理学—物理化学] TQ325.1[理学—化学]