An unexpected tetranuclear Li2Cr2 trimethylsilylacetylide complex bridged by two μ3-pyrazolates  

作　　者：WANG Feng CAO Li LIAO HongLin JIANG Jun JIA XiaoLu GAO Qian LI DongFeng 

机构地区：[1]Key Laboratory of Pesticide and Chemical Biology of Ministry of Education

出　　处：《中国科学:化学》2012年第6期888-888,共1页SCIENTIA SINICA Chimica

摘　　要：A tetranuclear Li2Cr2 acetylide precursor complex, [Li(Tp)CrIII(C≡CSiMe3)2(μ_3-pz)]2·(n-pentane)2 (Tp=hydridotris(pyrazolyl)borate, pz = pyrazolate) (1) has been synthesized and characterized. The X-ray structure analysis shows that the complex contains a Li2Cr2 core bridged by two μ_3-pyrazolates. The magnetic data exhibit the existence of weak antiferromagnetic interaction in the cluster.A tetranuclear Li2Cr2 acetylide precursor complex, [Li(Tp)Cr^Ⅲ(C≡CSiMe3)2(μ3-pz)]2(n-pentane)2 (Tp = hydridotris(pyrazolyl)borate, pz = pyrazolate) (1) has been synthesized and characterized. The X-ray structure analysis shows that the complex contains a Li2Cr2 core bridged by two/.μ3-pyrazolates. The magnetic data exhibit the existence of weak antiferromagnetic interaction in the cluster.

关 键 词：四核 桥接 反铁磁相互作用 结构分析 X-射线 正戊烷 数据表 吡唑 

分 类 号：O621.3[理学—有机化学]