Binuclear Zinc Complexes with Radical-Anionic Diimine Ligands
Binuclear Zinc Complexes with Radical-Anionic Diimine Ligands
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DOI：
10.1021/om900291x
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发表时间：
2009-07-13
期刊：
影响因子：
2.8
通讯作者：
Schumann, Herbert
中科院分区：
文献类型：
--
作者：
Fedushkin, Igor L.;Eremenko, Olga V.;Schumann, Herbert
（dpp-BIAN）Zn-Zn（dpp-BIAN）（1）与PhC CH反应，[（dpp-BIAN）Zn（mu-I）]（2）（2）与KH_4反应，分别得到双核配合物[（dpp-BIAN）Zn（mu-C CPh）]（2）（3）和[（dpp-BIAN）Zn（mu-H）]（2）（4）（dpp-BIAN = 1，2-bis[（2，6-diisopropylphenyl）imino] acenaphthene）。配合物3也通过[dpp-BIAN（H）]Zn-（CCPh）（5）的热脱氢获得，其又可以通过使ZnI 2与等摩尔量的[dpp-BIAN（H）]Na和PhCCNa反应来制备。顺磁性化合物3和4的结构由ESR谱表征，抗磁性化合物5的结构由H-1 NMR谱表征。用单晶X射线衍射法测定了3和4的分子结构。用密度泛函理论研究了配合物4的电子结构。
The reactions of (dpp-BIAN)Zn-Zn(dpp-BIAN) (1) with PhC CH and of [(dpp-BIAN)Zn(mu-I)](2) (2) with potassium hydride yield the binuclear complexes [(dpp-BIAN)Zn(mu-C CPh)](2) (3) and [(dpp-BlAN)Zn(mu-H)](2) (4), respectively (dpp-BIAN = 1,2-bis[(2,6-diisopropylphenyl)imino] acenaphthene). Complex 3 is also obtained by thermal dehydrogenation of [dpp-BIAN(H)]Zn-(C CPh) (5), which in turn can be prepared by reacting ZnI2, with equimolar amounts of [dpp-BIAN(H)]Na and PhC CNa. The paramagnetic compounds 3 and 4 have been characterized by ESR spectroscopy; the diamagnetic complex 5, by H-1 NMR spectroscopy. The molecular structures of 3 and 4 have been determined by single-crystal X-ray diffraction. The electronic structure of complex 4 has been examined by DFT.