Binuclear Zinc Complexes with Radical-Anionic Diimine Ligands

详细信息    查看全文

• 作者：Igor L. Fedushkin ; Olga V. Eremenko ; Alexandra A. Skatova ; Alexander V. Piskunov ; Georgi K. Fukin ; Sergey Yu. Ketkov ; Elisabeth Irran ; Herbert Schumann
• 刊名：Organometallics
• 出版年：2009
• 出版时间：July 13, 2009
• 年：2009
• 卷：28
• 期：13
• 页码：3863-3868
• 全文大小：791K
• 年卷期：v.28,no.13(July 13, 2009)
• ISSN：1520-6041

文摘

The reactions of (dpp-BIAN)Zn−Zn(dpp-BIAN) (1) with PhC≡CH and of [(dpp-BIAN)Zn(μ-I)]₂ (2) with potassium hydride yield the binuclear complexes [(dpp-BIAN)Zn(μ-C≡CPh)]₂ (3) and [(dpp-BIAN)Zn(μ-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 ¹H 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.