Aminotroponiminato(chloro)germylene Stabilized Copper(I) Iodide Complexes: Synthesis and Structure
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- 作者：Dhirendra Yadav ; Rahul Kumar Siwatch ; Soumen Sinhababu ; Selvarajan Nagendran
- 刊名：Inorganic Chemistry
- 出版年：2014
- 出版时间：January 6, 2014
- 年：2014
- 卷：53
- 期：1
- 页码：600-606
- 全文大小：368K
- ISSN：1520-510X
文摘
Reaction of an aminotroponiminato(chloro)germylene [(i-Bu)2ATIGeCl] (1) (ATI = aminotroponiminate) with CuI in acetonitrile afforded an aminotroponiminato(chloro)germylene stabilized copper(I) iodide complex [{(i-Bu)2ATIGeCl}2(Cu4I4)(CH3CN)2] (2) with a tetrameric distorted cubane type Cu4I4 core. The reaction of compound 1 in dichloromethane with CuI in the presence of 2 equiv of pyridine resulted in the first germylene stabilized copper(I) iodide complex [{(i-Bu)2ATIGeCl}(CuI)(C5H5N)2] (3) with a monomeric CuI core. A reaction of compound 1 with equimolar amounts of CuI and pyridine in dichloromethane resulted in a copper(I) iodide complex [{(i-Bu)2ATIGeCl}2(Cu2I2)(C5H5N)2] (4) with a dimeric Cu2I2 core. Interestingly, an interconversion between compounds 3 and 4 and conversion of compound 2 to compounds 3 and 4 under suitable conditions are also reported. The compounds 2鈥?b>4 have been characterized by multinuclear NMR spectroscopy and single-crystal X-ray diffraction studies. The copper atoms in all these complexes are tetracoordinate, and the Ge(II)鈥揅u(I) bond lengths in complexes 2, 3, and 4 are 2.341(1), 2.308(1), and 2.345(1) 脜, respectively.