Journal
INORGANIC CHEMISTRY
Volume 53, Issue 1, Pages 600-606Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic402742f
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Funding
- University Grants Commission (UGC)-New Delhi
- Council of Scientific and Industrial Research (CSIR)-New Delhi, India
- Department of Science and Technology (DST)-New Delhi, India [SR/S1/IC-23/2008]
- DST-FIST
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Reaction of an aminotroponiminato(chloro)germylene [(i-Bu)(2)ATIGeCl] (1) (ATI = aminotroponiminate) with CuI in acetonitrile afforded an aminotroponiminato(chloro)germylene stabilized copper(I) iodide complex [{(i-Bu)(2)ATIGeCl}(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)(2)ATIGeCl}(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)(2)ATIGeCl}(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 2-4 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)-Cu(I) bond lengths in complexes 2, 3, and 4 are 2.341(1), 2.308(1), and 2.345(1) angstrom, respectively.
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