Unexpected formation of anti-1,2-W2(SBut)2(NMe2)4 in the thiolysis of gauche-1,2-W2Cp2(NMe2)4 and W2COT(NMe2)4 with ButSH |
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| Institution: | 1. State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering and Center of Materials Analysis, Nanjing University, 22 Hankou Road, Nanjing 210093, China;2. Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, 122 Ninghai Road, Nanjing 210097, China;1. School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 151-744, Republic of Korea;2. Department of Agricultural Biotechnology, Seoul National University, Seoul 151-744, Republic of Korea;3. Department of Chemical Engineering, Pukyong National University, Busan 608-739, Republic of Korea |
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| Abstract: | Thiolysis of W2Cp2(NMe2)4 and W2COT(NMe2)4 with excess ButSH leads to cleavage of the respective carbocyclic rings from the ditungsten center and formation of the compound anti-1,2-W2(SBut)2(NMe2)4 which was characterized via a single-crystal X-ray diffraction study. This product was found to be isostructural with its dimolybdenum analogue. The compound is a prototypical ethane-like dimer having a W W bond distance of 2.3011(3) Å and thiolate ligands in an anti configuration about the WW bond. The thiolysis reactions for both dimethylamide precursors are contrasted with the results of their respective alcoholysis reactions. |
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