期刊
INORGANIC CHEMISTRY
卷 53, 期 11, 页码 5486-5493出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic500114k
关键词
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资金
- University of Auckland Postgraduate Scholarship
- University of Auckland Faculty of Science
- Research Council of Norway
- Norwegian Supercomputing Program (NOTUR) [NN4654K]
- South African National Research Foundation
- Central Research Fund of the University of the Free State, Bloemfontein
- Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
The first example of a diboryl corrole complex, [(BF2)(2)(Br8T(4-F-P)C)](-) (Br8T(4-F-P)C = trianion of 2,3,7,8,12,13,17,18-octabromo-5,10,15-tris(4-fluorophenyl)corrole), has been isolated using the strongly electron-withdrawing and sterically crowded triaryl octabromocorrole ligand. Density functional theory (DFT) calculations show that the hydrolysis reaction producing the partially hydrolyzed complexes [B2OF2(Cor)](-) is more favored for the less sterically crowded triaryl corrole complexes. Monoboryl complexes BF2(H(2)Cor) (Cor = trianions of 5,10,15-triphenylcorrole (TPC), 5,10,15-tris(4-methylphenyl)corrole (T(4-CH3-P)C), 5,10,15-tris(4-trifluoromethylphenyl)corrole (T(4-CF3-P)C), and 5,10,15-tris-(pentafluorophenyl)corrole (TPFPC)) were prepared and characterized. The experimental data are consistent with an out-of-plane dipyrrin coordination mode for these complexes, and DFT optimizations suggest that internal BF center dot center dot center dot HN hydrogen bonding may be significant in stabilizing these complexes. Further examples of the anionic diboron corrole [B2OF2(Cor)](-) containing the electron-withdrawing 5,10,15-tris(pentafluorophenyl)corrole (TPFPC) and the sterically hindered 10-(4-methoxyphenyl)-5,15-dimesitylcorrole (Mes(2)(4-MeOP)C) trianions are reported.
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