期刊
DALTON TRANSACTIONS
卷 40, 期 14, 页码 3510-3516出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0dt01648a
关键词
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资金
- National Natural Science Foundation of China [20771001, 20775001, 20875001]
- Education Department of Anhui Province [KJ2010A030]
- Program for New Century Excellent Talents in University (China) [NECT-07-0002]
- Foundation of Scientific Innovation team of Anhui Province [2006KJ007TD]
One novel bisferrocene pyrazole derivative, bis [2-(5-trifluoromethyl-3-ferrocenyl) pyrazolyl] methane (abbreviated as (3)), was synthesized and fully characterized. A single crystal of (3) was obtained and solved by X-ray diffraction analysis. The bisferrocene derivative exhibits MLCT (metal to ligand charge transfer) and pi ->pi* transitions in the UV-visible range, which have been verified by density functional theory (DFT) calculations. Its electrochemical properties were studied with the aid of cyclic voltammetry (CV), differential pulse voltammetry (DPV) and rapid scan time-resolved Fourier transform infrared spectroscopy (RS-TRS FT-IR) analysis. Furthermore, the electrochemical mechanism was elucidated based on the results from the cyclic voltabsorptometry (CVA) determination technique. (3) apparently shows a single wave in the cyclic voltammetric experiments which indicates there is no intermediate, however, the intermediate of (3) was observed by employing the RS-TRS FT-IR spectroelectrochemistry technique. The detailed investigation brought us safely to the conclusion that the methylene can also act as a linker, leading to electronic communication in either D-pi-D and A-pi-A systems.
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