Synthesize,crystal structure,heat capacities and thermodynamic properties of a potential enantioselective catalyst |
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| Authors: | Ju-Lan Zeng Sai-Bo Yu Zhong Cao Dao-Wu Yang Li-Xian Sun Ling Zhang Xiong-Fei Zhang |
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| Affiliation: | (1) Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, 410004, People’s Republic of China;(2) China Tobacco Hunan Industrial Corporation, Changsha, 410007, People’s Republic of China;(3) Materials and Thermochemistry Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China |
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| Abstract: | A new potential enantioselective catalyst derived from ferrocene, 1-{(R)-1-[(S)-2-(diphenylphosphino)ferrocenyl]ethyl}-benzimidazole (DPFEB), was prepared and its absolute structure was characterized by means of single crystal X-ray diffraction. The molar heat capacity of DPFEB was measured by means of temperature modulated differential scanning calorimetry over the temperature range of 200–530 K, and the thermodynamic functions of [H T − H 298.15] and [S T − S 298.15] were calculated. Further more, thermogravimetry experiment revealed that DPFEB exhibited a three step thermal decomposition process with the final residual of 28.7%. |
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