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作 者:ZHAO Hai-yan LI Jing XING Yong-heng PU Zhi-feng BAI Feng-ying GE Mao-fa NIU Shu-yun
机构地区:[1]College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, P. R. China [2]Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China
出 处:《Chemical Research in Chinese Universities》2010年第5期687-692,共6页高等学校化学研究(英文版)
基 金:Supported by the National Natural Science Foundation of China(No.20771051);the Education Foundation of Liaoning Province, China(No.2007T093)
摘 要:The new self-assembly tripodal hexadentate Schiff base compound, C27H30N4O3, derived from tris(2-aminoethyl)amine(tren) with salicylaldehyde and its manganese(Ⅲ) complex [(C27H27N403)Mn].CH3OH(1) were designed and synthesized by original self-assembly reaction at room temperature in the solution of methanol. Both the compounds were characterized by elemental analysis, IR spectrometry, UV-Vis spectroscopy and X-ray single crystal diffraction. It is noteworthy that the tripodal hexadentate Schiff base ligand effectively encapsulates the manganese(Ⅲ) ion and enforces a six-coordinate geometry in complex 1 with the apical nitrogen atom of tren-Schiff base remaining unbound to the metal. It is found that there are several intra-molecular hydrogen bonds in them(C-H…O and O-H…N). In addition, quantum chemistry calculations were also performed and discussed in detail. These results are consistent with the structural analyses of them.The new self-assembly tripodal hexadentate Schiff base compound, C27H30N4O3, derived from tris(2-aminoethyl)amine(tren) with salicylaldehyde and its manganese(Ⅲ) complex [(C27H27N403)Mn].CH3OH(1) were designed and synthesized by original self-assembly reaction at room temperature in the solution of methanol. Both the compounds were characterized by elemental analysis, IR spectrometry, UV-Vis spectroscopy and X-ray single crystal diffraction. It is noteworthy that the tripodal hexadentate Schiff base ligand effectively encapsulates the manganese(Ⅲ) ion and enforces a six-coordinate geometry in complex 1 with the apical nitrogen atom of tren-Schiff base remaining unbound to the metal. It is found that there are several intra-molecular hydrogen bonds in them(C-H…O and O-H…N). In addition, quantum chemistry calculations were also performed and discussed in detail. These results are consistent with the structural analyses of them.
关 键 词:Tren-Schiffbase Crystal structure Hydrogen bond Quantum chemistry
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