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自从1965年加拿大化学家Allen A D第一次合成了钌的氮分子配合物[Ru(NH_3)_5N_2]X_2(X=卤离子、BF_4~-、PF_6~-等)以来,氮分子配合物的研究引起人们广泛的兴趣。人们希望,通过氮分子配合物的研究,弄清生物固氮过程中固氮酶体系的催化机制,寻找合成氮的新型催化剂,逐步实现化学模拟生物固氮,最终有可能在常温常压下合成氮。20多年来,合成氮分子配合物的研究工作有了很大的发展。已发现许多过渡金属都能生成氮分子配合物。在这些配合物中,其它配体还可以是多种多样的,如卤离子、水、氨、负氢离子、取代膦、羰基、环戊二烯基等但含有卟啉环配体的氮分子配合物尚较少见。
Since 1965, Canadian chemist Allen AD synthesized the nitrogen molecular complex [Ru (NH_3) _5N_2] X_2 (X = halide ion, BF_4 ~ -, PF_6 ~ -) of ruthenium for the first time Aroused widespread interest. It is hoped that through the study of nitrogen molecular complexes, it is possible to find out the catalytic mechanism of nitrogenase system in biological nitrogen fixation and to search for a new type of catalyst for synthesizing nitrogen, to gradually realize the chemical nitrogen fixation by biological simulation and finally it is possible to synthesize nitrogen at normal temperature and pressure. For more than 20 years, research on the synthesis of nitrogen molecular complexes has been greatly developed. It has been found that many transition metals can generate nitrogen molecular complexes. Among these complexes, other ligands can also be varied, such as halide, water, ammonia, negative hydrogen ions, substituted phosphine, carbonyl, cyclopentadienyl and the like but containing nitrogen molecules of the porphyrin ring ligand Complex is still rare.