摘要/Abstract
OsCl2（PPh3）3（1）与双齿N基配体乙二胺、取代/非取代邻苯二胺和取代/非取代1，10-菲啰啉（Phen*）在室温下反应，可分别生成锇配合物OsCl2（PPh3）2（diamine）（2~6）和OsCl2（PPh3）2（Phen*）（7~11）.研究表明，2~11作为催化剂在60℃时，以四氢呋喃（THF）/乙二醇二甲醚（DME）（体积比1：1.6）为溶剂，催化剂负载量为5 mol%的条件下，具有高效的催化氨硼烷脱氢反应活性.其中，3-甲基-邻苯二胺取代的锇配合物4催化氨硼烷脱氢活性最高，它也是目前报道的最高效的氨硼烷脱氢锇催化剂.
关键词: 锇, 配合物, 合成, 催化脱氢, 氨硼烷
Reactions of OsCl2(PPh3)3 (1) with bidentate nitrogen-based ligands at room temperature led to the formation of complexes OsCl2(PPh3)2(diamine) (2~6) and OsCl2(PPh3)2(Phen*) (7~11). Complexes 2~11 showed high activity in the catalytic dehydrogenation of ammonia borane at 60℃, in THF/DME (V:V=1:1.6) solution with the catalyst loading of 5 mol%. Among all the catalysts, compound 4 demonstrated the highest catalytic activity, which represents the most efficient osmium catalyst in catalytic dehydrogenation of ammonia borane until now.
Key words: osmium, complex, synthesis, catalytic dehydrogenation, ammonia borane
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