摘要/Abstract

以十二羰基三钌和o-PPh₂C₆H₄NR₂（R=H，Me）配体为原料，成功制备了三种新型羰基钌化合物（μ-o-PPh₂-C₆H₄NH）Ru₃（μ-H）（CO）₉（2）、（o-PPh₂C₆H₄NH）₂Ru（CO）₂（3）和（μ-o-PPh₂C₆H₄NMe₂）₂Ru（CO）₃（4）.对这三个化合物进行了核磁共振和红外谱学、元素分析和X射线单晶衍射分析表征，并对这三个化合物进行了催化性能研究.化合物2和4可催化苯甲醛加氢反应生成苯甲醇，但是3没有催化活性.从实验角度阐述了膦胺配体钌催化剂的结构与性能关联，进一步探讨了加氢催化反应失活的可能原因.
关键词: 膦胺配体羰基钌化合物, 合成与表征, 催化加氢, 结构与性能, 失活
New carbonyl ruthenium complexes (μ-o-PPh₂C₆H₄NH)Ru₃(μ-H)(CO)₉ (2), (o-PPh₂C₆H₄NH)₂Ru(CO)₂ (3) and (μ-o-PPh₂C₆H₄NMe₂)₂Ru(CO)₃ (4) have been successfully synthesized by using ruthenium carbonyl and o-PPh₂C₆H₄NR₂ (R=H, Me) ligand. The three complexes have all been characterized by NMR and IR spectroscopies, elemental analysis and X-ray crystallography. Complexes 2 and 4 could catalyze the hydrogenation of benzaldehyde into benzyl alcohol. However, complex 3 showed no activity. This study reveals a correlation between structure and catalytic property, where the possible deactivation mode for the hydrogenation reaction using the aminophosphino ruthenium catalyst is discussed in view of the experimental work.
Key words: aminophosphino ruthenium carbonyl, synthesis and characterization, catalytic hydrogenation, structure and property, deactivation


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