| 白桐桐,王铜道.锇炔基氢化物反应性研究[J].,2021,61(5):441-447 |
| 锇炔基氢化物反应性研究 |
| Study of reactivities of osmium alkynyl hydride complexes |
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| DOI：10.7511/dllgxb202105001 |
| 中文关键词:锇金属炔基化合物金属氢化物反应性 |
| 英文关键词:osmiummetal alkynyl complexmetal hydride complexreactivity |
| 基金项目:中央高校基本科研业务费专项资金资助项目(DUT19L K39)；大连市青年科技之星项目(2019RQ135). |
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| 中文摘要: |
| 金属炔基氢化物由于同时具有金属炔基和金属氢的结构特性，在金属有机化学领域受到广泛关注．探索了锇炔基氢化物OsH(CO)(C≡CTMS)(PPh3)3(1)和OsH(CO)2(C≡CTMS)(PPh3)2(2)的反应性．经研究发现，配合物1与一氧化碳的配体取代反应得到了更具稳定性的配合物2．配合物2与三乙胺盐酸盐异构化反应得到了锇乙烯基配合物3．此外，配合物1与不同化学计量的［Cp2Fe］+［BF4］-/H2O反应分别单一地生成了配合物4与5．所有产物都得到了核磁共振谱、高分辨质谱以及X射线单晶衍射的表征．通过对锇炔基氢化物的反应性研究，得到了一系列结构稳定的锇配合物． |
| 英文摘要: |
| Metal alkynyl hydride complexes are currently given considerable attention in organometallic chemistry because of their unique structural characteristics of both metal alkynyl and metal hydride frameworks. Herein, the reactivities of osmium alkynyl hydride complexes OsH(CO)(C≡CTMS)(PPh3)3(1) and OsH(CO)2(C≡CTMS)(PPh3)2(2) are studied. It is found that complex 1 can react with CO by substitution reaction to give the more stable complex 2. Treatment of complex 2 withEt3N·HCl leads to the formation of osmium vinyl complex 3. Additionally, reactions of complex 1 and ［Cp2Fe］+［BF4］-/H2O in different ratios solely generate complexes 4 and 5, respectively. All the products are characterized by NMR spectroscopy, high resolution mass spectroscopy and single crystal X ray diffraction. A series of structural stable osmium complexes are obtained through the above study of reactivities of osmium alkynyl hydride complexes. |
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