| 钌多氢化合物的低温FTIR光谱研究 |
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| 引用本文： | 刘省明,索全伶.钌多氢化合物的低温FTIR光谱研究[J].光谱学与光谱分析,1998,18(5):523-527. |
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| 作者姓名： | 刘省明 索全伶 |
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| 作者单位： | 中科院兰州化学物理研究所 |
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| 摘 要： | 在氢气氛下合成了新化合物Ｒｕ２Ｈ４（ＣＯ）２（ＰＰｈ３）４，建立了可至液氮温度的原位红外测试装置，在室温至液氮温度下进行了外多氢化合物的结构研究。发现ＲｕＴ４（ＣＯ）ＰＰｈ３）３在室温下会发生分子氢与原子氢的结构流变，Ｒｕ２Ｈ４（ＣＯ）（ＰＰｈ３）４则随温度变化而出现桥氢与端氢的结构转化现象。
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| 关 键 词： | 钌 多氢化合物 流变分子FTIR 结构 |
LOW TEMPERATURE FTIR STUDY OF THE STRUCTURE OF RUTHENIUM POLYHYDRIDES |
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| S Liu,Q Suo,Y Yin.LOW TEMPERATURE FTIR STUDY OF THE STRUCTURE OF RUTHENIUM POLYHYDRIDES[J].Spectroscopy and Spectral Analysis,1998,18(5):523-527. |
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| Authors: | S Liu Q Suo Y Yin |
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| Institution: | Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 730000 Lanzhou. |
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| Abstract: | A novel compound of Ru 2H 4(CO)(PPh 3) 4(A) is synthesized under hydrogen atmosphere.An in situ infrared apparatus which can be operated at liquid nitrogen temperarure is established.The structural conversion of RuH 4(PPh 3) 3 between dihydrogen and dihydride is observed firstly at room temperature.It is suggested that a fluxional molecule between terminal and bridged hydrogen appears in (A) with temperature changes.H 2 molecule coordinated in ruthenium complex is rather easy to be substituted by CO,N 2 and small organic molecule,this property is very important for activing molecular hydrogen and using in hydrogenation of unsaturated compounds. |
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| Keywords: | Low temperature FTIR spectroscopy Ruthenium Polyhydrides Fluxional molecule |
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