Recent advances in organometallic alkane and noble gas complexes
Recent advances in organometallic alkane and noble gas complexes
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DOI：
10.1351/pac-con-08-10-17
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发表时间：
2009-09-01
影响因子：
1.8
通讯作者：
George, Michael W.
中科院分区：
文献类型：
--
作者：
Calladine, James A.;Vuong, Khuong Q.;George, Michael W.
快速时间分辨红外光谱（TRIR）已被用于研究各种有机金属烷烃和稀有气体配合物在环境温度下照射金属羰基前体配合物后的反应。有机金属烷烃和氙络合物的反应性在V族、VI族和VII族之间和下方都降低，并且对于给定的金属/配体组合，烷烃和氙络合物具有类似的反应性。反应性的系统研究已经产生了长寿命的Re配合物，这使得这种配合物的特点是使用NMR光谱。本文提出了一种利用低温下的液态丙烷作为溶剂来监测这种弱配位配体与过渡金属中心相互作用的新方法。本文还综述了室温下超临界甲烷和液态乙烷溶剂中甲烷和乙烷的配位和活化的TRIR研究。
Fast time-resolved infrared (TRIR) spectroscopy has been useful for studying the reactions of a wide range of organometallic alkane and noble gas complexes at ambient temperature following irradiation of metal carbonyl precursor complexes. The reactivity of organometallic alkane and xenon complexes decreases both across and down groups V, VI, and VII, and for a given metal/ligand combination the alkane and xenon complexes have similar reactivities. Systematic studies of reactivity have produced long-lived Re complexes which have allowed such complexes to be characterized using NMR spectroscopy. A new approach using liquid propane at low temperature as a solvent to monitor the interaction of such weakly coordinating ligands with transition-metal centers is outlined. TRIR studies monitoring the coordination and activation of methane and ethane in supercritical methane and liquid ethane solvents at room temperature are also reviewed.