| RCCo_3(CO)_9的电化学和RCCo_3(CO)_9~-的ESR谱研究 |
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| 引用本文： | 孙守恒,孟庆金,游效曾,钱钺,步修仁.RCCo_3(CO)_9的电化学和RCCo_3(CO)_9~-的ESR谱研究[J].波谱学杂志,1989(2). |
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| 作者姓名： | 孙守恒 孟庆金 游效曾 钱钺 步修仁 |
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| 作者单位： | 南京大学配位化学研究所
(孙守恒，孟庆金，游效曾，钱钺)，南京大学配位化学研究所(步修仁) |
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| 基金项目： | 国家自然科学基金委员会资助项目 |
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| 摘 要： | 本文对三种RCCo_3(CO)_9及相应的自由基进行了电化学和ESR谱研究.电化学研究表明,RCCo_3(CO)_9被还原为自由基的难易与R的性质有关,RCCo_3(CO)_9在室温下可以稳定存在.在对分子轨道对称性分析的基础上对簇合物自由基的ESR谱进行了讨论.确定了超精细偶合常数的符号和未成对电子占据轨道的性质,计算了Co的3d轨道和4s轨道的自旋密度.
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| 关 键 词： | 钴 三核羰基簇合物 循环伏安 电子自旋共振 |
THE STUDIES OF ELECTROCHEMISTRY OF RCCo_3(CO)_9 AND ESR SPECTRA OF RCCo_3 (CO)_9~- |
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| Sun Shouheng Meng Qingjin You Xiaozeng Qian Yue and Bu Xiuren.THE STUDIES OF ELECTROCHEMISTRY OF RCCo_3(CO)_9 AND ESR SPECTRA OF RCCo_3 (CO)_9~-[J].Chinese Journal of Magnetic Resonance,1989(2). |
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| Authors: | Sun Shouheng Meng Qingjin You Xiaozeng Qian Yue and Bu Xiuren |
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| Abstract: | Three kinds of RCCo3 (CO) 9 and their radicals have been studied with electrochemistry and ESR spectra. The reduction of RCCo3 (CO) 9 are related to the nature of R and RCCo3 (CO)9~- are stable at room temperature. Based on the symmetry analysis of MO, the ESR spectra of cluster radicals are discussed in detail. The sign of hyperfine coupling constant and the nature of the orbital occupied by unpaired electron are determined. Furthermore, the spin density on 3d orbital and 4s orbital of cobalt are calculated from experimental results. |
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| Keywords: | Cobalt Trinuclcar carbonyl cluster Cyclic voltammetry ESR |
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