ABSOLUTE QUANTUM YIELD FOR THE PHOTOCHEMICAL ACTIVATION OF METHANE BY EXCITED-STATE COPPER ATOMS IN SOLID METHANE
ABSOLUTE QUANTUM YIELD FOR THE PHOTOCHEMICAL ACTIVATION OF METHANE BY EXCITED-STATE COPPER ATOMS IN SOLID METHANE
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DOI：
10.1021/j100324a053
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发表时间：
1988-06-30
影响因子：
--
通讯作者：
OZIN, GA
中科院分区：
文献类型：
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作者：
PARNIS, JM;OZIN, GA
本文提出了一种计算低温固体基质中金属原子与活性分子光化学反应中原子消耗量子产率的方法。该方法仅依赖于对样品的光子吸收和金属原子耗尽的初始速率的评估，其中金属原子的初始数目是已知的。由此避免了由于金属原子再生的二次光解引起的误差。2个3P Cu原子与甲烷在固体甲烷基质中光化学反应生成CH3CuH的量子产率为0.4±0.2。
A method for evaluation of quantum yields for atom consumption in photochemical reactions of metal atoms with reactive molecules in solid low-temperature matrices is outlined. The method relies only upon the evaluation of the initial rates of photon absorption and metal atom depletion for a sample in which the initial number of metal atoms is known. Errors due to secondary photolysis in which metal atoms are regenerated are thereby avoided. The quantum yield for the photochemical reaction of 2 3P Cu atoms with methane in a solid methane matrix to form CH3CuH is found to be 0.4±0.2.