RATE CONSTANTS OF HYDRATED ELECTRON REACTIONS WITH ORGANIC COMPOUNDS
RATE CONSTANTS OF HYDRATED ELECTRON REACTIONS WITH ORGANIC COMPOUNDS
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DOI：
10.1021/j100788a001
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发表时间：
1964-01-01
影响因子：
--
通讯作者：
GORDON, S
中科院分区：
文献类型：
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作者：
HART, EJ;THOMAS, JK;GORDON, S
报道了一些脂肪族、芳香族和杂环化合物与水合电子反应的二级速率常数。这些常数是在无缓冲和碱性溶液中通过跟踪水合电子吸收带的衰减而测量的，这种衰减是由单个0.2-或0.4- - -使用产生的。15兆电子伏特的脉冲。电子。二级速率常数小于108 M-1 sec. 1的非反应性化合物包括含碳、氢和氧的饱和有机化合物。代表性的化合物有碳氢化合物、醇类、脂肪酸、酯类和氨基酸。不活泼的还有不饱和化合物，包括芳香衍生物，如乙烯、苯、苯胺和对苯二酚。速率常数在109到3 X 1010 M-1秒-1范围内的反应性化合物有：未水合醛、酮、含C= C或0= N的化合物、二硫化物、过氧化物、嘌呤和嘧啶杂环衍生物。
The second-order rate constants of reaction of some aliphatic, aromatic, and heterocyclic compounds with the hydrated electron are reported. These constants were measured in un-buffered and in alkaline solutions by following the decay of thehydrated electron absorption band produced by a single 0.2-or 0.4-¿ usec. pulse of 15 Mev. electrons. Unreac-tive compounds with second-order rate constants less than 108 M-1 sec.-1 include saturated organic compounds containing carbon, hydrogen, and oxygen. Representative compounds are hydrocarbons, alcohols, fatty acids, esters, and amino acids. Unreactive also are unsaturated compounds including aromatic derivatives such as ethylene, benzene, aniline, and hydroquinone. Reactive compounds with rate constants in the range of 109 to 3 X 1010 M-1 sec.-1 are: unhydrated aldehydes, ketones, compounds containing C= C or 0= N, disulfides, peroxides, and purine and pyrimidine heterocyclic derivatives.