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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Cyclodehydrogenation reactions to cyclopentafused polycyclic aromatic hydrocarbons
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Cyclodehydrogenation reactions to cyclopentafused polycyclic aromatic hydrocarbons

机译:环戊氢化的多环芳烃的环十二氢化反应

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摘要

B3LYP/6-31G(d,p) electronic structure calculations are employed to elucidate the reaction mechanisms for the conversion of the alternant C18H12 polycyclic aromatic hydrocarbon benzo[c]phenanthrene into the nonalternant C18H10 PAHs cyclopenta[cd]pyrene and benzo[ghi]fluoranthene. Isomerization reactions such as 5/6-ring switching and hydrogen atom scrambling are analyzed. Bay region chemistry, involving the rupture of one benzene ring followed by the formation of a new five-membered ring, is also studied, together with the mechanism for the formation of an aryne. The rearrangement of the latter yields annelated cyclopenta-dienylidenecarbene, which is then trapped intramolecularly.
机译:B3LYP / 6-31G(d,p)电子结构计算用于阐明将交替的C18H12多环芳烃苯并[c]菲转化为非替代的C18H10 PAHs环戊[cd] py和苯并[ghi]的反应机理荧蒽。分析了异构化反应,例如5/6环切换和氢原子加扰。还研究了湾区化学,包括一个苯环的断裂,然后形成一个新的五元环,以及形成芳烃的机理。后者的重排产生了退火的环戊二烯二烯,然后被分子内捕获。

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