以下为句子列表：
英文: All above results show that the reaction experiences the six-member ring transition state with two-step path.
中文: 这表明该反应主要经历六元环过渡态的两步反应历程。
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英文: Short excited state lifetime and low activation energy for reactions in the excited states leave little room for manipulating the diastereomeric transition state when the photochemical reactions occur in solution.
中文: 最新的研究表明，采用含手性空间或经手性修饰的微环境可以使光化学反应的立体选择性大大提高。
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英文: The study shows that though four-member ring transition state mechanism without solvent participation could explain the reduction of p-methylcyclohexanone reasonably, the calculated ratio of enantiomers could not match the experimental result.
中文: 计算结果表明，无溶剂参与反应的四元环过渡态机理虽然能解释其还原历程，但计算所得的对映体组成与文献值相差很大。
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英文: The S_(n,π~*) state of acetone decomposes to a n→π~* excited state of acetyl radical and a ground state of methyl radical via a transition state (TS) of C_ symmetry.
中文: 该反应途经一个C_对称性的过渡态而分解为一个n→π~＊激发态的乙酰基和一个基态的甲基。
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