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wskk

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请大家帮我把这段话翻译成中文:
The n - p* and p - p* transitions excite AB to S1 and S2 states, respectively. The AB cis 2 trans interconversion can be controlled by irradiating at either transistion or by changing the intensity of a monochromatic source. t-AB undergoes trans - cis isomerization following both S1←S0 and S2←S0 excitation。Similarly, c-AB can be converted to t-AB by exciting into the S1 or S2 state.The sum of the quantum yields does not equal unity, which indicates multiple pathways for isomerization. In stilbene here isomerization occurs exclusively by rotation, the quantum yield for all photoinduced processes equals 1 in both cis-trans and trans-cis.
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wskk: 金币+20, 翻译EPI+1, ★★★★★最佳答案 2015-04-21 11:27:27
n - p* 转换因子和 p - p*转换因子可以分别将AB激活到S1和S2状态。通过照射任意转换因子(n - p*或者 p - p*),或者改变单色光源的强度,我们可以控制AB的顺式2反式互变现象。经过顺反异构的t-AB,会同时跟随S1←S0和S2←S0刺激因子。 与此类似,通过刺激S1或者S2状态,我们可以将c-AB转变为t-AB.由于量子产率总量并不一样,这也说明了异构化的多重不同途径。这里针对对称二苯代乙烯,其异构化作用只能通过分子旋转完成,所有光诱导过程的量子产率,不管是顺反异构还是反顺异构,都等于1。
2楼2015-04-21 09:49:13
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