| 查看: 557 | 回复: 2 | |||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | |||
[求助]
荧光方面的翻译英译汉
|
|||
|
Discussion A general trend which appears evident in the data is that radiative and radiationless rate constants increase as the polarity of the solvent increases. If the increasing radiationless process is intersystem crossing to the triplet then more phosphorescence is expected in polar solvents. On the other hand, if the increasing ratiationless process is internal conversion, Le., S1 -+ So, then more phosphorescence is expected in nonpolar solvents. The fact that the fluorescence yield generally increases in more polar solvents is readily accounted for by the increasing value of k ~Fu. rt hermore, the observation that the phosphorescence of these molecules is present in polar solvents, but absent in nonpolar solvents such as methylcyclohexane strongly suggests that the radiationless mode which exhibits enhancement in polar solvents is intersystem crossing. Thus the observation that $JF and $Jp increase with solvent polarity suggests that hi, (internal conversion) becomes less important or alternatively that hi, is approximately constant at-4 X lo7 s-l, i.e., in cyclohexane h& ki, since intersystem crossing is unimportant. |
回复此楼» 猜你喜欢
全日制（定向）博士
已经有5人回复
-
假如你的研究生提出不合理要求
已经有10人回复
-
萌生出自己或许不适合搞科研的想法，现在跑or等等看？
已经有4人回复
-
Materials Today Chemistry审稿周期
已经有4人回复
-
参与限项
已经有3人回复
-
实验室接单子
已经有4人回复
-
对氯苯硼酸纯化
已经有3人回复
-
求助:我三月中下旬出站，青基依托单位怎么办？
已经有12人回复
-
所感
已经有4人回复
-
要不要辞职读博？
已经有7人回复
2楼2012-05-12 16:08:06
3楼2012-05-13 15:12:56