| 查看: 604 | 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
二次调剂求老师收留
已经有3人回复
-
349学科化学045106求调剂，化学类都可以
已经有5人回复
-
一志愿0807 数一英一 313 有没有二轮调剂
已经有6人回复
-
求调剂，262机械专硕
已经有5人回复
-
286求调剂
已经有15人回复
-
0860004 求调剂 309分
已经有3人回复
-
材料类284调剂
已经有20人回复
-
调剂
已经有11人回复
-
考研调剂-材料类-284
已经有13人回复
-
复试调剂，一志愿郑州大学材料与化工289分
已经有13人回复
2楼2012-05-12 16:08:06
3楼2012-05-13 15:12:56
