(1)L(A)-(1)L(B) COUPLING IN THE EXCITED-STATE OF 3-METHYLINDOLE AND ITS POLAR CLUSTERS
(1)L(A)-(1)L(B) COUPLING IN THE EXCITED-STATE OF 3-METHYLINDOLE AND ITS POLAR CLUSTERS
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DOI：
10.1021/j100100a007
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发表时间：
1994-12-08
影响因子：
--
通讯作者：
WALLACE, SC
中科院分区：
文献类型：
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作者：
DEMMER, DR;LEACH, GW;WALLACE, SC
研究了3-甲基吲哚的激发态动力学，目的是进一步表征在激发态中引起(1)L(a)-(1)L(b)混合的非绝热相互作用。裸分子及其极性分子簇都显示出这两种紧密状态之间耦合的证据。通过使用一系列连续更极性的配体，表明(1)L(b)和(1)L(a)态之间的相互作用强度可以“调谐”，从而允许观察激发态行为的渐进变化。这使我们能够将目前的结果与以前在这个实验室和其他一些实验室进行的研究联系起来。虽然这些都集中在测量一个特定的激发态现象作为(1)L(a)态耦合的特征，但这里给出的结果用于展示如何将它们成功地集成到吲哚中(1)L(a)-(1)L(b)态耦合的更一般的图像中。
The excited state dynamics of 3-methylindole are investigated with the goal of further characterizing the nonadiabatic interaction giving rise to (1)L(a)-(1)L(b) mixing in its excited singlet state. Both the bare molecule and its clusters with polar species display evidence of coupling between these two close-lying states. By using a series of successively more polar ligands, it is shown that the strength of the interaction between the (1)L(b) and (1)L(a) states can be ''tuned'', permitting the observation of progressive changes in excited state behavior. This enables us to relate the present results to previous studies conducted in this and a number of other laboratories. While each of these has concentrated on the measurement of a particular excited state phenomenon as a signature of (1)L(a) state coupling, the results presented here are used to show how they can be successfully integrated into a more general picture of (1)L(a)-(1)L(b) state coupling in indoles.