Solvation dynamics in a solid host. Coumarin 480 in zeolite 13X

被引：36

作者：

Das, K ^{[1
]}

Sarkar, N ^{[1
]}

Das, S ^{[1
]}

Datta, A ^{[1
]}

Bhattacharyya, K ^{[1
]}

机构：

[1] INDIAN ASSOC CULTIVAT SCI, DEPT PHYS CHEM, CALCUTTA 700032, W BENGAL, INDIA

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 249卷 / 5-6期

关键词：

D O I：

10.1016/0009-2614(95)01436-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The dynamics of solvation of coumarin 480 guest molecule in supercages of a faujasite zeolite 13X is studied using picosecond time-resolved emission spectroscopy. The guest molecule exhibits a time-resolved Stokes shift in zeolite 13X. The decay of the response function, C(t), is nonexponential with the major components on a nanosecond timescale. The average solvation time is observed to be 8.13 ns. The nanosecond solvation is attributed to the self-motion of the probe solute and the motion of the sodium ions present in the zeolite host.

引用

页码：323 / 328

页数：6

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