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Probing molecular order in zeolite L inclusion compounds using two-photon fluorescence polarimetric microscopy


Gasecka, A; Dieu, L Q; Brühwiler, D; Brasselet, S (2010). Probing molecular order in zeolite L inclusion compounds using two-photon fluorescence polarimetric microscopy. Journal of Physical Chemistry. B, 114(12):4192-4198.

Abstract

We investigate the local static molecular orientational behavior in zeolite L inclusion compounds by polarimetric two-photon fluorescence microscopy. This technique, based on the polarized read-out of the signal under a tunable incident polarization state, provides refined information on molecular disorder that is not achievable using traditional fluorescence anisotropy. Moreover, the polarimetric microscopy imaging scheme permits a spatial investigation of possible heterogeneities, with a submicrometric resolution. The study performed on different fluorescent molecules inserted in zeolite L channels evidence a degree of disorder for either small or flexible structures.

Abstract

We investigate the local static molecular orientational behavior in zeolite L inclusion compounds by polarimetric two-photon fluorescence microscopy. This technique, based on the polarized read-out of the signal under a tunable incident polarization state, provides refined information on molecular disorder that is not achievable using traditional fluorescence anisotropy. Moreover, the polarimetric microscopy imaging scheme permits a spatial investigation of possible heterogeneities, with a submicrometric resolution. The study performed on different fluorescent molecules inserted in zeolite L channels evidence a degree of disorder for either small or flexible structures.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:2010
Deposited On:17 May 2010 12:29
Last Modified:05 Apr 2016 14:06
Publisher:American Chemical Society
ISSN:1520-5207
Publisher DOI:https://doi.org/10.1021/jp9116529

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