Ultrafast structural dynamics of photochromic indolylfulgimides studied by vibrational spectroscopy and DFT calculations

被引：37

作者：

Koller, Florian O.

Schreier, Wolfgang J.

Schrader, Tobias E.

Sieg, Arne

Malkmus, Stephan

Schulz, Christine

Dietrich, Steffen

Rueck-Braun, Karola

Zinth, Wolfgang

Braun, Markus

机构：

[1] Univ Munich, Dept Phys, D-80538 Munich, Germany

[2] Tech Univ Berlin, Inst Chem, D-10623 Berlin, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2006年 / 110卷 / 47期

关键词：

D O I：

10.1021/jp0657787

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 structural dynamics of the ring-opening reaction in a photochromic indolylfulgimide, a reversible, ultrafast photoswitch, is investigated by ultra-broadband time-resolved vibrational spectroscopy. The experimentally observed vibrational modes of the indolylfulgimide photoisomers C and E are assigned to normal modes with the help of DFT calculations. A complete evaluation of the observed vibrational dynamics including excited-state vibrational modes is used to characterize the reaction path and the cooling behavior of the photoswitch.

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页码：12769 / 12776

页数：8

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