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The primary photochemical reaction step of unsubstituted indolino-spiropyrans

URN to cite this document:
urn:nbn:de:bvb:355-epub-55391
Ernsting, N. P. ; Dick, Bernhard ; Arthen-Engeland, T.
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Date of publication of this fulltext: 05 Aug 2009 13:50


Abstract

The photochem. ring-opening of unsubstituted indolino-spiropyrans to the corresponding merocyanines in pentane, was followed by transient absorption spectroscopy. The temporal resoln. was better than 0.4 ps. During the pump pulse, an ultrafast unstructured absorption covered the entire measurement range 380-680 nm. From it emerged the structured absorption spectrum of a 1st merocyanine isomer, ...

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