The temperature dependent photoswitching of a classic diarylethene monitored by in situ X-ray diffraction.

J Phys Chem A 2015 Feb 26;119(5):884-8. Epub 2015 Jan 26.

Department of Chemistry, University at Buffalo, State University of New York , Buffalo, New York 14260, United States.

Organic photochromic molecules including diarylethenes are of particular interest for their numerous potential applications including high-density optical data storage and light-activated switches. In this report, we examined the temperature dependence of the light-drive photocyclization reaction in a classic diarylethene. The steady-state populations were monitored spectroscopically and by temperature dependent in situ photocrystallography, the latter being the first reported example of this technique. The observed decrease in the steady-state population with decreasing temperature suggests this classic diarylethene possesses an excited-state potential energy surface topology similar to previously reported "inverted" diarylethenes.

Download full-text PDF

Source
http://dx.doi.org/10.1021/jp512488qDOI Listing
February 2015
7 Reads

Publication Analysis

Top Keywords

classic diarylethene
12
temperature dependent
8
populations monitored
4
diarylethene steady-state
4
monitored spectroscopically
4
steady-state populations
4
spectroscopically temperature
4
photocrystallography reported
4
situ photocrystallography
4
dependent situ
4
reaction classic
4
light-drive photocyclization
4
switches report
4
light-activated switches
4
storage light-activated
4
report examined
4
examined temperature
4
reported example
4
dependence light-drive
4
temperature
4

Similar Publications