volume 2 issue 1 pages 57-59

Energy barrier to TTC–TTT isomerisation for the merocyanine of a photochromic spiropyran

Jonathan Hobley 1
Vincenzo Malatesta 1
1
 
Great Lakes Chemical Italia, Via Maritano 26, San Donato Milanese, Italy
Publication typeJournal Article
Publication date2000-01-01
scimago Q2
wos Q2
SJR0.698
CiteScore5.3
Impact factor2.9
ISSN14639076, 14639084
Physical and Theoretical Chemistry
General Physics and Astronomy
Abstract
The 1H NMR signal of a proton of a spiropyran photomerocyanine was resolved at low temperature into two signals attributed to the two isomers, TTT and TTC. The equilibrium distribution and free energy difference between the TTT and TTC isomers were calculated to be 0.15 and 4.6±0.7 kJ mol−1, respectively. By 1H NMR lineshape analysis at various temperatures, an activation barrier for the TTC→TTT isomerisation of 43.6±3 kJ mol−1 was calculated.
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Hobley J., Malatesta V. Energy barrier to TTC–TTT isomerisation for the merocyanine of a photochromic spiropyran // Physical Chemistry Chemical Physics. 2000. Vol. 2. No. 1. pp. 57-59.
GOST all authors (up to 50) Copy
Hobley J., Malatesta V. Energy barrier to TTC–TTT isomerisation for the merocyanine of a photochromic spiropyran // Physical Chemistry Chemical Physics. 2000. Vol. 2. No. 1. pp. 57-59.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1039/a908360j
UR - https://doi.org/10.1039/a908360j
TI - Energy barrier to TTC–TTT isomerisation for the merocyanine of a photochromic spiropyran
T2 - Physical Chemistry Chemical Physics
AU - Hobley, Jonathan
AU - Malatesta, Vincenzo
PY - 2000
DA - 2000/01/01
PB - Royal Society of Chemistry (RSC)
SP - 57-59
IS - 1
VL - 2
SN - 1463-9076
SN - 1463-9084
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{2000_Hobley,
author = {Jonathan Hobley and Vincenzo Malatesta},
title = {Energy barrier to TTC–TTT isomerisation for the merocyanine of a photochromic spiropyran},
journal = {Physical Chemistry Chemical Physics},
year = {2000},
volume = {2},
publisher = {Royal Society of Chemistry (RSC)},
month = {jan},
url = {https://doi.org/10.1039/a908360j},
number = {1},
pages = {57--59},
doi = {10.1039/a908360j}
}
MLA
Cite this
MLA Copy
Hobley, Jonathan, and Vincenzo Malatesta. “Energy barrier to TTC–TTT isomerisation for the merocyanine of a photochromic spiropyran.” Physical Chemistry Chemical Physics, vol. 2, no. 1, Jan. 2000, pp. 57-59. https://doi.org/10.1039/a908360j.