TY - JOUR
T1 - Time-Dependent Photodimerization of α- Trans -Cinnamic Acid Studied by Photocalorimetry and NMR Spectroscopy
AU - Panda, Tamas
AU - Naumov, Panče
N1 - Funding Information:
*E-mail: [email protected]. ORCID Pancě Naumov: 0000-0003-2416-6569 Funding This work was financially supported by New York University Abu Dhabi. Notes The authors declare no competing financial interest.
Publisher Copyright:
© 2018 American Chemical Society.
PY - 2018/5/2
Y1 - 2018/5/2
N2 - The time course of photochemical solid-state reactions is routinely monitored by using spectroscopic methods such as NMR or IR spectroscopies, but is comparatively less investigated with thermal methods. In this work, a combination of thermal methods (thermogravimetric analysis and differential scanning calorimetry) was applied together with irradiation with UV light to quantify the conversion and monitor the progress of a well-known photochemical reaction, the [2 + 2] dimerization of trans-cinnamic acid, and the results are compared with the conversion determined by using 1H NMR spectroscopy. The conversion was correlated with thermodynamic parameters for the reactant such as molar enthalpy, entropy, and melting temperature.
AB - The time course of photochemical solid-state reactions is routinely monitored by using spectroscopic methods such as NMR or IR spectroscopies, but is comparatively less investigated with thermal methods. In this work, a combination of thermal methods (thermogravimetric analysis and differential scanning calorimetry) was applied together with irradiation with UV light to quantify the conversion and monitor the progress of a well-known photochemical reaction, the [2 + 2] dimerization of trans-cinnamic acid, and the results are compared with the conversion determined by using 1H NMR spectroscopy. The conversion was correlated with thermodynamic parameters for the reactant such as molar enthalpy, entropy, and melting temperature.
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U2 - 10.1021/acs.cgd.7b01409
DO - 10.1021/acs.cgd.7b01409
M3 - Article
AN - SCOPUS:85046429812
SN - 1528-7483
VL - 18
SP - 2744
EP - 2749
JO - Crystal Growth and Design
JF - Crystal Growth and Design
IS - 5
ER -