Time-Dependent Photodimerization of α- Trans -Cinnamic Acid Studied by Photocalorimetry and NMR Spectroscopy

Tamas Panda, Pance Naumov

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)2744-2749
Number of pages6
JournalCrystal Growth and Design
Volume18
Issue number5
DOIs
StatePublished - May 2 2018

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Nuclear magnetic resonance spectroscopy
nuclear magnetic resonance
acids
Dimerization
Acids
Photochemical reactions
Solid state reactions
Ultraviolet radiation
spectroscopy
Melting point
Thermogravimetric analysis
Differential scanning calorimetry
Infrared spectroscopy
Enthalpy
Entropy
Irradiation
Thermodynamics
dimerization
photochemical reactions
heat measurement

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Time-Dependent Photodimerization of α- Trans -Cinnamic Acid Studied by Photocalorimetry and NMR Spectroscopy. / Panda, Tamas; Naumov, Pance.

In: Crystal Growth and Design, Vol. 18, No. 5, 02.05.2018, p. 2744-2749.

Research output: Contribution to journalArticle

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