Wydział Chemii

Magdalena Pagacz-Kostrzewa

Magdalena Sałdyka

Wioletta Gul

Maria Wierzejewska

Dmytro M. Khomenko

Roman O. Doroschuk

2019

Journal of Photochemistry and Photobiology A-Chemistry

371

292-299

10.1016/j.jphotochem.2018.11.031

Naukowa

Angielski

Artykuł

A combined FTIR matrix isolation and theoretical B3LYP/6-311++G(2d,2p) study of 2-(tetrazol-5-yl)benzoic acid isolated in solid nitrogen was performed. Out of fifteen stable isomers of this molecule located on the singlet potential energy surface the most stable one, comprising the intramolecular NH⋯O hydrogen bond, was detected experimentally in nitrogen matrices after deposition. Upon irradiation with λ = 305 nm a new conformer of the precursor was generated and upon λ = 280 nm radiation a reverse photorotamerization reaction was induced. Simultaneously with the photoisomerizations, a cleavage of the tetrazole ring with dinitrogen elimination was observed proceeding with a very small rate and leading to formation of a carbodiimide derivative.

FTIR, matrix isolation, Potential energy surface, Isomers, azoles

http://doi.org/10.1016/j.jphotochem.2018.11.031

http://www.elsevier.com