Photothermal Reactions of Nitrosobenzene and Halonitrosobenzenes in Solid-state

Knežević, Anamarija and Medančić, Tina and Milovac, Srđan and Biljan, Ivana and Halasz, Ivan and Vančik, Hrvoj (2011) Photothermal Reactions of Nitrosobenzene and Halonitrosobenzenes in Solid-state. Croatica Chemica Acta, 84 (1). pp. 21-24. ISSN 0011-1643

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Abstract

Photothermal reactions of the dimers of nitrosobenzene, m-chloronitrosobenzene, and p-chloronitrosobenzene were studied in solid-state by IR spectroscopy at low temperatures and by X-ray powder diffraction. It was found for the first time that photothermal cycle (photolytic dissociation fol-lowed by thermal dimerization) could successively be performed also with Z-configured dimeric nitroso-benzene. Halonitrosobenzenes dimers with E-configuration afforded different photo behavior depending on the po-sition of halogen atom on the benzene ring: while m-halonitrosobenzenes do not dissociate under UV ir-radiation, p-chloronitrosobenzene, as well as previously studied p-bromonitrosobenzene photolyses very efficiently with recovering of the original crystal phase. Kinetics of thermal dimerization was measured in solid-state, and it was found that the reaction phase transformation occurs as a two-dimensional growth through the crystal.

Item Type: Article
Keywords: nitrosobenzenes, photothermal reactions, solid-state
Date: 2011
Subjects: NATURAL SCIENCES > Chemistry
Divisions: Faculty of Science > Department of Chemistry
Publisher: Hrvatsko kemijsko društvo
Related URLs:
Depositing User: Branka Maravic
Date Deposited: 08 May 2014 12:52
Last Modified: 09 May 2014 12:15
URI: http://digre.pmf.unizg.hr/id/eprint/1067

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