Synthesis, Molecular, and Crystal Structure of 4,6-Dinitro-5,7-dichloro-2,1,3-oxadiazole-1-oxide

I. V. Galkina^a^,* (https://orcid.org/0000-0002-7899-555X), L. M. Yusupova^a (https://orcid.org/0000-0002-0214-6770), D. I. Bakhtiyarov^a (https://orcid.org/0000-0003-4213-9724), A. V. Gerasimov^a (https://orcid.org/0000-0002-5988-1012), D. R. Islamov^a (https://orcid.org/0000-0002-1865-274X), I. A. Litvinov^b, and Yu. V. Bakhtiyarova^a

^aButlerov Institute of Chemistry, Kazan (Volga Region) Federal University, Kazan, 420008 Russia

^bA. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences, Kazan, 420088 Russia

email: *vig54@mail.ru

Received 2 October, 2022

Abstract— A new convenient method for the preparation of dichlorodinitro-2,1,3-oxadiazole-1-oxide (dichlorodinitrobenzofuroxan) has been developed. Composition and structure of the prepared dichlorodinitrobenzofuroxan have been elucidated by a set of chemical, physical, and physico-chemical methods and also confirmed for the first time via single crystal X-ray diffraction analysis. Thermal stability of the compound has been investigated using a method of combined thermogravimetry and differential scanning calorimetry.

Keywords: 4,6-dinitro-5,7-dichloro-2,1,3-oxadiazole-1-oxide, 5,7-dinitro-4,6-dichloro-2,1,3-oxadiazole-1-oxide, dichlorodinitrobenzofuroxan, crystal structure, X-ray diffraction analysis

DOI: 10.1134/S1070363222120015