TY JOUR TI THE ORETICAL STUDY OF THE REACTION MECHANISM 3-CHLOROPROPINE-1 WITH 1,3-POTASSIUM PROPANDITHIOLATE IN THE SYSTEM HYDRAZINE HYDRATE-KON KW reaction mechanisms KW nucleophilic substitution KW electron density functional theory KW B3LYP KW CCSD(T) KW 1,4-dithiepine KW 4,8-dithiaundecadiine-2,9 JO Bulletin of the Angarsk State Technical University AU Chirkina, E.A. PY 2023 IS 1 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»