%0 Journal Article %T RELATIVISTIC EFFECTS IN CHEMICAL SHIFTS 13C NMR OF HALCOHEN-CONTAINING COMPOUNDS %A Rusakov, Y.Y. %A Rusakova, I.L. %A Krivdin, L.B. %K quantum chemical calculations of high level, relativistic effects, chemical shift, selenium- and organoclorine-compounds. %J Modern Technologies and Scientific and Technological Progress %D 2020 %N 2018 %P 1 %I Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»