삼브롬화안티몬과 몇몇 유기브롬화물 사이의 브롬교환반응

Abstract

니트로벤젠 및 1,2,4-트리클로로벤젠 용매중에서 삼브롬화안티몬과 몇몇 유기브롬화물 사이의 브롬교환반응속도가 방사성 Br82로 표진된 삼브롬화안티몬을 사용하여 측정되었다. 연구결과 삼브론화안티몬에 관한 교환반응의 반응차소는 그 농도에 따라 달라졌다. 즉, 삼브롬화안티몬의 농도가 진할때는 2차인 반응속도식을 딸T으며 삼브롬화안티몬의농도가 비교적 옅을 때는 1차인 반응속도식을 따랐고 유기브롬화물에 대한 교환반응의 반응차소는 두 경우 모두 1차인 반응속도식을 따랐다.

니트로벤젠 용매중에서 삼브롬화안티몬과 브롬화이소프로필 또는 브롬화이차부칠 사이의 브롬교환반응은 아주 느리거나 또는 일어나지 않는 것으로 관측 되었다.

In nitrobenzene and 1,2,4-trichlorobenzene, the rates of bromine exchange reaction of antimony tribromide with organic bromides has been mearured, using Br82 labelled antimony tribromide. The result of the study indicates that the reaction order of bromine exchange with respect to antimony tribromide varies with its concentration. At high concentration of antimony tribromide, Second order kinetics with respect to antimony tribromide has been observed, and at lower concentration of antimony tribromide, frist order kinetics. In any case of antimony tribromide concentration, first oder kinetics with respect to organicbromide has been observed.

It was observed that the bromine exchange of antimony tribromide antimony with iso-propylbromide or sec-butylbromide in nitrobenzene did not occur or quite slowly occured.

In nitrobenzene and 1,2,4-trichlorobenzene, the rates of bromine exchange reaction of antimony tribromide with organic bromides has been mearured, using Br82 labelled antimony tribromide. The result of the study indicates that the reaction order of bromine exchange with respect to antimony tribromide varies with its concentration. At high concentration of antimony tribromide, Second order kinetics with respect to antimony tribromide has been observed, and at lower concentration of antimony tribromide, frist order kinetics. In any case of antimony tribromide concentration, first oder kinetics with respect to organicbromide has been observed.

It was observed that the bromine exchange of antimony tribromide antimony with iso-propylbromide or sec-butylbromide in nitrobenzene did not occur or quite slowly occured.