abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 09월 08일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Reactivity Comparison of Cobalt(III)-Peroxo and Cobalt(III)-Hydroperoxo Complexes

등록일
2015년 9월 4일 16시 21분 22초
접수번호
1326
발표코드
INOR2-7 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 10시 : 46분
발표형식
심포지엄
발표분야
무기화학 - Recent Trends in Bioinorganic Chemistry
저자 및
공동저자
신봉기, 조재흥*
대구경북과학기술원(DGIST) 신물질과학, Korea
Metal-dioxygen adducts, such as metal-peroxo and -hydroperoxo species, are key intermediates that observed in the catalytic cycles of dioxygen activation by metalloenzymes and biomimetic compounds. Previously, manganese(III)-hydroperoxo complex, [Mn(III)(TMC)(OOH)]2+ (TMC=1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane) was characterized and reactivity of this intermediate has been shown electrophilic character. In this work, using Me3-TPADP (Me3-TPADP=3,6,9-trimethyl-3,6,9-triaza-1(2,6)-pyridinacyclodecaphane) ligand, [Co(Me3-TPADP)(CH3CN)2]2+ was synthesized and characterized by various physicochemical methods. Cobalt-peroxo complex, [Co(Me3-TPADP)(O2)]+, was synthesized with H2O2 in the presence of triethylamine. Upon protonation, Co(III)-peroxo complex was converted into a Co(III)-hydroperoxo complex, [Co(Me3-TPADP)(OOH)(CH3CN)]2+. Interestingly, the Co(III)-hydroperoxo complex shows both nucleophilic and electrophilic reactivity. Nucleophilic reactivity of Co(III)-hydroperoxo complex is higher than that of Co(III)-peroxo complex.

상단으로