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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Dynamics of photoexcited Co(CO)3(NO) by 266 nm probed by femtosecond IR spectroscopy

등록일
2014년 9월 2일 14시 55분 10초
접수번호
1417
발표코드
PHYS.P-479 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
이태곤, 권다예, 임만호*
부산대학교 화학과, Korea
Nitrosyl metal complex is important in surface chemistry, biochemical systems and environmental chemistry. Its structures and excited states have been studied with laser-ablation and photolysis. Nitrosyl metal forms N-bound nitrosyl, isonitrosyl (ON), and side-on nitrosyl (η2-NO). Recently, it is known that M-N-O structure is bent when metal complex is photo-excited with 400 nm. Photochemical processes were also known in gas phase. In gas phase, nanosecond time-resolved spectroscopy was studied to understand NO-release process. We used femtosecond UV pump - mid-IR probe spectroscopy to observe the early processes of photoexcited Co(CO)3(NO) in n-hexane. We mainly observed C?O vibration regions, from 1720 cm-1 to 2150 cm-1. Based on the vibrational frequency of carbonyl or nitrosyl complex in gas phase and observed kinetics, we assigned new peaks and drew photochemical and photophysical processes up to 1 ns. Detailed dynamics of photoexcited Co(CO)3(NO) in solution by 266 nm was unveiled.

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