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  • 09월 04일 13시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Polarization angle scan (PAS) 2D IR spectroscopy of RDC

등록일
2009년 8월 21일 17시 26분 17초
접수번호
1565
발표코드
34P171포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅱ>
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
이경구, 조민행
고려대학교 화학과, Korea
The Two-dimensional Infrared spectroscopy (2D-IR) is to be an essential tool which reveals a molecular structure and a chemical exchange of a molecule having extremely fast motions. 2D-IR is based on heterodyned photon-echo detection. It uses four infrared laser pulses of femto-second. I developed the PAS (Polarization Angle Scan) two-dimensional infrared spectrometer which improves the conventional 2D-IR spectrometer. It uses the way of revolving the polarization angle of four infrared laser pulses. It could be possible to get new information to reveal the 3D structure of molecule in the atomic resolution. There is crucial information in cross peaks. However, because of the bigger a diagonal signal, it is not easy to measure the cross peaks separately in the many cases. Once the PAS two-dimensional infrared spectrometer is use, the signal in diagonal areas will be reduced and the resolution of spectrum could be improved by enhancing the cross peaks selectively. RDC (dicarbonylacetylacetonato rhodium) was used for verifying the PAS 2D-IR. I showed the conventional 2D-IR spectrum and the diagonal-peak-diminishing 2D-IR spectrum of RDC.

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