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  • 02월 19일 10시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

대한화학회 제121회 학술발표회 및 총회 Planar Bridging Ligand Effect on Excited-State Properties of Ir(III)-Pt(II) Bimetallic Complexes

등록일
2018년 2월 7일 13시 50분 44초
접수번호
4949
발표코드
INOR.P-152 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 19일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Inorganic Chemistry
저자 및
공동저자
Hyun Wook Cha, So-Yoen Kim, Chul Hoon Kim, Sang Ook Kang, Ho-Jin Son*
Department of Advanced Materials Chemistry, Korea University, Korea
Photodynamic behaviors in Ir(III)-Pt(II) bimetallic complex were differentiated by changing bridging ligand that connect the two metal centers: twisted co-planar (2,3-bis(2-pyridyl)pyrazine, dpp) and fully-planar moiety (4,7-phenanthrolino-5,6:5',6'-pyrazine, ppz). In particular, low-energy excitation (530 nm) makes a clear distinction between photo-induced electron transfer (PET) and hole transfer (PHT) after photo-excitation of bimetallic complex that otherwise would not be able to be achieved under high excitation beam energy. The PHT process was only observed in (dfppy)2Ir-dpp-PtCl. The fast quenching process occurring in the Ir-3MLCT state of (dfppy)2Ir-dpp-PtCl was further investigated by time-resolved photoluminescence (TRPL) and femtosecond transient absorption (TA) spectroscopy.

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