Investigation of ultrafast energy transfer mechanism in BODIPY-Porphyrin dyad system

被引：16
作者：
Dumanogullari, Fatih Mehmet [1 ]
Tutel, Yusuf [2 ]
Kucukoz, Betul [2 ,4 ]
Sevinc, Gokhan [3 ]
Karatay, Ahmet [2 ]
Yilmaz, Halil [1 ]
Hayvali, Mustafa [1 ]
Elmali, Ayhan [2 ]
机构：
[1] Ankara Univ, Fac Sci, Dept Chem, TR-06100 Ankara, Turkey
[2] Ankara Univ, Fac Engn, Dept Engn Phys, TR-06100 Ankara, Turkey
[3] Bilecik Seyh Edebali Univ, Sci & Literature Fac, Dept Chem, TR-11230 Bilecik, Turkey
[4] Chalmers Univ Technol, Dept Chem & Chem Engn, S-41296 Gothenburg, Sweden
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2019年 / 373卷
关键词：
Borondipyrromethene; Porphyrin; Fast energy transfer; Ultrafast pump-probe spectroscopy; BORON-DIPYRROMETHENE; EFFICIENT SYNTHESIS; SUBSTITUTED BORON; BUILDING-BLOCKS; DYES; MODULATION; DESIGN; DERIVATIVES; ABSORPTION; COMPLEXES;
D O I：
10.1016/j.jphotochem.2019.01.007
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Novel beta-fused BODIPY-Porphyrin compounds that contain free base porphyrin (TPP2BDP) and its Ni(II) complex (NiTPP2BDP) were synthesized to investigate intramolecular energy transfer mechanisms of beta-fused BODIPY-porphyrin dyads and effect of the unfilled d shell metal ion on energy transfer mechanism. Fluorescence spectra of compounds exhibited that BODIPY emission was diminished upon excitation of the BODIPY unit because of the energy transfer from BODIPY to porphyrin unit. Femtosecond pump-probe spectroscopy measurements revealed that energy transfer of investigated compounds are faster than previous studies in literature. Rapid energy transfer (about 500 fs) from BODIPY to porphyrin was observed for both compounds when BODIPY unit is excited due to direct linkage of BODIPY to porphyrin unit. Intersystem crossing mechanism was also observed for the compound that contains free base porphyrin (TPP2BDP), whereas d-d transition was observed for the compound that contains metalloporphyrin (NiTPP2BDP) due to unfilled d orbital of Ni(II)ion.
引用
收藏
页码：116 / 121
页数：6
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