Highly Efficient Triplet−Triplet Intramolecular Energy Transfer and Enhanced Intersystem Crossing in Rigidly Linked Copper(II) Porphyrin−Free Base Porphyrin Hybrid Dimers

1999 ◽  
Vol 38 (10) ◽  
pp. 2303-2311 ◽  
Author(s):  
Motoko Asano-Someda ◽  
Youkoh Kaizu
Keyword(s):  
Energy Transfer ◽  
Intersystem Crossing ◽  
Intramolecular Energy Transfer ◽  
Free Base ◽  
Highly Efficient

Intramolecular energy transfer and photoisomerization in stilbene dendrimers

2017 ◽  
Vol 95 (9) ◽  
pp. 1013-1023 ◽  
Author(s):  
Masahiro Taima ◽  
Yuka Ishida ◽  
Tatsuo Arai
Keyword(s):  
Energy Transfer ◽  
Energy Harvesting ◽  
Photophysical Properties ◽  
Intersystem Crossing ◽  
Intramolecular Energy Transfer ◽  
The Core ◽  
Transfer Processes ◽  
Trans Isomerization ◽  
Photophysical Processes ◽  
In Cis

Stilbene dendrimers with energy harvesting chromophores, such as naphthalene and benzophenone, have been prepared and their photochemical and photophysical properties have been examined. These dendrimers underwent trans–cis mutual photoisomerization on excitation of the core stilbene or the peripheral naphthalene and benzophenone chromophores through several energy transfer processes, and photophysical processes such as intersystem crossing finally resulted in cis-trans isomerization of the core stilbene.

Intramolecular Energy Transfer in Molecular Dyads Comprising Free-base Porphyrin and Ruthenium(II) Bis(2,2‘:6‘,2‘ ‘-terpyridine) Termini

2004 ◽  
Vol 108 (42) ◽  
pp. 9026-9036 ◽  
Author(s):  
Andrew C. Benniston ◽  
Glen M. Chapman ◽  
Anthony Harriman ◽  
Maryam Mehrabi
Keyword(s):  
Energy Transfer ◽  
Intramolecular Energy Transfer ◽  
Free Base ◽  
Molecular Dyads

scholarly journals Highly Efficient Photolabile Protecting Groups with Intramolecular Energy Transfer

2006 ◽  
Vol 45 (18) ◽  
pp. 2975-2978 ◽  
Author(s):  
Dominik Wöll ◽  
Julia Smirnova ◽  
Wolfgang Pfleiderer ◽  
Ulrich E. Steiner
Keyword(s):  
Energy Transfer ◽  
Protecting Groups ◽  
Intramolecular Energy Transfer ◽  
Highly Efficient ◽  
Photolabile Protecting Groups

Bodipy-squaraine triads: Preparation and study of the intramolecular energy transfer, charge separation and intersystem crossing

2017 ◽  
Vol 147 ◽  
pp. 560-572 ◽  
Author(s):  
Yu Dong ◽  
Alessandro Iagatti ◽  
Paolo Foggi ◽  
Jianzhang Zhao ◽  
Gloria Mazzone ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Charge Separation ◽  
Intersystem Crossing ◽  
Intramolecular Energy Transfer

Intramolecular Energy Transfer in a Covalently Linked Copper(II) Porphyrin−Free Base Porphyrin Dimer:  Novel Spin Polarization in the Energy Acceptor

1999 ◽  
Vol 103 (34) ◽  
pp. 6704-6714 ◽  
Author(s):  
Motoko Asano-Someda ◽  
Art van der Est ◽  
Uwe Krüger ◽  
Dietmar Stehlik ◽  
Youkoh Kaizu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Spin Polarization ◽  
Intramolecular Energy Transfer ◽  
Free Base ◽  
Covalently Linked ◽  
Porphyrin Dimer ◽  
Energy Acceptor

Synthesis, photoluminescence features with intramolecular energy transfer and Judd–Ofelt analysis of highly efficient europium(III) complexes

2016 ◽  
Vol 27 (12) ◽  
pp. 12506-12516 ◽  
Author(s):  
Rekha Devi ◽  
Mandeep Dalal ◽  
Manju Bala ◽  
S. P. Khatkar ◽  
V. B. Taxak ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Intramolecular Energy Transfer ◽  
Highly Efficient

Delocalized Excitation or Intramolecular Energy Transfer in Pyrene Core Dendrimers

2021 ◽  
pp. 7717-7725
Author(s):  
Dayujia Huo ◽  
Minjie Li ◽  
Zujin Zhao ◽  
Xian Wang ◽  
Andong Xia ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Intramolecular Energy Transfer

scholarly journals Ultrafast Electron/Energy Transfer and Intersystem Crossing Mechanisms in BODIPY-Porphyrin Compounds

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 312
Author(s):  
Yusuf Tutel ◽  
Gökhan Sevinç ◽  
Betül Küçüköz ◽  
Elif Akhuseyin Yildiz ◽  
Ahmet Karatay ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Fluorescence Spectra ◽  
Visible Region ◽  
Energy Transfer Mechanism ◽  
Free Base ◽  
Pump Probe ◽  
Harvesting Efficiency ◽  
Probe Spectroscopy ◽  
Absorption Features ◽  
Transfer Mechanisms

Meso-substituted borondipyrromethene (BODIPY)-porphyrin compounds that include free base porphyrin with two different numbers of BODIPY groups (BDP-TTP and 3BDP-TTP) were designed and synthesized to analyze intramolecular energy transfer mechanisms of meso-substituted BODIPY-porphyrin dyads and the effect of the different numbers of BODIPY groups connected to free-base porphyrin on the energy transfer mechanism. Absorption spectra of BODIPY-porphyrin conjugates showed wide absorption features in the visible region, and that is highly valuable to increase light-harvesting efficiency. Fluorescence spectra of the studied compounds proved that BODIPY emission intensity decreased upon the photoexcitation of the BODIPY core, due to the energy transfer from BODIPY unit to porphyrin. In addition, ultrafast pump-probe spectroscopy measurements indicated that the energy transfer of the 3BDP-TTP compound (about 3 ps) is faster than the BDP-TTP compound (about 22 ps). Since the BODIPY core directly binds to the porphyrin unit, rapid energy transfer was seen for both compounds. Thus, the energy transfer rate increased with an increasing number of BODIPY moiety connected to free-base porphyrin.

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