Excited triplet state generated from excited state intramolecular proton transfer in 2-(2′-hydroxyphenyl)benzothiazole

1992 ◽  
pp. 641-643 ◽  
Author(s):  
Shozo Tero-Kubota ◽  
Kimio Akiyama ◽  
Fusaji Shoji ◽  
Yusaku Ikegami
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Triplet State ◽  
Intramolecular Proton Transfer ◽  
Excited Triplet State ◽  
Excited Triplet

scholarly journals Thionation Induces Efficient Generation of Excited Triplet State and Singlet Oxygen: Heavy Atom-Free BODIPY Photosensitizers Based on S1(n,π*) State

2020 ◽  
Author(s):  
Wenbin Hu ◽  
XIan-Fu Zhang ◽  
Mingyu Liu
Keyword(s):  
Excited State ◽  
Quantum Yield ◽  
Triplet State ◽  
Singlet Oxygen ◽  
Efficient Method ◽  
Heavy Atom ◽  
Excited Triplet State ◽  
Excited Triplet ◽  
Efficient Generation ◽  
Π State

The attachement of SR (R is alkyl or phenyl) makes BODIPY efficiently generate excited triplet state (T<sub>1</sub>) and singlet oxygen with quantum yield up to 0.82 (compared to 0.10 of parent BODIPY). This affords an efficient method to synthesize heavy atom free photosensitizers. This efficient T<sub>1</sub> formation is because SR presence leads to a new excited state S<sub>1</sub>(n,pi*) with an energy smaller but close to the usual S<sub>1</sub>(pi,pi*) state.

scholarly journals Thionation Induces Efficient Generation of Excited Triplet State and Singlet Oxygen: Heavy Atom-Free BODIPY Photosensitizers Based on S1(n,π*) State

2020 ◽  
Author(s):  
Wenbin Hu ◽  
XIan-Fu Zhang ◽  
Mingyu Liu
Keyword(s):  
Excited State ◽  
Quantum Yield ◽  
Triplet State ◽  
Singlet Oxygen ◽  
Efficient Method ◽  
Heavy Atom ◽  
Excited Triplet State ◽  
Excited Triplet ◽  
Efficient Generation ◽  
Π State

The attachement of SR (R is alkyl or phenyl) makes BODIPY efficiently generate excited triplet state (T<sub>1</sub>) and singlet oxygen with quantum yield up to 0.82 (compared to 0.10 of parent BODIPY). This affords an efficient method to synthesize heavy atom free photosensitizers. This efficient T<sub>1</sub> formation is because SR presence leads to a new excited state S<sub>1</sub>(n,pi*) with an energy smaller but close to the usual S<sub>1</sub>(pi,pi*) state.

scholarly journals An enhanced sampling QM/AMOEBA approach: The case of the excited state intramolecular proton transfer in solvated 3-hydroxyflavone

2021 ◽  
Vol 154 (18) ◽  
pp. 184107
Author(s):  
Michele Nottoli ◽  
Mattia Bondanza ◽  
Filippo Lipparini ◽  
Benedetta Mennucci
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Enhanced Sampling

scholarly journals The development of aryl-substituted 2-phenylimidazo[1,2-a]pyridines (PIP) with various colors of excited-state intramolecular proton transfer (ESIPT) luminescence in the solid state

2016 ◽  
Vol 4 (16) ◽  
pp. 3599-3606 ◽  
Author(s):  
Toshiki Mutai ◽  
Tatsuya Ohkawa ◽  
Hideaki Shono ◽  
Koji Araki
Keyword(s):  
Excited State ◽  
Solid State ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Aryl Group ◽  
Red Emission ◽  
Wide Range

The color of ESIPT luminescence of HPIP is tuned in a wide range by the introduction of aryl group(s), and thus a series of PIPs showing blue to red emission is realized.

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