Determination of the quantum yield of the intersystem crossing to the triplet state of rhodamine 6G by sensitized phosphorescence

1977 ◽  
Vol 26 (6) ◽  
pp. 812-814 ◽  
Author(s):  
N. I. Kunavin ◽  
R. N. Nurmukhametov
Keyword(s):  
Quantum Yield ◽  
Triplet State ◽  
Rhodamine 6G ◽  
Intersystem Crossing ◽  
Sensitized Phosphorescence

Photolysis of ketene. I

1968 ◽  
Vol 46 (14) ◽  
pp. 2353-2360 ◽  
Author(s):  
A. N. Strachan ◽  
D. E. Thornton
Keyword(s):  
Carbon Monoxide ◽  
Quantum Yield ◽  
Triplet State ◽  
Singlet State ◽  
Inert Gases ◽  
Inert Gas ◽  
Excited Singlet State ◽  
Intersystem Crossing ◽  
Excited Singlet ◽  
Increasing Temperature

Ketene has been photolyzed at 3660 and 3130 Å both alone and in the presence of the inert gases C4F8 and SF6. The quantum yield of carbon monoxide has been determined at both wavelengths as a function of pressure and temperature. At 3660 Å the quantum yield decreases with increasing pressure but increases with increasing temperature. At 3130 Å the quantum yield with ketene alone remains 2.0 at both 37 and 100 °C at pressures up to 250 mm. At higher pressures of ketene or with added inert gas the quantum yield decreases with increasing pressure. The results are interpreted in terms of a mechanism in which intersystem crossing from the excited singlet state to the triplet state occurs at both wavelengths, and collisional deactivation of the excited singlet state by ketene is single stage at 3660 Å but multistage at 3130 Å.

Identification of a receiver triplet state in the ultrafast intersystem crossing of carbonylpyrenes

2020 ◽  
Vol 22 (11) ◽  
pp. 6145-6153
Author(s):  
Lekshmi R. S. ◽  
Gayathri B. Kurup ◽  
Sivaranjana Reddy Vennapusa
Keyword(s):  
Quantum Yield ◽  
Triplet State ◽  
Intersystem Crossing

The intersystem crossing receiver triplet state lifetime dictates the efficiency of the triplet quantum yield in carbonylpyrenes.

Pulsed photoacoustic determination of the quantum yield of triplet state formation

1985 ◽  
Vol 30 (2) ◽  
pp. 141-151 ◽  
Author(s):  
Stanisa̵w J. Komorowski ◽  
Zbigniew R. Grabowski ◽  
Wojciech Zielenkiewicz
Keyword(s):  
Quantum Yield ◽  
Triplet State ◽  
State Formation
Sign in / Sign up

Export Citation Format

Share Document