Vibrational relaxation and intersystem crossing in N2(a1.PI.g)

1988 ◽  
Vol 92 (12) ◽  
pp. 3429-3437 ◽  
Author(s):  
William J. Marinelli ◽  
Byron D. Green ◽  
Margrethe A. DeFaccio ◽  
William A. M. Blumberg
Keyword(s):  
Vibrational Relaxation ◽  
Intersystem Crossing

scholarly journals Vibrational Relaxation and Intersystem Crossing of Binuclear Metal Complexes in Solution

2011 ◽  
Vol 133 (2) ◽  
pp. 305-315 ◽  
Author(s):  
Renske M. van der Veen ◽  
Andrea Cannizzo ◽  
Frank van Mourik ◽  
Antonín Vlček ◽  
Majed Chergui
Keyword(s):  
Metal Complexes ◽  
Vibrational Relaxation ◽  
Intersystem Crossing ◽  
Binuclear Metal

Mechanism of vibrational relaxation and intersystem crossing within excited ion-pair states of I2

1991 ◽  
Vol 103 (3) ◽  
pp. 417-428
Author(s):  
Ágúst Kvaran ◽  
Svava ósk Jónsdóttir ◽  
Thorgeir E. Thorgeirsson
Keyword(s):  
Vibrational Relaxation ◽  
Ion Pair ◽  
Intersystem Crossing

Pressure dependence of intersystem crossing in aromatic vapours

1971 ◽  
Vol 323 (1552) ◽  
pp. 11-28 ◽  
Keyword(s):  
Density Of States ◽  
Aromatic Hydrocarbons ◽  
Pressure Dependence ◽  
Vibrational Relaxation ◽  
Pressure Range ◽  
Vapour Phase ◽  
Fluorescence Yield ◽  
Gas Pressure ◽  
Intersystem Crossing ◽  
Low Pressures

The triplet yield of several aromatic hydrocarbons irradiated in the vapour phase decreases as the total gas pressure is decreased, approaching zero at zero pressure. Conversely, the fluorescence yield increases as the pressure is lowered. A theory of this pressure dependence is given which recognizes that intersystem crossing, which is normally irreversible owing to stabilization by vibrational relaxation, must become reversible at low pressures. To account for the experimental results over the whole pressure range it is also necessary to take into account the dependence of intersystem crossing rates on the density of states and therefore on the energy of excitation.

scholarly journals Emission and Relaxation of Electronically Excited O2 Doped in a Low Temperature N2 Crystal

1995 ◽  
Vol 15 (2-4) ◽  
pp. 83-92 ◽  
Author(s):  
Hideo Kajihara ◽  
Tomoyuki Okamura ◽  
Fumio Okada ◽  
Seiichiro Koda
Keyword(s):  
Low Temperature ◽  
Vibrational Relaxation ◽  
Laser Excitation ◽  
Wave Length ◽  
Pulsed Laser ◽  
Intersystem Crossing ◽  
Additional Mechanism ◽  
Excitation Wave ◽  
Vibrational Levels ◽  
Electronically Excited

Oxygen molecules doped in a low temperature N2 crystal were irradiated at 240-260 nm. Two emission band systems were observed, one from the v′ = 0 level of A′ 3Δu state to X3Σg-. state and the other, from the v′ = 0 level of c1Σu-. state to at a1Δg state, independent on the excitation wave length. The latter emission grew together with the decay of the former emission at around the same rate after the pulsed laser excitation, which implies that the vibrational levels of c state lying below the v′ = 0 level of Ω = 3 of A′ state are populated from the v′ = level of A′ state, though some additional mechanism for populating the c state may exist. The rate was found to become larger with the increase of the crystal temperature. It was also found that the excitation spectrum obtained by monitoring the A′–X emission was the same as that obtained by the c–a emission. The progress of vibrational relaxation, coupling with the intersystem crossing between the Herzberg states, will be discussed.

Vibrational relaxation by reversible intersystem crossing

1979 ◽  
Vol 44 (1) ◽  
pp. 45-51 ◽  
Author(s):  
M. Lavollée ◽  
A. Tramer
Keyword(s):  
Vibrational Relaxation ◽  
Intersystem Crossing
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