Concentration dependence of the lifetime of the first excited singlet level of stilbene dissolved in chloroform

1975 ◽  
Vol 32 (3) ◽  
pp. 589-591 ◽  
Author(s):  
E. Heumann ◽  
W. Triebel ◽  
B. Wilhelmi
Keyword(s):  
Concentration Dependence ◽  
Excited Singlet ◽  
Singlet Level

Emission and Deactivation of the Excited States of 2,3-Pentanedione

1972 ◽  
Vol 50 (9) ◽  
pp. 1338-1344 ◽  
Author(s):  
A. W. Jackson ◽  
A. J. Yarwood
Keyword(s):  
Triplet State ◽  
Gas Phase ◽  
Excited States ◽  
Singlet State ◽  
Triplet States ◽  
Excited Singlet ◽  
Vibrationally Excited ◽  
Singlet Level ◽  
Singlet And Triplet States ◽  
Fluorescence And Phosphorescence

Vibrationally excited singlet and triplet states of 2,3-pentanedione are formed by photolysis at 365 nm. The processes removing these excited states in the gas phase are studied by measuring the fluorescence and phosphorescence yields. Fluorescence can occur from the vibrationally excited, as well as the vibrationally equilibrated, singlet state. The fluorescence and phosphorescence data are considered in terms of mechanisms which involve either weak or strong collisions. Although the data cannot distinguish between the alternatives, there are two significant conclusions. The fluorescence data require that emission occur from at least two levels in the singlet manifold. To explain the phosphorescence data, the highest emitting singlet level must not lead to a vibrationally equilibrated triplet state.

The Metastability of the Lowest Excited Singlet Level of Naphthalene

1949 ◽  
Vol 17 (6) ◽  
pp. 516-520 ◽  
Author(s):  
M. Kasha ◽  
R. V. Nauman
Keyword(s):  
Excited Singlet ◽  
Singlet Level

Lifetime of the 5s5p1P1 Level of Strontium

1973 ◽  
Vol 51 (10) ◽  
pp. 1088-1090 ◽  
Author(s):  
L. O. Dickie ◽  
F. M. Kelly ◽  
T. K. Koh ◽  
M. S. Mathur ◽  
F. C. Suk
Keyword(s):  
Oscillator Strength ◽  
Resonance Line ◽  
Excited Singlet ◽  
Singlet Level

The lifetime of the first excited singlet level, 5s5p1P1, of strontium has been measured using the Hanle resonance of the 5s21S0 – 5s5p1P1, 4607 Å, resonance line. The lifetime of the 5s5p1P1 level is 5.29 ± 0.10 ns and the oscillator strength of the 4607 Å line is 1.80 ± 0.03. These results are compared with previous measurements.

Concentration dependence of the properties of gelatin and iota-carrageenan systems at the gel point

1996 ◽  
Vol 93 ◽  
pp. 819-827 ◽  
Author(s):  
C Michon ◽  
G Cuvelier ◽  
B Launay ◽  
A Parker
Keyword(s):  
Concentration Dependence ◽  
Gel Point

TEMPERATURE AND CONCENTRATION DEPENDENCE OF THE SPECIFIC HEAT OF (ErxY1-x) Co2

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-273-C8-274 ◽  
Author(s):  
N. Pillmayr ◽  
G. Hilscher ◽  
E. Gratz ◽  
V. Sechovsky
Keyword(s):  
Specific Heat ◽  
Concentration Dependence

The Concentration Dependence of Hydrogen Diffusion in fcc TiHx, TiDxand YHx*

1992 ◽  
Vol 1 (1) ◽  
pp. 631-635
Author(s):  
U. Stuhr ◽  
D. Steinbinder ◽  
H. Wipf ◽  
B. Frick
Keyword(s):  
Concentration Dependence ◽  
Hydrogen Diffusion

The Gold Porphyrin First Excited Singlet State¶

2002 ◽  
Vol 76 (1) ◽  
pp. 47 ◽  
Author(s):  
Joakim Andréasson ◽  
Gerdenis Kodis ◽  
Su Lin ◽  
Ana L. Moore ◽  
Thomas A. Moore ◽  
...  
Keyword(s):  
Singlet State ◽  
Excited Singlet State ◽  
Excited Singlet

TEMPERATURE DEPENDENCE BEHAVIOR OF ELECTRICAL RESISTIVITY IN NOBLE METALS AT LOW TEMPERATURES

2014 ◽  
Vol 5 (3) ◽  
pp. 982-992 ◽  
Author(s):  
M AL-Jalali
Keyword(s):  
Experimental Data ◽  
Electrical Resistivity ◽  
Temperature Dependence ◽  
Concentration Dependence ◽  
Low Temperatures ◽  
Noble Metals ◽  
Phonon Scattering ◽  
Theoretical Models ◽  
Residual Resistivity ◽  
Electron Phonon Scattering

Resistivity temperature – dependence and residual resistivity concentration-dependence in pure noble metals(Cu, Ag, Au) have been studied at low temperatures. Dominations of electron – dislocation and impurity, electron-electron, and electron-phonon scattering were analyzed, contribution of these mechanisms to resistivity were discussed, taking into consideration existing theoretical models and available experimental data, where some new results and ideas were investigated.

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