An acidity scale, [H+]h.nu., for proton quenching of excited states

1987 ◽  
Vol 109 (7) ◽  
pp. 2181-2182 ◽  
Author(s):  
W. Brandon ◽  
A. L. Pincock ◽  
J. A. Pincock ◽  
P. Redden ◽  
C. Sehmbey
Keyword(s):  
Excited States ◽  
Acidity Scale

An acidity scale, [H+]hv, for proton quenching of excited states

1989 ◽  
Vol 67 (2) ◽  
pp. 227-238 ◽  
Author(s):  
J. A. Pincock ◽  
P. R. Redden
Keyword(s):  
Excited State ◽  
Fluorescence Quenching ◽  
Excited States ◽  
Benzyl Alcohols ◽  
Fluorescent Indicator ◽  
Quenching Of Fluorescence ◽  
Acidity Scale

An acidity scale for excited state protonation kinetics in 20% ethanol:80% aqueous sulfuric has been developed using 1-cyano-naphthalene as a fluorescent indicator. The utility of this new scale is demonstrated using the proton quenching of fluorescence of a variety of chromophores. These include 1- and 2-cyanonaphthalenes, 1- and 2-methoxynaphthalenes, benzyl alcohols, toluenes, and 2-vinylnaphthalene. Keywords: acidity scale, fluorescence quenching, excited state basicity.

ChemInform Abstract: An Acidity Scale, (H+)hv, for Proton Quenching of Excited States

ChemInform ◽  
1987 ◽  
Vol 18 (33) ◽  
Author(s):  
W. BRANDON ◽  
A. L. PINCOCK ◽  
J. A. PINCOCK ◽  
P. REDDEN ◽  
C. SEHMBEY
Keyword(s):  
Excited States ◽  
Acidity Scale

An acidity scale, [H+]hv, for proton quenching of excited states in aqueous perchloric acid

1989 ◽  
Vol 67 (4) ◽  
pp. 710-719 ◽  
Author(s):  
J. A. Pincock ◽  
P. R. Redden
Keyword(s):  
Excited State ◽  
Activity Coefficient ◽  
Excited States ◽  
Perchloric Acid ◽  
Acidity Function ◽  
Quenching Rate ◽  
Benzyl Alcohols ◽  
Fluorescent Indicator ◽  
Aqueous Perchloric Acid ◽  
Acidity Scale

An acidity scale for excited state protonation kinetics in aqueous perchloric acid has been developed using 1-cyanonaph-thalene as a fluorescent indicator. A comparison of the quenching rate constants obtained using this scale is made with both the more general excess acidity function, X, and the transition state activity coefficient approach. A variety of chromophores were studied including 1- and 2-cyanonaphthalenes, 1- and 2-methoxynaphthalenes, benzyl alcohols, toluenes, benzonitriles, and 2-vinylnaphthalene. Keywords: acidity scale, proton fluorescence quenching.

Vuv Spectra Y to Mo

1988 ◽  
Vol 102 ◽  
pp. 239
Author(s):  
M.S.Z. Chaghtai
Keyword(s):  
Excited States ◽  
Spectral Analyses ◽  
Vuv Spectra

Using R.D. Cowan’s computations (1979) and parametric calculations of Meinders et al (1982), old analyses are thoroughly revised and extended at Aligarh, of Zr III by Khan et al (1981), of Nb IV by Shujauddin et Chaghtai (1985), of Mo V by Tauheed at al (1985). Cabeza et al (1986) confirmed the last one largely.Extensive studies have been reported of the 1–e spectra, Zr IV (Rahimullah et al 1980; Acquista and Reader 1980), Nb V (Shujauddin et al 1982; Kagan et al 1981) and Mo VI (Edlén et al 1985). Some interacting 4p54d2levels of these spectra have been reported from our laboratory, also.Detailed spectral analyses of transitions between excited states have furnished complete energy values for J ≠ 1 levels of these spectra during 1970s and 80s. Shujauddin et al (1982) have worked out Nb VI and Tauheed et al (1984) Mo VII from our lab, while Khan et al (1981) share the work on Zr V with Reader and Acquista (1979).

Excited states of nuclei in -coupling

Physica ◽  
1952 ◽  
Vol 18 (2) ◽  
pp. 1101-1104
Author(s):  
B FLOWERS
Keyword(s):  
Excited States

ACCESS OF EXCITED STATES TO THE CONTINUUM

1985 ◽  
Vol 46 (C7) ◽  
pp. C7-409-C7-412 ◽  
Author(s):  
C. K. Jørgensen
Keyword(s):  
Excited States ◽  
The Continuum

GIANT RESONANCES BUILT ON HIGHLY EXCITED STATES

1984 ◽  
Vol 45 (C4) ◽  
pp. C4-337-C4-350 ◽  
Author(s):  
K. A. Snover
Keyword(s):  
Excited States ◽  
Giant Resonances
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