The determination of hydrogen atom concentrations in flames by the lithium/lithium hydroxide method

1967 ◽  
Vol 11 (4) ◽  
pp. 362-364 ◽  
Author(s):  
C.J. Halstead ◽  
D.R. Jenkins
Keyword(s):  
Hydrogen Atom ◽  
Lithium Hydroxide

Quantum Resonances: Line Profiles and Dynamics

2003 ◽  
Vol 68 (3) ◽  
pp. 529-553 ◽  
Author(s):  
Ivana Paidarová ◽  
Philippe Durand
Keyword(s):  
Hydrogen Atom ◽  
Operator Theory ◽  
Quantum Dynamics ◽  
Line Profiles ◽  
Static Electric Field ◽  
Reversal Effect ◽  
Quantum Resonances ◽  
Energy Dependent ◽  
Effective Hamiltonians

The wave operator theory of quantum dynamics is reviewed and applied to the study of line profiles and to the determination of the dynamics of interacting resonances. Energy-dependent and energy-independent effective Hamiltonians are investigated. The q-reversal effect in spectroscopy is interpreted in terms of interfering Fano profiles. The dynamics of an hydrogen atom subjected to a strong static electric field is revisited.

Determination of hydrogen atom binding sites on Ru(001) by HREELS

1983 ◽  
Vol 133 (2-3) ◽  
pp. A375
Author(s):  
M.A. Barteau ◽  
J.Q. Broughton ◽  
D. Menzel
Keyword(s):  
Hydrogen Atom ◽  
Binding Sites

Determination of hydrogen atom binding sites on Ru(001) by HREELS

1983 ◽  
Vol 133 (2-3) ◽  
pp. 443-452 ◽  
Author(s):  
M.A. Barteau ◽  
J.Q. Broughton ◽  
D. Menzel
Keyword(s):  
Hydrogen Atom ◽  
Binding Sites

scholarly journals The mechanism of action of serine transhydroxymethylase

1970 ◽  
Vol 116 (2) ◽  
pp. 277-286 ◽  
Author(s):  
P. M. Jordan ◽  
M. Akhtar
Keyword(s):  
Schiff Base ◽  
Amino Acid ◽  
Hydrogen Atom ◽  
Mechanism Of Action ◽  
Active Site ◽  
Enzyme Preparation ◽  
Pyridoxal Phosphate ◽  
Acid Oxidase ◽  
Amino Acid Oxidase

1. The preparation of stereospecifically tritiated glycines and the determination of their absolute configurations by the use of d-amino acid oxidase are described. 2. The reaction catalysed by serine transhydroxymethylase, which results in the conversion of glycine into serine, has been separated into at least four partial reactions. It is suggested that the first event in this conversion is the formation of a Schiff base intermediate of glycine and pyridoxal phosphate. The next important step involves the removal of the 2S-hydrogen atom of glycine to give a carbanion intermediate. Experiments pertinent to the mechanism of conversion of this carbanion intermediate into serine are described. 3. The enzyme preparation catalysing the conversion of glycine into serine also participates in the conversion of glycine into threonine and allothreonine. In both these conversions, glycine → serine and glycine → threonine, the 2S-hydrogen atom of glycine is eliminated and the 2R-hydrogen atom of glycine is retained. 4. In the light of these experiments the mechanism of action of serine transhydroxymethylase is discussed. It is suggested that methylenetetrahydrofolate is the carrier of formaldehyde, from which formaldehyde may be liberated at the active site of the enzyme, thus allowing the overall reaction to take place.

Determination of the Rates of Hydrogen Atom Reaction with NO by a Modulation Technique

1973 ◽  
Vol 51 (3) ◽  
pp. 370-372 ◽  
Author(s):  
R. Atkinson ◽  
R. J. Cvetanović
Keyword(s):  
Nitric Oxide ◽  
Hydrogen Atom ◽  
Phase Shift ◽  
Rate Constants ◽  
Hydrogen Atoms ◽  
Arrhenius Parameters ◽  
Modulation Technique ◽  
The Absolute

A modulation technique has been used to determine from phase shift measurements the absolute values of the rate constants and the Arrhenius parameters of the reaction of hydrogen atoms with nitric oxide.

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