Some of the important combustion properties of deuterium such as flammability limits, laminar burning velocities, and detonation cell widths have been determined experimentally. The experiments provide a basis for evaluating the properties of deuterium-air or deuterium-oxygen-diluent mixtures from t
Isotope effect on the melting of para-hydrogen and ortho-deuterium clusters
β Scribed by Daphna Scharf; Glenn J. Martyna; Michael L. Klein
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 463 KB
- Volume
- 197
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Path integral Monte Carlo calculations have been used to investigate the isotope effect on the "melting" of small clusters of para-hydrogen Q-H*) and ortho-deuterium (o-D2). While clusters of (o.D~)~ with N= 13 and 55 exhibit a quantum-lipid+quantum-solid "freezing" transition in a temperature regime where the effects of Bose statistics are unimportant, the corresponding (PH~)~ clusters do not.
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The slow, low pressure, unimolecular dissociation reactions of the weakly bound cluster ions, [ (CH3) 2CO] β’ CI-, (C6H6) β’ C1 and (CH3OCH3) n β’ H30 + (n = 2, 3), and their deuterated analogues have been examined by Fourier transform ion cyclotron resonance spectrometry. The unimolecular dissociation
2%~ diffcrcncc in chemicnt shift between hydrogen bonded protons and deutcrons has been cxzmincd bodr tlworetitally nnd cxpcrimcntaliy. it is shown that valuable information about the hydrogen bond poteM can bc cxtmcted from this isotope effect on chcmicd rhifts.
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