TITLE

ESR observation of the H···H, H···D, and D···D spin-pair radicals in rare gas matrices

AUTHOR(S)
Knight, Lon B.; Rice, William E.; Moore, Louie; Davidson, Ernest R.
PUB. DATE
October 1995
SOURCE
Journal of Chemical Physics;10/1/1995, Vol. 103 Issue 13, p5275
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The first experimental observation of the fundamentally important spin-pair radicals, H...H, H...D, and D...D is reported. ESR (electron spin resonance) studies of rare gas matrices near 4 K containing extremely high concentrations of H and D atoms revealed the presence of these spin exchange-coupled molecules whose ESR spectra are analyzed in terms of a 3Σ electronic ground state. The observed D tensor (zero-field splitting) for a specific isotopic spin pair was surprisingly constant in all four rare gases but showed large changes among the three isotopic species. As expected, the hyperfine splitting (Aiso) for the spin-pair was observed to be one-half that of the free H or D atom. © 1995 American Institute of Physics.
ACCESSION #
7647526

 

Related Articles

  • On the spin polarization under Glauber electron scattering by a point dipole. Blinov, A. P. // Russian Physics Journal;Nov2005, Vol. 48 Issue 11, p1197 

    This paper considers the problem of small-angle electron scattering by a point dipole in the Glauber approximation taking into account the spin-orbit interaction in a continuous spectrum, which allows a general description of the polarization effects induced by the electron spin. It is shown for...

  • Spin evolution of radical pair with radical containing two groups of equivalent magnetic nuclei. Bagryansky, V. A.; Ivanov, K. L.; Borovkov, V. I.; Lukzen, N. N.; Molin, Yu. N. // Journal of Chemical Physics;6/8/2005, Vol. 122 Issue 22, p224503 

    Analytical solution is obtained for time-resolved magnetic field effects (TR-MFE) on recombination fluorescence of radical-ion pair (RIP) containing radical ion with two groups of magnetically equivalent nuclei. The present theoretical approach is applied to three experimental systems: RIPs...

  • Renner–Teller effect in linear tetra-atomic molecules. I. Variational method including couplings between all degrees of freedom on six-dimensional potential energy surfaces. Jutier, L.; Léonard, C.; Gatti, F. // Journal of Chemical Physics;4/7/2009, Vol. 130 Issue 13, p134301 

    For electronically degenerate states of linear tetra-atomic molecules, a new method is developed for the variational treatment of the Renner–Teller and spin-orbit couplings. The approach takes into account all rotational and vibrational degrees of freedom, the dominant couplings between...

  • Biological dissolution and activity of the Allende meteorite. Cervini-Silva, Javiera; Nieto-Camacho, Antonio; Cornejo-Garrido, Hilda; del Angel, Paz; Maya, Noel; Palacios, Eduardo; Montoya, José Ascención; Gómez-Vidales, Virginia; Ramirez-Apan, María Teresa // Geological Society of America Bulletin;Nov/Dec2013, Vol. 125 Issue 11-12, p1865 

    This paper reports on the effect of the Allende meteorite on the integrity of biological material and addresses the question whether it can induce cell damage via oxidative stress and cell mortality. The reaction mechanisms addressed herein are studied using electronparamagnetic resonance...

  • ESR Dating of Laterite from Muang Sing Historical Park, Kanchanaburi, Thailand. Limsuwan, S.; Vichaidid, T.; Onreabroy, W. // International Review of Physics;Feb2008, Vol. 2 Issue 1, p64 

    Electron spin resonance (ESR) spectroscopy technique has been employed to date the laterites collected from Muang Sing historical park, Kanchanaburi province (175 kilometers from Bangkok). The dose response of the ESR signals were found to be suitable for an age determination using a signal at g...

  • Signatures of the fast dynamics in glassy polystyrene: First evidence by high-field Electron Paramagnetic Resonance of molecular guests. Bercu, V.; Martinelli, M.; Massa, C. A.; Pardi, L. A; Leporini, D. // Journal of Chemical Physics;11/1/2005, Vol. 123 Issue 17, p174906 

    The reorientation of one small paramagnetic molecule (spin probe) in glassy polystyrene (PS) is studied by high-field electron paramagnetic resonance spectroscopy at two different Larmor frequencies (190 and 285 GHz). Two different regimes separated by a crossover region are evidenced. Below 180...

  • Synthesis and Properties of a Chiroptically Active Oligomer from 3,4-Ethylenedioxythiophene and (--)-Myrtenal. Kawashima, Hirotsugu; Goto, Hiromasa // Materials (1996-1944);Jun2011, Vol. 4 Issue 6, p1013 

    Oxidative polycondensation of 3,4-ethylenedioxythiophene and (-)-myrtenal was carried out with POCl3. A π-conjugated system thus constructed consists of aromatic and quinoidal alternating structure linked via methine groups. We examined iodine doping effect for the resultant material with...

  • Electron paramagnetic resonance spectrum of the FCO2 radical isolated in noble gas matrices. Beckers, H.; Willner, H.; Grote, D.; Sander, W.; Geier, J. // Journal of Chemical Physics;Jun2008, Vol. 128 Issue 22, p224301 

    The EPR spectra of the fluoroformyloxyl radical FCO2 isolated in noble gas matrices at temperatures from 5 to 30 K have been investigated. This study provides principal g values and 19F hyperfine coupling constants of FCO2 measured in Ar matrices at 5 K, and yields isotropic values at 30 K. A...

  • Defects at nitrogen site in electron-irradiated AlN. Son, N. T.; Gali, A.; Szabó, Á.; Bickermann, M.; Ohshima, T.; Isoya, J.; Janzén, E. // Applied Physics Letters;6/13/2011, Vol. 98 Issue 24, p242116 

    In high resistance AlN irradiated with 2 MeV electrons, an electron paramagnetic resonance (EPR) spectrum, labeled EI-1, with an electron spin S=1/2 and a clear hyperfine (hf) structure was observed. The hf structure was shown to be due the interaction between the electron spin and the nuclear...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics