|Author||Heller, Chonon ♦ McConnell, Harden M.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Publisher||American Institute of Physics (AIP)|
|Subject Keyword||NUCLEAR PHYSICS AND RADIATION PHYSICS ♦ ALKENES ♦ ANISOTROPY ♦ BONDING ♦ CARBON ♦ CONFIGURATION ♦ CRYSTALS ♦ ELECTRONS ♦ FREE RADICALS ♦ INTERACTIONS ♦ IRRADIATION ♦ LATTICES ♦ MAGNETISM ♦ MALONIC ACID ♦ METHYLENE ♦ ORGANIC ACIDS ♦ PROTONS ♦ RADIATION EFFECTS ♦ RESONANCE ♦ SPIN ♦ SUCCINIC ACID ♦ X RADIATION|
|Abstract||An analysis of the electron spin resonance of xirradiated single crystals of beta -succinic acid shows that: (a) the principal long-lived paramagnetic species produced by the radiation damage is (CO<sub>2</sub>H)CH<sub>2</sub> CH(CO<sub>2</sub>H); (b) the radical is oriented in the crystal lattice in nearly the same way that the parent succinic acid molecule is oriented in the undamaged lattice; (c) the strongly anisotropic hyperfine interaction due to the sigma proton is very nearly the same as that previously found for the sigma proton in the malonic acid radical, (CO<sub>2</sub>H)CH(CO<sub>2</sub>H). In these molecules the sigma proton is directly bonded to the carbon atom on which the odd electron is largely localized. The two methylene protons in the radical are not equivalent, and their hyperfine irteractions are nearly isotropic, and in the range 80 to 100 Mc.|
|Learning Resource Type||Article|
|Publisher Department||California Inst. of Tech., Pasadena|
|Journal||Journal of Chemical Physics|
|Organization||California Inst. of Tech., Pasadena|
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