Babushkina, T. A.; Robas, V. I.; Semin, G. K. published the artcile< Temperature dependences of the nuclear quadrupole resonance frequencies in molecular crystals>, Related Products of 112-63-0, the main research area is temperature nuclear quadrupole resonances; nuclear quadrupole resonances temperature; quadrupole resonances nuclear temperature; resonances nuclear quadrupole temperature; benzenes halo derivative; halobenzenes; nitrobenzenes.
About 90 temperature dependences of the nuclear quadrupole resonance frequencies (ω) of the nuclei 35Cl, 79Br, and 127I in mol. crystals of different aliphatic and C6H6 halogen derivatives were studied. The chief contribution to the temperature dependence of ω comes from torsional vibrations of the mols. in the crystal. In the temperature region 77-295°., ω is a linear function of temperature; hence, measurements at 3 temperatures (77, 195, and 295°K.) were sufficient. An exception was nitrohalogen derivatives of C6H6 (Br and I) and m-F2C6Br4 where the point of inflection of the temperature curve takes place on the side opposite that predicted by the Baeyer theory. Values of ω were measured for the compounds EtSiCl3 and CCl2(NO2)2 which had phase transformations. Although the relative changes in ω for CCl2(NO2)2 during phase transformations do not exceed 1.5%, T1 was equal to 130, 12, and 2.5 msec. for the α, β, and γ phases, resp., at 77°K. A statistical treatment of crystal shifts (∼600 splittings) showed that the most probable splitting values were in the range of 0.2-0.3% of the signal frequency.
Radiospektrosk. Tverd. Tela published new progress about Nuclear quadrupole resonance. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics