³⁵Cl NQR Study of Cation Polarizability in Metal Salts of Monochloro Acetic Acid

Abstract

Various metal salts (Na, K, Rb, and NH4) of monochloro acetic acid were prepared and the 35 Cl nuclear quadrupole resonance frequencies were measured at room temperature. A comparative study of nuclear quadrupole resonance frequencies of monochloro acetic acid and its metal salts is carried out. The frequency shifts obtained in the respective metal chloroacetates are used to estimate the changes in the ionicity of C-Cl bond. Further, the changes in the ionicity of C-Cl bond were used to estimate the percentage of intra-molecular charge transfer between respective cation-anion of the metal salts of chloro acetic acid. The nuclear quadrupole resonance frequency is found to decrease with increasing ionicity of the alkali metal ion.

35Cl NQR frequency and spin lattice relaxation study in 3,4‐dichloronitrobenzene as a function of temperature and pressure

“…The second term, the “dynamic term,” represents the effect of pressure on the amplitude of torsional oscillation. The methods followed for the analysis of pressure variation of NQR frequency is as described in the paper by Ramu et al and Suresh et al…”