Open AccessTemperature Dependent Magnetic Susceptibility and Equilibrium Studies in Solution: Evans’s Method
Author(s) -
Debarati Ghosh
Publication year - 2017
Publication title -
prayogik rasayan
Language(s) - English
Resource type - Journals
ISSN - 2581-3323
DOI - 10.53023/p.rasayan-201704282
Subject(s) - paramagnetism , magnetic susceptibility , chemistry , atmospheric temperature range , solvent , planar , condensed matter physics , nuclear magnetic resonance , thermodynamics , crystallography , organic chemistry , physics , computer science , computer graphics (images)
The chemical shift in a solvent caused by the presence of a paramagnetic species and thetemperature dependence of the chemical shift difference to determine the temperaturedependent magnetic susceptibility can be studied using Evans method. The method is very useful because a common NMR instrument, easily accessible in a department of chemistry, allows the accurate measurement of paramagnetic susceptibilities. The present review highlights planar (S = 0) and octahedral (S = 1) forms of Ni(II) complexes are in equilibrium and has been followed in the temperature range 298 − 338 K by 1H NMR technique using the protocol of Evans’s method.