Paramagnetic systems contain one or more unpaired electrons and have therefore a
positive magnetic susceptibility. The paramagnetic systems of main interest to chemists …

The last decade has witnessed a rapid development of both theoretical ideas and NMR
relaxation measurements (high-resolution as well as NMRD) for a variety of paramagnetic …

The T1 and T2 relaxation rate enhancements produced by dissolved paramagnetic solutes
is called the NMR paramagnetic relaxation enhancement or NMR-PRE. Because the …

The slow-motion theory of nuclear spin relaxation in paramagnetic low-symmetry complexes
is generalized to comprise arbitrary values of S. We describe the effects of rhombic …

The fluctuations in the zero‐field splitting (ZFS) of the electronic ground state of the Ni (II) ion
in aqueous solution have been studied through a combination of ab initio quantum …

This work presents the anisotropic pseudorotation (APR) model, which is a new dynamic
model for the interpretation of experimental nuclear spin‐lattice relaxation times in …

A low-field theory of nuclear spin relaxation in paramagnetic systems is developed, resulting
in closed analytical expressions. We use the same approach as Westlund, who derived the …

A generalization of the modified SBM theory is developed in closed analytical form. The
theory is applied to describe the paramagnetically enhanced water proton spin–lattice …

A generalization of the slow-motion theory of nuclear spin relaxation in paramagnetic
systems (S= 1) is developed. The new model takes into account the effects of rhombic …

The electronic relaxation of gadolinium complexes used as MRI contrast agents was studied
theoretically by following the short time evolution of zero-field-splitting parameters. The …