A Spectrochemical Series for Electron Spin Relaxation.

ABSTRACT: Controlling the rate of electron spin relaxation in paramagnetic molecules is essential for contemporary applications in molecular magnetism and quantum information science. However, the physical mechanisms of spin relaxation remain incompletely understood, and new spectroscopic observables play an important role in evaluating spin dynamics mechanisms and structure-property relationships. Here, we use cryogenic magnetic circular dichroism (MCD) spectroscopy and pulse electron paramagnetic resonance (EPR) in tandem to examine the impact of ligand field (d-d) excited states on spin relaxation rates. We employ a broad scope of square-planar Cu(II) compounds with varying ligand field strength, including CuS₄, CuN₄, CuN₂O₂, and CuO₄ first c

SUBMITTER: Kazmierczak NP 

PROVIDER: S-EPMC11760167 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature