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Updated: Jul 17, 2026

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
Published on: October 9, 2020
Local spin moment distribution in antiferromagnetic molecular rings probed by NMR
E Micotti1, Y Furukawa, K Kumagai
1Department of Physics "A. Volta" and CNR-INFM, Via Bassi 6, I-27100 Pavia, Italy and Division of Physics, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan. micotti@fisicavolta.unipv.it
Abstract:
The NMR spectra of 19F and 53Cr have been obtained at low temperatures in a heterometallic substituted antiferromagnetic (AF) ring Cr7Cd with an S=3/2 ground state and compared with the spectra in a homometallic Cr8 AF ring with an S=0 ground state. From the analysis of the spectra one can derive directly model independent values of the staggered nonuniform distribution of the local moment in the heterometallic ring Cr7Cd. The experimental values are found to be in excellent agreement with the theoretical values calculated on the basis of an effective spin Hamiltonian which includes crystal field effects.
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