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Probing Spin Crossover in a Solution by Paramagnetic NMR Spectroscopy

Inorganic Chemistry, ISSN: 1520-510X, Vol: 56, Issue: 24, Page: 14759-14762
2017
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Article Description

Spin transitions in spin-crossover compounds are now routinely studied in the solid state by magnetometry; however, only a few methods exist for studies in solution. The currently used Evans method, which relies on NMR spectroscopy to measure the magnetic susceptibility, requires the availability of a very pure sample of the paramagnetic compound and its exact concentration. To overcome these limitations, we propose an alternative NMR-based technique for evaluating spin-state populations by only using the chemical shifts of a spin-crossover compound; those can be routinely obtained for a solution that contains unknown impurities and paramagnetic admixtures or is contaminated otherwise.

Bibliographic Details

Alexander A. Pavlov; Gleb L. Denisov; Yulia V. Nelyubina; Valentin V. Novikov; Mikhail A. Kiskin

American Chemical Society (ACS)

Chemistry

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