Control of Magnetic Interactions in Polyarylmethyl Triplet Diradicals Using Steric Hindrance

Andrzej Rajca; Suchada Utamapanya; Jiangtien Xu

doi:10.1021/ja00024a032

Control of Magnetic Interactions in Polyarylmethyl Triplet Diradicals Using Steric Hindrance

Andrzej Rajca, Suchada Utamapanya, Jiangtien Xu

Chemistry

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74 Scopus citations

Abstract

Three polyarylmethyl triplet diradicals are prepared by oxidation of the corresponding carbodianions. Solid-state studies of the diradicals using SQUID show an onset of short-range ferromagnetic interactions at temperatures below 4 K for diradical 3^2•and antiferromagnetic interactions below 70 K for diradicals 2^2• and 4^2•. The diradicals and the corresponding carbodianions in solution are characterized using ESR, NMR, and UV-vis spectroscopy, and voltammetry.

Original language	English (US)
Pages (from-to)	9235-9241
Number of pages	7
Journal	Journal of the American Chemical Society
Volume	113
Issue number	24
DOIs	https://doi.org/10.1021/ja00024a032
State	Published - Nov 1 1991

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ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

Cite this

Rajca, A., Utamapanya, S., & Xu, J. (1991). Control of Magnetic Interactions in Polyarylmethyl Triplet Diradicals Using Steric Hindrance. Journal of the American Chemical Society, 113(24), 9235-9241. https://doi.org/10.1021/ja00024a032

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10.1021/ja00024a032