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$S = 4$ and $S = 5$ SPIN STATES OF THE ANTIFERROMAGNETIC $Mn_{2}$ MOLECULE

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Title: $S = 4$ and $S = 5$ SPIN STATES OF THE ANTIFERROMAGNETIC $Mn_{2}$ MOLECULE
Creators: Cheeseman, M.; Weltner, W., Jr.
Issue Date: 1988
Publisher: Ohio State University
Abstract: $MD_{2}$ has been shown to be a van der Waals molecule with the two Mn atoms $(3d^{5}4s^{2})$ antiferromagnetically coupled $(J = -10 cm^{-1})$ to form a $^{1}\sigma_{g}$ lowest $state.^{1} {Mn_{2}}$ can be formed in solid methane or cyclopropane at 12 K without reacting, and warming successively populates the higher $S = 1, 2, 3, 4, 5$ spin states. These hydrocarbon matrices allowed higher temperatures to be reached than in rare-gas matrices with still resolvable spectra so that ESR transitions in $S = 4$ and $S = 5$ could be observed and analyzed. The derived g and D values corroborate the earlier application of the Judd-Owen theory.
Description: $^{1}$ C. A. Baumann, R. J. Van Zee, S. V. Bhat, and W. Weltner, Jr., J. Chem. Phys. 78, 190 (1983); J.-C. Rivoal, J. Shakhs-Emampour, K. J. Zeringue, and M. Vala 92, 313 (1982).
Author Institution: Department of Chemistry, University of Florida
URI: http://hdl.handle.net/1811/17527
Other Identifiers: 1988-MH-5
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