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Self-assembly of an Organometallic Fe9O6 Cluster from Aerobic Oxidation of (tmeda)Fe(CH2tBu)2

preprint
submitted on 10.08.2019 and posted on 13.08.2019 by Jonathan Kephart, Zachary Hecht, Brooke N. Livesay, Matthew P. Shores, V. Codrina Popescu, Navamoney Arulsamy, Elliott Hulley

Substoichiometric aerobic oxidation of the high-spin organometallic compound (tmeda)Fe(CH2tBu)2 (tmeda = N,N,N’,N’- tetramethylethylenediamine) in toluene or THF solution leads to the self-assembly of a magic-sized all-ferrous oxide cluster containing the Fe9O6 subunit and bearing organometallic and diamine ligands. Mössbauer studies of the cluster and the reference complex (tmeda)Fe(OCPh3)2 are consistent with the all-ferrous assignment, and magnetometry reveal considerable antiferromagnetic coupling between Fe atoms in the cluster and frustrated antiferromagnetic interactions between clusters in the solid state.

History

Email Address of Submitting Author

ehulley@uwyo.edu

Institution

University of Wyoming

Country

United States of America

ORCID For Submitting Author

0000-0002-2630-3689

Declaration of Conflict of Interest

None

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