[Cr4S(O2CCH3)8(H 2O)4](BF4)2·H2O: Ferromagneticaly coupled Cr4S cluster with spin 6 ground state

A. Bino*, D. C. Johnston, D. P. Goshorn, T. R. Halbert, E. I. Stiefel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Data on the preparation, structure, and magnetism of the new complex [Cr4S(O2CCH3)8(H2O)4] (BF4)2·H2O are presented. The metal-sulfur M4S core structure is similar to that found in M 4S[S2As(CH3)2]6 (where M is cobalt or zinc) compounds and in beryllium basic acetate. However, the six-coordinate metal ions in the new Cr4S system distinguish it from these structures. The tetranuclear chromium complex is the first example of a new structural type. Its magnetic spin S = 6 ground state, a striking example of intramolecular ferromagnetic coupling, was determined by variable-temperature magnetic susceptibility measurements. Long-range antiferromagnetic intercluster ordering was found below 170 millikelvin.

Original languageEnglish
Pages (from-to)1479-1481
Number of pages3
JournalScience
Volume241
Issue number4872
DOIs
StatePublished - 1988

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