Superexchange in Chromium(III) Complexes: A Survey of Magnetic Behavior

Richard L. Carlin, Ramon Burriel, Josefina Pons, Jaime Casabó

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17 Citations (Scopus)

Abstract

The magnetic susceptibilities at low temperatures of a series of 11 polycrystalline bimetallic coordination compounds of Cr(III) are presented. Materials such as [Cr(H2O)(NH))3][Co(CN)5] are found to behave as simple paramagnets, while [Cr(H2O)(NH3)5](CuCl5) appears to undergo magnetic ordering at 298 mK. A number of other Cr/Cr compounds, such as [Cr(urea)6] [Cr(NCS)6].3H2O, remain paramagnetic to temperatures as low as 40 mK. Exchange interactions are found to be remarkably weak in most of the compounds investigated. The compound [Cr(C5H5NO)6](ClO4)3 also exhibits very weak exchange interactions. © 1983, American Chemical Society. All rights reserved.
Original languageEnglish
Pages (from-to)2832-2836
JournalInorganic Chemistry
Volume22
Issue number20
DOIs
Publication statusPublished - 1 Jan 1983

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