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

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

doi:10.1021/ic00162a013

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

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

Department of Chemistry

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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 language	English
Pages (from-to)	2832-2836
Journal	Inorganic Chemistry
Volume	22
Issue number	20
DOIs	https://doi.org/10.1021/ic00162a013
Publication status	Published - 1 Jan 1983

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title = "Superexchange in Chromium(III) Complexes: A Survey of Magnetic Behavior",

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. {\textcopyright} 1983, American Chemical Society. All rights reserved.",

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T1 - Superexchange in Chromium(III) Complexes: A Survey of Magnetic Behavior

AU - Carlin, Richard L.

AU - Burriel, Ramon

AU - Pons, Josefina

AU - Casabó, Jaime

PY - 1983/1/1

Y1 - 1983/1/1

N2 - 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.

AB - 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.

U2 - 10.1021/ic00162a013

DO - 10.1021/ic00162a013

M3 - Article

VL - 22

SP - 2832

EP - 2836

IS - 20

ER -

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

Abstract

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