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Journal of Coordination Chemistry Volume 69, 2016 - Issue 1
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Synthesis, crystal structure, and properties of a μ3-oxo-trichromium(III) propionate cluster with pyrazole

Olga BotezatInstitute of Applied Physics, Academy of Sciences of Moldova, Chisinau, Republic of Moldova
,
Irina G. FilippovaInstitute of Applied Physics, Academy of Sciences of Moldova, Chisinau, Republic of Moldova
,
Jürg HauserDepartement für Chemie und Biochemie, Universität Bern, Bern, Switzerland
,
Karl KrämerDepartement für Chemie und Biochemie, Universität Bern, Bern, Switzerland
,
Silvio DecurtinsDepartement für Chemie und Biochemie, Universität Bern, Bern, Switzerland
,
Shi-Xia LiuDepartement für Chemie und Biochemie, Universität Bern, Bern, Switzerland
&
Svetlana G. BacaInstitute of Applied Physics, Academy of Sciences of Moldova, Chisinau, Republic of MoldovaCorrespondence[email protected], [email protected]
 show all
Pages 72-80 | Received 16 Sep 2015, Accepted 29 Oct 2015, Published online: 11 Jan 2016
 
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Abstract

A new μ3-oxo trinuclear chromium(III) propionate cluster, [Cr3(μ3-O)(O2CCH2CH3)6(pyr)3]NO3·0.25(H2O) (1), has been synthesized by reaction of a μ3-oxo trinuclear chromium(III) propionate precursor [Cr3(μ3-O)(O2CCH2CH3)6(H2O)3]NO3 with a pyrazol ligand (pyr) and characterized by IR spectroscopy, single-crystal X-ray structure determination, and thermal analysis. Magnetic susceptibility and magnetization studies revealed antiferromagnetic exchange interactions within the trinuclear Cr(III) cluster (J = −11.9 cm−1) and determined the electronic ground state (S = ½) of the compound.

Funding

This study was supported by the Swiss National Science Foundation SCOPES [grant number IZ73Z0_152404/1].

Disclosure statement

No potential conflict of interest was reported by the authors.

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