Multifaceted magnetization dynamics in the mononuclear complex [ReIVCl4(CN)2]2

Xiaowen Feng; Jun-Liang Liu; Kasper S Pedersen; Joscha Nehrkorn; Alexander Schnegg; Karsten Holldack; Jesper Bendix; Marc Sigrist; Hannu Mutka; Dumitru Samohvalov; David Aguilà; Ming-Liang Tong; Jeffrey R Long; Rodolphe Clérac

doi:10.1039/c6cc05473k

Multifaceted magnetization dynamics in the mononuclear complex [Re^IVCl₄(CN)₂]²

Chem Commun (Camb). 2016 Oct 25;52(87):12905-12908. doi: 10.1039/c6cc05473k.

Authors

Affiliations

¹ Department of Chemistry, University of California Berkeley, California 94720, USA. jrlong@berkeley.edu.
² MOE Key Lab of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China and CNRS, CRPP, UPR 8641, F-33600 Pessac, France. clerac@crpp-bordeaux.cnrs.fr and Univ. Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France.
³ CNRS, CRPP, UPR 8641, F-33600 Pessac, France. clerac@crpp-bordeaux.cnrs.fr and Univ. Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France and CNRS, ICMCB, UPR 9048, F-33600 Pessac, France.
⁴ Berlin Joint EPR Laboratory, Institut für Nanospektroskopie, Helmholtz-Zentrum für Materialien und Energie, 12489 Berlin, Germany.
⁵ Helmholtz-Zentrum für Materialien und Energie, Inst. f. Methoden und Instrumente der Forschung mit Synchrotronstrahlung, 12489 Berlin, Germany.
⁶ Department of Chemistry, University of Copenhagen, DK-2100 Copenhagen, Denmark.
⁷ Institut Laue-Langevin, 38042 Grenoble Cedex 9, France and Institute of Chemistry, Academia Sinica, Nankang, 11529 Taipei, Taiwan, ROC.
⁸ Institut Laue-Langevin, 38042 Grenoble Cedex 9, France.
⁹ CNRS, CRPP, UPR 8641, F-33600 Pessac, France. clerac@crpp-bordeaux.cnrs.fr and Univ. Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France.
¹⁰ MOE Key Lab of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China.
¹¹ Department of Chemistry, University of California Berkeley, California 94720, USA. jrlong@berkeley.edu and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA and Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, California 94720, USA.

PMID: 27739552
DOI: 10.1039/c6cc05473k

Abstract

The mononuclear complex (Bu₄N)₂[Re^IVCl₄(CN)₂]·2DMA (DMA = N,N-dimethylacetamide) displays intricate magnetization dynamics, implying Orbach, direct, and Raman-type relaxation processes. The Orbach relaxation process is characterized by an energy barrier of 39 K (27 cm^-1) that is discussed based on high-field electron paramagnetic resonance (EPR), inelastic neutron scattering and frequency-domain THz EPR investigations.