Bimetallic MOFs (H3O)x[Cu(MF6)(pyrazine)2]·(4 − x)H2O (M = V4+, x = 0; M = Ga3+, x = 1): co-existence of ordered and disordered quantum spins in the V4+ system

Jamie L. Manson; John A. Schlueter; Kerry E. Garrett; Paul A. Goddard; Tom Lancaster; Johannes S. Möller; Stephen J. Blundell; Andrew J. Steele; Isabel Franke; Francis L. Pratt; John Singleton; Jesper Bendix; Saul H. Lapidus; Marc Uhlarz; Oscar Ayala-Valenzuela; Ross D. McDonald; Mary Gurak; Christopher Baines

doi:10.1039/C6CC05873F

Bimetallic MOFs (H₃O)_x[Cu(MF₆)(pyrazine)₂]·(4 − x)H₂O (M = V⁴⁺, x = 0; M = Ga³⁺, x = 1): co-existence of ordered and disordered quantum spins in the V⁴⁺ system†

Jamie L. Manson,*^a John A. Schlueter,^b Kerry E. Garrett,^a Paul A. Goddard,^c Tom Lancaster,^d Johannes S. Möller,‡^e Stephen J. Blundell,^e Andrew J. Steele,^e Isabel Franke,^e Francis L. Pratt,^f John Singleton,^g Jesper Bendix,^h Saul H. Lapidus,ⁱ Marc Uhlarz,^j Oscar Ayala-Valenzuela,^g Ross D. McDonald,^g Mary Gurak^g and Christopher Baines^k

Author affiliations

* Corresponding authors

^a Department of Chemistry and Biochemistry, Eastern Washington University, Cheney, WA 99004, USA
E-mail: jmanson@ewu.edu

^b Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA

^c Department of Physics, University of Warwick, Coventry CV4 7AL, UK

^d Center for Materials Physics, Durham University, Durham DH1 3LE, UK

^e Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK

^f ISIS Pulsed-Muon Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, UK

^g National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, NM 87545, USA

^h Department of Chemistry, University of Copenhagen, Copenhagen DK-2100, Denmark

ⁱ X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont IL 60439, USA

^j Hochfeld-Magnetlabor Dresden (HLD-EMFL), Helmholtz-Zentrum Dresden Rossendorf, DE-01314, Dresden, Germany

^k Laboratory for Muon-Spin Spectroscopy, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland

Abstract

The title compounds are bimetallic MOFs containing [Cu(pyz)₂]²⁺ square lattices linked by MF₆ⁿ⁻ octahedra. In each, only the Cu²⁺ spins exhibit long-range magnetic order below 3.5 K (M = V⁴⁺) and 2.6 K (M = Ga³⁺). The V⁴⁺ spins remain disordered down to 0.5 K.

Chemical Communications

Bimetallic MOFs (H₃O)_x[Cu(MF₆)(pyrazine)₂]·(4 − x)H₂O (M = V⁴⁺, x = 0; M = Ga³⁺, x = 1): co-existence of ordered and disordered quantum spins in the V⁴⁺ system†

Abstract

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Bimetallic MOFs (H₃O)_x[Cu(MF₆)(pyrazine)₂]·(4 − x)H₂O (M = V⁴⁺, x = 0; M = Ga³⁺, x = 1): co-existence of ordered and disordered quantum spins in the V⁴⁺ system

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