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

Chem Commun (Camb). 2016 Oct 18;52(85):12653-12656. doi: 10.1039/c6cc05873f.

Authors

Jamie L Manson¹, John A Schlueter², Kerry E Garrett¹, Paul A Goddard³, Tom Lancaster⁴, Johannes S Möller⁵, Stephen J Blundell⁵, Andrew J Steele⁵, Isabel Franke⁵, Francis L Pratt⁶, John Singleton⁷, Jesper Bendix⁸, Saul H Lapidus⁹, Marc Uhlarz¹⁰, Oscar Ayala-Valenzuela⁷, Ross D McDonald⁷, Mary Gurak⁷, Christopher Baines¹¹

Affiliations

¹ Department of Chemistry and Biochemistry, Eastern Washington University, Cheney, WA 99004, USA. jmanson@ewu.edu.
² Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA.
³ Department of Physics, University of Warwick, Coventry CV4 7AL, UK.
⁴ Center for Materials Physics, Durham University, Durham DH1 3LE, UK.
⁵ Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
⁶ ISIS Pulsed-Muon Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, UK.
⁷ National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
⁸ Department of Chemistry, University of Copenhagen, Copenhagen DK-2100, Denmark.
⁹ X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont IL 60439, USA.
¹⁰ Hochfeld-Magnetlabor Dresden (HLD-EMFL), Helmholtz-Zentrum Dresden Rossendorf, DE-01314, Dresden, Germany.
¹¹ Laboratory for Muon-Spin Spectroscopy, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.

PMID: 27713934
DOI: 10.1039/c6cc05873f

Abstract

The title compounds are bimetallic MOFs containing [Cu(pyz)₂]²⁺ square lattices linked by MF₆^n- 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.