title: Minerals with metal-organic framework structures.
abstract: Metal-organic frameworks (MOFs) are an increasingly important family of advanced materials based on open, nanometer-scale metal-organic architectures, whose design and synthesis are based on the directed assembly of carefully designed subunits. We now demonstrate an unexpected link between mineralogy and MOF chemistry by discovering that the rare organic minerals stepanovite and zhemchuzhnikovite exhibit structures found in well-established magnetic and proton-conducting metal oxalate MOFs. Structures of stepanovite and zhemchuzhnikovite, exhibiting almost nanometer-wide and guest-filled apertures and channels, respectively, change the perspective of MOFs as exclusively artificial materials and represent, so far, unique examples of open framework architectures in organic minerals.
authors.affiliation: Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, H3A 0B8 Quebec, Canada.
authors.forename: Igor
authors.identifier: 0000-0003-1011-1460
authors.initials: I
authors.lastname: Huskić
authors.affiliation: Faculty of Geology, Lomonosov Moscow State University, Vorobievy Gory, 119991 Moscow, Russia.
authors.forename: Igor V
authors.initials: IV
authors.lastname: Pekov
authors.affiliation: Department of Crystallography, Saint Petersburg State University, University Emb. 7/9, 199034 Saint Petersburg, Russia.
authors.forename: Sergey V
authors.initials: SV
authors.lastname: Krivovichev
authors.affiliation: Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, H3A 0B8 Quebec, Canada.
authors.forename: Tomislav
authors.initials: T
authors.lastname: Friščić
mesh_terms: D002623:Chemistry Techniques, Analytical; D008670:Metals / Q000737:chemistry*; D008903:Minerals / Q000737:chemistry*; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D010070:Oxalates / Q000737:chemistry
chemical_list: D008670:Metals; D008903:Minerals; D009942:Organometallic Compounds; D010070:Oxalates
keywords: Minerals; coordination chemistry; crystallography; geology; materials; metal-organic frameworks; mineralogy; solid-state chemistry