An Organotin Vanadate with Sodalite Topology and Catalytic Versatility in Oxidative Transformations. Issue 16 (4th July 2018)

• Record Type: Journal Article
• Authors: Gomes, Ana C.; Antunes, Margarida M.; Abrantes, Marta; Valente, Anabela A.; Paz, Filipe A. Almeida; Gonçalves, Isabel S.; Pillinger, Martyn
• Is Part Of: ChemCatChem. Volume 10:Issue 16(2018)
• Page Start: 3481
• Page End: 3489
• Publication Date: 2018-07-04
• Subjects: vanadates -- tin -- sodalite topology -- epoxidation -- oxidative dehydrogenation; Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201800477
• Languages: English
• ISSNs: 1867-3880

Abstract

Abstract: The new coordination polymer formulated as [Et3 SnVO3 ] (1 ) has been synthesized and shown by a combined single‐crystal and synchrotron powder X‐ray diffraction structural analysis, supported by solid‐state NMR, to possess a three‐dimensional network structure with the sodalite topology, formed by tetravanadate polyanions, [V4 O12 ] 4−, that are linked by Et3 Sn + spacers. The catalytic versatility of compound1 for liquid phase organic reactions was demonstrated by applying it for the epoxidation of olefins, the oxidative dehydrogenation of alcohols, and the oxidation of benzyl alcohol to benzaldehyde and benzoic acid, using tert ‐butyl hydroperoxide (TBHP) as oxidant. Compound1 acts a solid reservoir for soluble, catalytically active species, which promote high selectivities to the epoxide and carbonyl (aldehyde/ketone/acid) products. The epoxidation activity compares favorably with those reported for other organotin molybdate, tungstate and vanadate coordination polymers, and is superior to that displayed by the starting materials used for its synthesis (Et3 SnBr and NH4 VO3 ) and the metavanadate NBu4 VO3 . Abstract : Let there be sodalite : The coordination polymer [Et3 SnVO3 ] (1 ) possesses a three‐dimensional network structure with the sodalite topology, formed by tetravanadate polyanions, [V4 O12 ] 4−, that are linked by Et3 Sn + spacers. The catalytic versatility of1 was demonstrated by applying it for the epoxidation of olefins, the oxidative dehydrogenation of alcohols, and the oxidation of benzyl alcohol.