Influence of synthetic conditions on the formation of thermally and hydrolytically stable Sc-based metal–organic frameworks. (1st April 2018)

• Record Type: Journal Article
• Authors: Barsukova, Marina O.; Samsonenko, Denis G.; Sapianik, Aleksandr A.; Sapchenko, Sergey A.; Fedin, Vladimir P.
• Is Part Of: Polyhedron. Volume 144(2018)
• Page Start: 219
• Page End: 224
• Publication Date: 2018-04-01
• Subjects: Coordination polymers -- Metal–organic framework -- Scandium complexes -- Luminescence -- 2, 5-furandicarboxylic acid; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2018.01.031
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: A series of new coordination polymers based on Sc(III) and 2, 5-furandicarboxylic acid was synthesized and demonstrated the influence of solvent composition and synthesis temperature on the MOF structure and stability. It was found compound3 demonstrated exceptionally high thermal and hydrolitic stability. Compounds2 and3 demonstrate ligand-centered luminescence. Abstract: Three new coordination polymers ((CH3 )2 NH2 )[Sc(H2 O)2 (fdc)2 ]·1, 5CH3 CN (1 ), ((CH3 )2 NH2 )2 [Sc(fdc)2 (HCOO)] (2 ), [Sc2 (H2 O)2 (fdc)3 ] (3 ) based on scandium cations and 2, 5-furandicarboxylate ligand (fdc 2− ) have been synthesized and characterized by single crystal and powder X-ray diffraction crystallography, TG, elemental analyses and IR-spectroscopy. Compound1 is formed from layers bind by hydrogen bonds. Calculated accessible for solvent volume is 41%. Compound2 is a structure of negatively charged layers connected with interlayer dimethylammonium cations. Layered compound3 appeared to be thermally stable (up to 300 °C) and retain its structure in wide range of pH from 1 to 13. Additionally, the solid-state luminescence properties of compounds2 and3 we investigated.