Two metal–organic frameworks based on Sr2+ and 1,2,4,5-tetrakis(4-carboxyphenyl)benzene linkers

Autor: Muhammad Usman, Lydia Ogebule, Raúl Castañeda, Evgenii Oskolkov, Tatiana Timofeeva
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 12, Pp 1243-1248 (2021)
Druh dokumentu: article
ISSN: 2056-9890
20569890
DOI: 10.1107/S2056989021011361
Popis: Two structurally different metal–organic frameworks based on Sr2+ ions and 1,2,4,5-tetrakis(4-carboxyphenyl)benzene linkers have been synthesized solvothermally in different solvent systems and studied with single-crystal X-ray diffraction technique. These are poly[[μ12-4,4′,4′′,4′′′-(benzene-1,2,4,5-tetrayl)tetrabenzoato](dimethylformamide)distrontium(II)], [Sr2(C34H18O8)(C3H7NO)2]n, and poly[tetraaqua{μ2-4,4′-[4,5-bis(4-carboxyphenyl)benzene-1,2-diyl]dibenzoato}tristrontium(II)], [Sr3(C34H20O8)2(H2O)4]. The differences are noted between the crystal structures and coordination modes of these two MOFs, which are responsible for their semiconductor properties, where structural control over the bandgap is desirable. Hydrogen bonding is present in only one of the compounds, suggesting it has a slightly higher structural stability.
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