Nanoporous lanthanide-carboxylate frameworks based on 5-nitroisophthalic acid

Dalton Transactions : an International Journal of Inorganic Chemistry
San-Ping ChenSheng-Li Gao

Abstract

The reactions of lanthanide nitrates with 5-nitroisophthalic acid (ab. 5-H(2)nip) in DMF and ethanol (1 : 1) mixed solution gave rise to three nanoporous lanthanide polymers, {[Ln(2)(5-nip)(3)(DMF)(4)](DMF)(2)}(n) (Ln = Nd (), Dy (), Ho (), 5-nip = 5-nitroisophthalate). Single-crystal X-ray diffraction analyses reveal that they are isomorphous and feature three-dimensional metal-organic frameworks with two-dimensional intersecting channels occupied by guest DMF molecules constructed from the linkage of dimer Ln(2)C(6)O(12) SBUs and 5-nip ligands. The guest DMF molecules can be reversibly removed from as identified using TGA-DSC and PXRD. The heat of adsorption of the guest-free sample of with DMF was measured with a value of 10.3 kJ mol(-1) by an RD496-III type microcalorimeter. In addition, the photoluminescent property of was investigated.

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Citations

Nov 16, 2011·Inorganic Chemistry·Asamanjoy BhuniaPeter W Roesky
Sep 21, 2012·Acta Crystallographica. Section B, Structural Science·Kate DaviesClive L Oliver
Nov 10, 2017·Inorganic Chemistry·Antonio A García-ValdiviaAntonio Rodríguez-Diéguez

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