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Issue 35, 2012
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Ionothermal syntheses, crystal structures and properties of three-dimensional rare earth metal–organic frameworks with 1,4-naphthalenedicarboxylic acid

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Abstract

Twelve isostructural rare earth metal–organic frameworks, namely, [Hmim][RE2Cl(1,4-NDC)3] (RE = La (1), Ce (2), Pr (3), Nd (4), Sm (5), Eu (6), Gd (7), Tb (8), Dy (9), Ho (10), Er (11), Y (12), Hmim = 1-hexyl-3-methylimidazolium, 1,4-NDCH2 = 1,4-naphthalenedicarboxylic acid), have been ionothermally synthesized and structurally characterized. The structures feature three-dimensionally anionic frameworks of [RE2Cl(1,4-NDC)3]nn with channels in which the Hmim+ cations are located. The current results are the first ionothermal synthesis of rare earth metal–organic frameworks based on 1,4-NDCH2 which possess a previously unknown (4,7)-connected 3-nodal network with the Schläfli symbol of (32·42·52)(32·49·52·68)2(43·63)2. Luminescent and magnetic properties of some of the title compounds have been studied. Thermogravimetric analyses indicated that all these compounds were thermally stable up to ca. 250 °C.

Graphical abstract: Ionothermal syntheses, crystal structures and properties of three-dimensional rare earth metal–organic frameworks with 1,4-naphthalenedicarboxylic acid

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Publication details

The article was received on 30 Apr 2012, accepted on 18 Jun 2012 and first published on 18 Jun 2012


Article type: Paper
DOI: 10.1039/C2DT30944K
Citation: Dalton Trans., 2012,41, 10576-10584
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    Ionothermal syntheses, crystal structures and properties of three-dimensional rare earth metal–organic frameworks with 1,4-naphthalenedicarboxylic acid

    B. Tan, Z. Xie, M. Feng, B. Hu, Z. Wu and X. Huang, Dalton Trans., 2012, 41, 10576
    DOI: 10.1039/C2DT30944K

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