Issue 35, 2012

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

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

Supplementary files

Article information

Article type
Paper
Submitted
30 Apr 2012
Accepted
18 Jun 2012
First published
18 Jun 2012

Dalton Trans., 2012,41, 10576-10584

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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