Issue 10, 2017, Issue in Progress

Metal organic frameworks with uni-, di-, and tri-nuclear Cd(ii) SBU prepared from 1,3-bis(4-pyridyl)propane and different dicarboxylate ligands: syntheses, structures and luminescent properties

Abstract

Three new metal organic frameworks (MOFs) derived from the flexible dipyridyl ligand 1,3-bis(4-pyridyl)propane (BPP), Cd(BPP)(OBA)(H2O)·(DMF)(H2O) (1), Cd(BPP)(4-HOIP)·(DMF)0.5(H2O) (2), [Cd6(BPP)(BPDC)7(DMF)2]2−·(H3O+)2(H2O)7 (3), (H2OBA = 4,4′-oxybis(benzoic acid), 4-H3OIP = 4-hydroxyisophthalic acid, H2BPDC = 4,4′-biphenyldicarboxylic acid, DMF = N,N-dimethylformamide) have been synthesized under mild conditions. By changing the co-dicarboxylate ligands, the three structures are based on uni-, di-, and tri-nuclear Cd(II) SBUs (secondary building units). Notably, compound 3 has an unusual 3D pillared framework with 2-fold interpenetrated hex topology. Most interestingly, in compound 3, BPP and BPDC ligands play the roles of two kinds of pillars, and support the same 2D layers alternatively leading to a special anionic 3D framework. To the best of our knowledge, such an arrangement has not been reported to date. Moreover, the three compounds exhibit strong luminescent emission at room temperature in the solid state.

Graphical abstract: Metal organic frameworks with uni-, di-, and tri-nuclear Cd(ii) SBU prepared from 1,3-bis(4-pyridyl)propane and different dicarboxylate ligands: syntheses, structures and luminescent properties

Supplementary files

Article information

Article type
Paper
Submitted
15 Nov 2016
Accepted
29 Dec 2016
First published
17 Jan 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 5541-5548

Metal organic frameworks with uni-, di-, and tri-nuclear Cd(II) SBU prepared from 1,3-bis(4-pyridyl)propane and different dicarboxylate ligands: syntheses, structures and luminescent properties

L. Wu, D. Chigan, L. Yan and H. Chen, RSC Adv., 2017, 7, 5541 DOI: 10.1039/C6RA26855B

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