Syntheses, structures and physical properties of transition metal-organic frameworks assembled from trigonal heterofunctional ligands

Shu Yan Song, Xue Zhi Song, Shu Na Zhao, Chao Qin, Sheng Qun Su, Min Zhu, Zhao Min Hao, Hong Jie Zhang

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

Abstract

Six novel metal-organic frameworks (MOFs), {Mn(bpydb)(bpyHdbH)} n (1) {[Co 2(bpydb) 2](H 2O) 0.5} n (2), {[Ni 0.5(bpydbH)(H 2O)](DMF) 2} n (3), {[Cu 2(bpydb) 2](H 2O) 0.5} n (4), {Zn(bpyHdb) 2} n (5) and {[Cd 0.5(bpydb) 0.5(DMF)](H 2O)} n (6), were successfully synthesized by assembling transition metal salts with trigonal heterofunctional ligand 4,4′-(4,4′-bipyridine-2,6-diyl) dibenzoic acid (bpydbH 2) under hydrothermal and/or solvothermal conditions. Compound 1 features a rare 4-fold interpenetrating (3,5)-connected framework with hms-type topology. Isostructural compounds 2 and 4, constructed by M 2(COO) 4 secondary building units, exhibit a robust 3D framework with alb topological type in 2-fold interpenetrating mode. Compound 3 consists of 2D (4,4) networks, which are further assembled into the new topological framework with the symbol (5 3·6 2·8)(5 3·6 3) 2 through O-H⋯O interactions. Compound 5 manifests a novel 4-connected interpenetrating framework, constructed by 2D (4,4) layers and interbedded N-H⋯O interactions. Non-interpenetrating honeycomb networks are observed in compound 6, and further packed into a 3D framework featuring 1D channels. The magnetic susceptibility of compound 2 indicates antiferromagnetic interactions between cobalt ions. The photoluminescent properties of 5 and 6 were investigated in the solid state at room temperature.

Original languageEnglish
Pages (from-to)10412-10421
Number of pages10
JournalDalton Transactions
Volume41
Issue number34
DOIs
Publication statusPublished - Sep 14 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

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