Issue 19, 2016

Metallomacrocycle-supported interpenetration networks assembled from binary N-containing ligands

Abstract

A new semi-rigid ligand of 4,4′-bis(1H-tetrazole)oxydibenzene (H2btzb) was designed and employed to assemble coordination compounds with the help of a secondary linker of 1,4-bis(1-imidazolyl)benzene (bib). Three compounds, including [Zn(btzb)(bib)]n·(H2O)3n (1), [Cd(btzb)(bib)0.5]n (2) and [Cd(btzb)(bib)(H2O)]n·(DMAC)n·(H2O)2n (3) (DMAC = N,N′-dimethylacetamide) with diverse structures, were successfully prepared in the hydro/solvothermal reaction. Single crystal X-ray diffraction analysis demonstrated that compound 1 is composed of two-fold two-dimensional (2D) sheets interpenetrated. 2 displayed a three-dimensional (3D) interpenetrated network. As for the structure of 3, it adopts a 3D network made up of two interpenetrated α-Po nets. Systematical and comparative investigations on these crystal structures of 1–3 disclosed that all compounds share interesting 2-membered metallomacrocycles [M2(btzb2)] (M = Zn and Cd) as a secondary building block. Furthermore, a gas sorption study revealed the porous 3 exhibited a selective adsorption of CO2 over N2 at 273 K.

Graphical abstract: Metallomacrocycle-supported interpenetration networks assembled from binary N-containing ligands

Supplementary files

Article information

Article type
Paper
Submitted
08 Jan 2016
Accepted
13 Apr 2016
First published
13 Apr 2016

CrystEngComm, 2016,18, 3506-3512

Metallomacrocycle-supported interpenetration networks assembled from binary N-containing ligands

W. Yang, C. Liu, Q. Ma, C. Wang, H. Wang and J. Jiang, CrystEngComm, 2016, 18, 3506 DOI: 10.1039/C6CE00057F

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