Issue 22, 2016

Unique (3,9)-connected porous coordination polymers constructed by tripodal ligands with bent arms

Abstract

Solvothermal reactions of Co(NO3)2 with tripodal ligands 3,3′-([3,4′-bipyridine]-2′,6′-diyl)dibenzoic acid (H2L4), 3,3′-([4,4′-bipyridine]-2,6-diyl)dibenzoic acid (H2L5), and 2,6-bis(4-(1H-tetrazol-5-yl)phenyl)-4,4′-bipyridine (H2L6) possessing one to three bent arms, yielded three new porous coordination polymers, namely [Co33-OH)(L4)3] (1), [Co33-OH)(L5)3] (2), and [Co33-OH)(L6)3] (3), respectively. Single-crystal X-ray crystallography showed that 1–3 are all three-dimensional (3,9)-connected coordination networks interconnected by the tripodal ligands and the classical tricapped trigonal-prismatic [Co33-OH)(RCOO)6(Py)3] (Py = pyridyl) or new tricapped trigonal-prismatic [Co33-OH)(Rtz)6(Py)3] (Rtz = tetrazolate) clusters. However, instead of the classical xmz topology for such a kind of 3-connected ligands and 9-connected clusters, 1 and 2 show a new (3,9)-connected topology, wys, with a point symbol of {42·6}3{46·627·83}, while 3 has a (3,9)-connected eee topology. Thermogravimetry, powder X-ray diffraction, and gas adsorption measurements demonstrated that the desolvated forms of 1–3 are all porous, but different framework flexibilities were observed.

Graphical abstract: Unique (3,9)-connected porous coordination polymers constructed by tripodal ligands with bent arms

Supplementary files

Article information

Article type
Paper
Submitted
18 dec 2015
Accepted
21 jan 2016
First published
22 jan 2016

CrystEngComm, 2016,18, 4115-4120

Unique (3,9)-connected porous coordination polymers constructed by tripodal ligands with bent arms

J. Shen, Y. Wei, P. Liao, R. Lin, D. Zhou, J. Zhang and X. Chen, CrystEngComm, 2016, 18, 4115 DOI: 10.1039/C5CE02487K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements