Issue 12, 2014

A series of coordination polymers constructed by a flexible tetracarboxylic acid: synthesis, structural diversity and luminescent properties

Abstract

By using a flexible tetracarboxylic acid ligand, 5,5′-(p-xylylenediamino)-1,1′,3,3′-(benzene-tetra-carboxylic acid) (H4L), and three N-donor rigid co-ligands, ten coordination polymers, [Cu(4bipy)2](H2L) (1), [Cd2(L)(2bipy)2]·5H2O (2), [Cd2(L)(H2O)6]·2H2O (3), [Mn2(L)(H2O)6]·4H2O (4), [Co2(L)(H2O)6]·4H2O (5), [Zn2(L)(2bipy)2]·3H2O (6), [Zn2(L)(phen)2]·2H2O (7), [Ni2(L)(2bipy)2(H2O)2]·2H2O (8), and [Cu2(L)(phen)2(H2O)2] (9), and [Zn2(L)(phen)2(H2O)2] (10) (4bipy = 4,4′-bipyridine, 2bipy = 2,2′-bipyridine, and phen = 1,10-phenanthroline) have been synthesized and structurally characterized by elemental analysis, IR, single-crystal X-ray diffraction and thermogravimetric analysis. The single crystal of ligand H4L reveals that there are two pairs of hydrogen bonds between two H4L molecules, which lead to a 1-D linear supramolecular chain. Complex 1 shows a three-dimensional (3D) two-fold interpenetrated Cu2+-4bipy cationic host framework, [Cu(4bipy)2]2+ with the 4-connected dia net, in which there are 1-D guest supramolecular chains formed by the intermolecular hydrogen bonds between adjacent (H2L)2− anions. 2 has a two-dimensional (2D) 4-connected {44·62} uninodal sql/Shubnikov tetragonal plane network. 3–10 display a new 2D 2-nodal (2,4)-connected network with a {84·122}{8}2 topology. Complexes 3–5, 9 and 10 generate a 3D supramolecular structure by the hydrogen bonds between adjacent layers. 6–8 form a 3D network through strong π⋯π stacking interactions between adjacent layers. The co-ligand effects on the complex structures are studied. Also, we investigate the solid-state luminescence of compounds H4L, 2–10 at room temperature.

Graphical abstract: A series of coordination polymers constructed by a flexible tetracarboxylic acid: synthesis, structural diversity and luminescent properties

Supplementary files

Article information

Article type
Paper
Submitted
21 Oct 2013
Accepted
18 Dec 2013
First published
19 Dec 2013

CrystEngComm, 2014,16, 2508-2519

A series of coordination polymers constructed by a flexible tetracarboxylic acid: synthesis, structural diversity and luminescent properties

C. Jia, Q. Lin and W. Yuan, CrystEngComm, 2014, 16, 2508 DOI: 10.1039/C3CE42127A

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