Issue 17, 2012

Copper(i) coordination polymers of 2,2′-dipyridylamine derivatives: syntheses, structures, and luminescence

Abstract

Reactions of CuX (X = Br, I or CN) with various types of 2,2′-dipyridylamine (dpa) derivatives have been performed via a hydrothermal–solvothermal method and the products have been structurally characterized by X-ray crystallography. Four ligands with different coordination motifs were employed in the reactions, including angular N,N,N′,N′-tetra(2-pyridyl)-2,6-pyridinediamine (tppda); linear N,N,N′,N′-tetra(2-pyridyl)-1,4-phenylenediamine (tppa) and N,N,N′,N′-tetra(2-pyridyl)biphenyl-4,4′-diamine (tpbpa); and star-shaped tris-[4-(2,2′-dipyridylamino)-phenyl]amine (tdpa), which yielded eight copper(I) complexes exhibiting different stoichiometries of Cu–dpa and variable coordination modes of dpa. The compound [Cu2(tppda)(μ-I)2]n (1) forms a one dimensional (1D) coordination polymer exclusively through double μ2-I bridges, which arranges to two dimensional (2D) metal–organic frameworks (MOFs) via the face-to-face π⋯π stacking interactions from pyridyl rings. The compound [Cu6(tppa)(μ3-Br)6]n (2) forms a 2D network linked through multiple μ3-Br bridges. The compound [Cu2(tppa)(μ-CN)2]n (3) is also a 2D MOF containing 1D (CuCN)n chains. The compounds [Cu(tpbpa)Br]n (4) and [Cu4(tpbpa)2(μ-I)4]n (5) display two different 1D assemblies: a zig-zag chain for 4 and a linear structure for 5. The compound [Cu4(tpbpa)(μ-CN)4]n (6) shows a pseudo-4,82 topological net, while the compound [Cu8(tpbpa)(μ-CN)8]n·2nH2O (7) exhibits a three-dimensional (3D) framework containing a ⋯PM⋯ double helical structure, although both of them contain (CuCN)n chains. The compound [Cu2(tdpa)(μ-I)2]n (8) is a zig-zag chain based on the star-shaped molecule tpda, in which one of three dpa-arms is free of coordination to metal ions. All complexes exhibit luminescence in the solid state.

Graphical abstract: Copper(i) coordination polymers of 2,2′-dipyridylamine derivatives: syntheses, structures, and luminescence

Supplementary files

Article information

Article type
Paper
Submitted
26 Oct 2011
Accepted
13 Feb 2012
First published
14 Mar 2012

Dalton Trans., 2012,41, 5280-5293

Copper(I) coordination polymers of 2,2′-dipyridylamine derivatives: syntheses, structures, and luminescence

J. Ni, K. Wei, Y. Min, Y. Chen, S. Zhan, D. Li and Y. Liu, Dalton Trans., 2012, 41, 5280 DOI: 10.1039/C2DT12032A

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