Issue 14, 2012

Anion-dependent coordinative networking of macrocycle with copper(i) halides

Abstract

An O2S2-macrocycle L incorporating three aromatic subunits was synthesized and structurally characterized by X-ray analysis. Four coordination polymers of L with copper(I) halides (Cl, Br and I) adopting different topologies and network patterns depending on the anions are reported. Reactions of L with copper(I) chloride and copper(I) bromide yielded a single-stranded one-dimensional (1D) coordination polymer [CuCl2(L)(CH3CN)]n (1) with an oxidized copper(II) centre and a double-stranded 1D coordination polymer [(Cu2Br2)(L)2]·4CH2Cl2]n (2), with each strand linked by a rhomboid-type Cu2Br2 unit. However, the reaction with copper(I) iodide under the same conditions gave an emissive mixture of supramolecular isomers with an identical composition {[Cu4I4(L)2]·CH2Cl2}n, adopting a regular (3a) and a tilted (3b) square-grid-type 2D coordination polymers via cubane-type Cu4I4 linking. The XRPD results also confirmed the binary mixture. The conformational diversity in the ligand leads to a variation in overall structural motifs of the supramolecular isomers.

Graphical abstract: Anion-dependent coordinative networking of macrocycle with copper(i) halides

Supplementary files

Article information

Article type
Paper
Submitted
24 Jan 2012
Accepted
19 Apr 2012
First published
25 Apr 2012

CrystEngComm, 2012,14, 4589-4595

Anion-dependent coordinative networking of macrocycle with copper(I) halides

I. Park, H. J. Kim and S. S. Lee, CrystEngComm, 2012, 14, 4589 DOI: 10.1039/C2CE25111F

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