Issue 9, 2003

Molecular rectangles from metallomacrocycles: development of dibenzofuranligands

Abstract

Two new ligands 4,6-bis(4′-pyridylsulfide)dibenzofuran L1 and 4,6-bis(methylsulfanylmethyl)dibenzofuran L2, based on dibenzofuran with exodentate thio-pyridine arms were prepared. The crystal structures of three metallomacrocycles were determined. Reaction of L1 with AgClO4 in a 1 : 1 metal-to-ligand ratio gave a ClO4 clamped metallomacrocycle, 1. The analogous reaction with CuCl2 gave a metallomacrocycle, 2, in which bridging chloride ions bisected the macrocycle. Both metallomacrocycles were rectangular in shape but their cavities were occluded by bridging interactions. Reaction of L2 with CuI in a 1 : 2 metal-to-ligand ratio gave a metallomacrocycle, 3, in which Cu2I2 moieties were incorporated into the edge of the macrocycle. This allowed for clearly defined cavities, which formed channels containing MeCN molecules in the overall three-dimensional honeycomb array.

Graphical abstract: Molecular rectangles from metallomacrocycles: development of dibenzofuran ligands

Supplementary files

Article information

Article type
Paper
Submitted
20 Jan 2003
Accepted
13 Mar 2003
First published
28 Mar 2003

Dalton Trans., 2003, 1754-1758

Molecular rectangles from metallomacrocycles: development of dibenzofuran ligands

P. L. Caradoc-Davies and L. R. Hanton, Dalton Trans., 2003, 1754 DOI: 10.1039/B300761H

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