Formation of a dimer of trinuclear helicates which encapsulates an array of six hydrogen-bonded anions

Robert A Faulkner; Lindsay P Harding; Joshua Higginson; Craig R Rice; Christopher Slater

doi:10.1002/anie.201407645

Formation of a dimer of trinuclear helicates which encapsulates an array of six hydrogen-bonded anions

Angew Chem Int Ed Engl. 2014 Dec 1;53(49):13540-3. doi: 10.1002/anie.201407645. Epub 2014 Oct 16.

Authors

Robert A Faulkner¹, Lindsay P Harding, Joshua Higginson, Craig R Rice, Christopher Slater

Affiliation

¹ Department of Chemical and Biological Sciences, University of Huddersfield, Huddersfield HD1 3DH (UK).

PMID: 25323465
DOI: 10.1002/anie.201407645

Abstract

The amine-containing ligand L, composed of two bidentate pyridyl-thiazole moieties linked by a 1,3-diaminophenylene unit, reacts with copper(II) ions to form a dinuclear double helicate [Cu2 L2 ](4+) . Reaction of [Cu2 L2 ](4+) with dihydrogen phosphate (0.5 equivalents) gives the unsaturated dinuclear double helicate [Cu2 L2 (OPO3 H2 )](3+) . [Cu2 L2 (OPO3 H2 )](3+) further reacts with another 0.5 equivalents of dihydrogen phosphate to give a trinuclear circular helicate which then self-assembles into a hexameric cluster [{Cu3 L3 (OPO3 H2 )3 }](26+) .

Keywords: X-ray diffraction; copper; cyclic helicate; helical structures; self-assembly.