A Four-Component Heterometallic Cu-Pt Quadrilateral via Self-Sorting

Chem Asian J. 2016 Oct 6;11(19):2662-2666. doi: 10.1002/asia.201600399. Epub 2016 May 6.

Abstract

Herein we combine the subcomponent self-assembly and integrative self-sorting techniques with the well-established platinum(II)-pyridine coordination-driven self-assembly to report the quantitative synthesis and spectroscopic characterization of a heterometallic CuI -PtII quadrilateral QL that is formed from a total of twelve molecular components from four unique species, including 5-(pyridin-4-ylethynyl)picolinaldehyde (1), p-toluidine (2), [Cu(CH3 CN4 ](PF6 ) (3), and cis-Pt(PEt3 )2 (OTf)2 (4), in a 4:4:2:2 ratio. Despite the many different entities potentially forming from these four precursor units, the clean formation of QL is mainly guided by the different coordination preferences of the metal ions 3 and 4, and the design criteria inherent in compounds 1 and 2.

Keywords: integrative self-sorting; multicomponent self-assembly; orthogonality; platinum(II)-pyridine coordination-driven self-assembly; sub-component self-assembly.