Issue 40, 2018

Concentration dependent supramolecular interconversions of triptycene-based cubic, prismatic, and tetrahedral structures

Abstract

The quantitative, single step, self-assembly of a shape-persistent, three-dimensional C3v-symmetric, triptycene-based tris-terpyridinyl ligand initially gives a platonic-based cubic architecture, which was unequivocally characterized by 1D and 2D NMR spectroscopy, mass spectrometry, and single crystal X-ray structural analysis. The unique metal–ligand binding properties of the Cd2+ analogue of this construct give rise to a concentration-dependent dynamic equilibrium between cube, prism, and tetrahedron-shaped architectures. Dilution transforms this cube into two identical tetrahedra through a stable prism-shaped intermediate; increasing the concentration reverses the process.

Graphical abstract: Concentration dependent supramolecular interconversions of triptycene-based cubic, prismatic, and tetrahedral structures

Supplementary files

Article information

Article type
Paper
Submitted
05 N’w 2017
Accepted
12 Sun 2018
First published
12 Sun 2018

Dalton Trans., 2018,47, 14189-14194

Concentration dependent supramolecular interconversions of triptycene-based cubic, prismatic, and tetrahedral structures

S. Chakraborty, K. J. Endres, R. Bera, L. Wojtas, C. N. Moorefield, M. J. Saunders, N. Das, C. Wesdemiotis and G. R. Newkome, Dalton Trans., 2018, 47, 14189 DOI: 10.1039/C7DT04571A

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