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

被引：16

作者：

Chakraborty, Sourav ^{[1
]}

Endres, Kevin J. ^{[1
]}

Bera, Ranajit ^{[2
]}

Wojtas, Lukasz ^{[3
]}

Moorefield, Charles N. ^{[4
]}

Saunders, Mary Jane ^{[5
]}

Das, Neeladri ^{[2
]}

Wesdemiotis, Chrys ^{[1
,6
]}

Newkome, George R. ^{[1
,6
,7
]}

机构：

[1] Univ Akron, Dept Polymer Sci, Akron, OH 44256 USA

[2] Indian Inst Technol Patna, Dept Chem, Patna 801106, Bihar, India

[3] Univ S Florida, Dept Chem, 4202 East Fowler Ave, Tampa, FL 33620 USA

[4] Dendronex LLC, 109 Runway Dr, Lubbock, TX 79416 USA

[5] Florida Atlantic Univ, Dept Biol Sci, Boca Raton, FL 33431 USA

[6] Univ Akron, Dept Chem, Akron, OH 44256 USA

[7] Florida Atlantic Univ, Ctr Mol Biol & Biotechnol, Jupiter, FL 33458 USA

来源：

DALTON TRANSACTIONS | 2018年 / 47卷 / 40期

基金：

美国国家科学基金会;

关键词：

COMPLEXES; TRIANGLE; EQUILIBRIUM; MOBILITIES; SCATTERING; LIGANDS;

D O I：

10.1039/c7dt04571a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The quantitative, single step, self-assembly of a shape-persistent, three-dimensional C(3)v-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.

引用

页码：14189 / 14194

页数：6

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