Volume 127, Issue 21 pp. 6329-6333
Zuschrift

Facile Self-Assembly of Metallo-Supramolecular Ring-in-Ring and Spiderweb Structures Using Multivalent Terpyridine Ligands

Jun-Hao Fu

Jun-Hao Fu

Department of Chemistry, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Taipei, 10617 (Taiwan)

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Yin-Hsuan Lee

Yin-Hsuan Lee

Department of Chemistry, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Taipei, 10617 (Taiwan)

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Yun-Jui He

Yun-Jui He

Department of Chemistry, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Taipei, 10617 (Taiwan)

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Prof. Dr. Yi-Tsu Chan

Corresponding Author

Prof. Dr. Yi-Tsu Chan

Department of Chemistry, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Taipei, 10617 (Taiwan)

Department of Chemistry, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Taipei, 10617 (Taiwan)Search for more papers by this author
First published: 07 April 2015
Citations: 21

This research was supported by the Ministry of Science and Technology of Taiwan (NSC101-2113M-002-020-MY2 and MOST103-2113M-002-003-MY2). We gratefully thank Prof. Hao Ming Chen for TEM measurements.

Abstract

A series of metallo-supramolecular ring-in-ring structures was generated by assembling CdII ions and the multivalent terpyridine ligands (L1-3) composed of one 60°-bent and two 120°-bent bis(terpyridine)s with varying alkyl linker lengths. The mechanistic study for the self-assembly process excluded an entropically templated pathway and showed that the intramolecularly complexed species is the key intermediate leading to ring-in-ring formation. The next-generation superstructure, a spiderweb, was produced in quantitative yield using the elongated decakis(terpyridine) ligand (L5).

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