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

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...

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Published inAngewandte Chemie International Edition Vol. 54; no. 21; pp. 6231 - 6235
Main Authors Fu, Jun-Hao, Lee, Yin-Hsuan, He, Yun-Jui, Chan, Yi-Tsu
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 18.05.2015
WILEY‐VCH Verlag
Wiley
Wiley Subscription Services, Inc
EditionInternational ed. in English
Subjects
Assembling
cadmium
Chemistry
Chemistry, Multidisciplinary
Complexation
Elongation
Formations
Ligands
multivalency
Nanostructure
Physical Sciences
Science & Technology
Self assembly
self-sorting
Strategy
Superstructures
supramolecular chemistry
terpyridines
MOBILITY-MASS-SPECTROMETRY
COMPLEX
DESIGN
METALLOMACROCYCLES
terpyridines
POLYHEDRA
MACROCYCLES
LINKS
COORDINATION
self-sorting
multivalency
KNOTS
cadmium
supramolecular chemistry
ARCHITECTURES
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Summary: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). A nano‐spiderweb: The complexation of multivalent terpyridine ligands with CdII ions afforded various linker‐dependent ring‐in‐ring structures. The two‐step self‐assembly process through a tetratopic intermediate was deciphered by a mechanistic study. This ligand design strategy was successfully utilized in the construction of a trilayered metallo‐supramolecular spiderweb.
Bibliography:ArticleID:ANIE201501507
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.
Ministry of Science and Technology of Taiwan - No. NSC101-2113M-002-020-MY2; No. MOST103-2113M-002-003-MY2
ark:/67375/WNG-6V7QM409-8
istex:CDE87084212C689EFD69303B10AE63A0B60746C8
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.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201501507