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Issue 29, 2015
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Novel helical assembly of a Pt(ii) phenylbipyridine complex directed by metal–metal interaction and aggregation-induced circularly polarized emission

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Abstract

Pt(II) phenylbipyridine complexes possessing bis(phenylisoxazolyl)phenylacetylene ligands self-assembled to form stacked aggregates via Pt–Pt, π–π stacking, and dipole–dipole interactions. The assembled structures were influenced by the solvent properties. Non-helical assemblies found in chloroform displayed metal–metal-to-ligand charge transfer absorption and emission, whereas helical assemblies formed in toluene showed aggregation-induced enhancement of emission and aggregation-induced circularly polarized luminescence. The rates of the association and dissociation of the assemblies were significantly reduced in toluene, and the non-helical structures formed in chloroform were surprisingly memorized.

Graphical abstract: Novel helical assembly of a Pt(ii) phenylbipyridine complex directed by metal–metal interaction and aggregation-induced circularly polarized emission

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Supplementary files

Article information


Submitted
03 Apr 2015
Accepted
10 Jun 2015
First published
10 Jun 2015

This article is Open Access

Dalton Trans., 2015,44, 13156-13162
Article type
Paper

Novel helical assembly of a Pt(II) phenylbipyridine complex directed by metal–metal interaction and aggregation-induced circularly polarized emission

T. Ikeda, M. Takayama, J. Kumar, T. Kawai and T. Haino, Dalton Trans., 2015, 44, 13156 DOI: 10.1039/C5DT01284H

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