[2,2'-Bipyridine]-3,3'-diamine

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CAS: 75449-26-2
MF: C10H10N4
MW: 186.2132
Synonyms: [2,2'-Bipyridine]-3,3'-diamine

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Jun Liu

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences
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Lixiang Wang

Chinese Academy of Sciences
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Zhiyuan Xie

Chinese Academy of Sciences
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David B. Amabilino

Campus Universitari de Bellaterra
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Co-reporter: Dr. Flavia Pop;Caroline Melan;Dr. Ion Danila;Dr. Mathieu Linares;Dr. David Beljonne; David B. Amabilino;Dr. Narcis Avarvari
pp: 17443-17453
Publication Date(Web):
DOI: 10.1002/chem.201404753

Abstract

The preparation and self-assembly of the enantiomers of a series of C3-symmetric compounds incorporating three tetrathiafulvalene (TTF) residues is reported. The chiral citronellyl and dihydrocitronellyl alkyl chains lead to helical one dimensional stacks in solution. Molecular mechanics and dynamics simulations combined with experimental and theoretical circular dichroism support the observed helicity in solution. These stacks self-assemble to give fibres that have morphologies that depend on the nature of the chiral alkyl group and the medium in which the compounds aggregate. An inversion of macroscopic helical morphology of the citronellyl compound is observed when compared to analogous 2-methylbutyl chains, which is presumably a result of the stereogenic centre being further away from the core of the molecule. This composition still allows both morphologies to be observed, whereas an achiral compound shows no helicity. The morphology of the fibres also depends on the flexibility at the chain ends of the amphiphilic components, as there is not such an apparently persistent helical morphology for the dihydrocitronellyl derivative as for that prepared from citronellyl chains.

E.M. Meijer

Technische Hogeschool Eindhoven
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E. W. Meijer

Eindhoven University of Technology
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Albertus P. H. J. Schenning

Eindhoven University of Technology
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Lixiang Wang

Changchun Institute of Applied Chemistry
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