2315-40-4Relevant articles and documents
Aggregation induced emission switching and electrical properties of chain length dependent π-gels derived from phenylenedivinylene bis-pyridinium salts in alcohol-water mixtures
Samanta, Suman K.,Bhattacharya, Santanu
, p. 25277 - 25287 (2012)
Supramolecular π-gels were formed in a mixture of aliphatic alcohols and water for a series of chromophoric phenylenedivinylene bis-N-alkyl pyridinium salts (PPV) appended with terminal aliphatic hydrocarbon chains of different lengths. Gelation could be
Ferrocene amphiphilic D-π-A dyes: Synthesis, redox behavior and determination of band gaps
López-Mayorga,Sandoval-Chávez,Carreón-Castro,Ugalde-Saldívar,Cortés-Guzmán,López-Cortés,Ortega-Alfaro
supporting information, p. 6101 - 6113 (2018/04/23)
We report the synthesis of a series of ferrocene amphiphilic donor-π-acceptor dyes, with the general formula (Fc-CHCH-HetNC16H33)+ X- [where: Fc behaves as the donor group, a double bond as the π bridge, and 2-,4-pyridinium and 4-quinolinium as the potent acceptor groups (2a-b and 4, X = Br- or BF4-)], in good overall yields. Together with their neutral counterparts (6a-b and 7), the photophysical and electrochemical properties of these compounds were investigated by means of UV-Vis spectroscopy and cyclic voltammetry. The optical and electrochemical band gaps of these dyes were calculated, which indicated that 4 has the lowest bandgap value. Time-dependent DFT calculations indicate that the lowest energy absorption band displayed for these compounds has mainly metal-to-ligand charge transfer character, with the HOMO-LUMO electronic transition being the main contribution.
Synthesis and mesophase behaviour of ionic liquid crystals
Ster,Baumeister,Chao, J. Lorenzo,Tschierske,Israel
, p. 3393 - 3400 (2008/09/18)
N-Alkyl-pyridinium derivatives 1-3 and N-alkyl-stilbazolium halides 4-6 with hydroxy, methoxy and hydrogen 4′-substituents and long non-branched alkyl chains (n = 14, 16, 18, 20, 22) were synthesized and characterized by polarizing microscopy, differentia