期刊
LIQUID CRYSTALS
卷 44, 期 5, 页码 880-888出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/02678292.2016.1254294
关键词
Iridium(III) complexes; chromonic-like liquid crystals; rheology; photophysics; water self-assembling
资金
- Regione Calabria (Italy) [POR CALABRIA FESR, ASSE I]
- FP7 [MATELIOS] [PON03PE_00092]
- FP7 [MATERIA project] [PONa3_00370]
- Ministero dell'Istruzione, dell'Universita e della Ricerca [Italian PRIN] [2012JHFYMC]
Luminescent complexes with general formula [(C<^>N)(2)Ir(N<^>N)]OCOCH3, where C<^>N = 2-phenylpyridine (ppy) and N<^>N = 2,2'-bipyridine (bpy), self-assemble into ordered 'soft' viscous mesophases of chromonic type. By changing the ancillary ligand with 1,10-phenanthroline (phen), a new mesomorphic complex was obtained. The self-assembly into ordered liquid crystalline phases of chromonic type in water was investigated by comprehensive rheological and photophysical studies. By changing the ancillary ligand bpy with phen, assembly into smaller, more symetric aggregates is favoured, resulting in lower viscosity and more dynamic mesophase.
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