Darya S. Cheshkina, Christina S. Becker, Alina A. Sonina, Igor P. Koskin, Inna K. Shundrina, Maxim S. Kazantsev
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引用次数: 0
Abstract
Aggregation-induced emission (AIE) materials are highly demanded for practical applications in optoelectronics, sensorics, material science and bio-imaging. However, highly torsionally-flexible and hybrid organic/inorganic AIE materials are limited. In this work we designed, synthesized and comprehensively studied AIE-active bis((9H-(4,5-diazafluoren)-9-ylidene)methyl)arylenes demonstrating high torsional freedom coupled with electron-accepting character and N,N′-chelating ability. One-rotor nonplanar structure of phenylene-linked derivative (BDFMP) allowed us to demonstrate its polymorphic diversity both in neat state and in coordination polymers. X-ray diffraction analysis indicated formation of crystals with extensive π-stacking interactions and slipped/side-by-side packing motifs, the former crystals demonstrating a photoluminescence quantum yield of 25 %. The reaction of both BDFMP/BDFMT with ZnCl2 resulted in formation of unique coordination polymers and porous metal organic frameworks with photoluminescence sensitive to heating and (de/re)hydratation. The latter effect was exploited for security painting and anti-counterfeiting demonstration.
期刊介绍:
Dyes and Pigments covers the scientific and technical aspects of the chemistry and physics of dyes, pigments and their intermediates. Emphasis is placed on the properties of the colouring matters themselves rather than on their applications or the system in which they may be applied.
Thus the journal accepts research and review papers on the synthesis of dyes, pigments and intermediates, their physical or chemical properties, e.g. spectroscopic, surface, solution or solid state characteristics, the physical aspects of their preparation, e.g. precipitation, nucleation and growth, crystal formation, liquid crystalline characteristics, their photochemical, ecological or biological properties and the relationship between colour and chemical constitution. However, papers are considered which deal with the more fundamental aspects of colourant application and of the interactions of colourants with substrates or media.
The journal will interest a wide variety of workers in a range of disciplines whose work involves dyes, pigments and their intermediates, and provides a platform for investigators with common interests but diverse fields of activity such as cosmetics, reprographics, dye and pigment synthesis, medical research, polymers, etc.