Vapochromic Fluoresccence of Amorphous Molecular Materials Based on Diarylbenzaldehyde

Vapochromic Fluorescence Observed for Emitting Amorphous Molecular Materials: Synthesis and Emitting Properties of 3-{4-[Bis(4-methylphenyl)amino]phenylcarbonyl}-6-{4-[bis(4-methylphenyl)amino]phenyl}-3,5-dimethyl-3,4-dihydro-2H-pyran

“…For both BMABA and BBMP films, the fluorescense maxima shifted to longer wavelength with increasing polarity of the exposed solvent vapor. As reported in our previous paper [21], the spectrum of the BMABA film upon exposure to the vapor of the organic solvent was almost similar to that in the corresponding solution, that is the slope of the plots shown in Fig. 4c was similar to that shown in Fig.…”

“…We have been made a part of studies of the creation of organic low molecular-mass materials that readily form amorphous glasses, namely amorphous molecular materials [12][13][14][15][16], and in due course we have found that 4-[bis(4-methylphenyl)-amino]benzaldehyde (BMABA) and 4-[bis(4-methylphenyl)amino]acetophenone (BMAAP) exhibited solvatochromic fluorescence, mechanochromic fluorescence [17,18], AIE [19,20], and vapochromic fluorescence [21]. …”

Vapochromic Emission Observed for Amorphous Molecular Materials: Emitting Properties of <i>N</i>,<i>N</i>-Bis(9,9-dimethylfluoren-2-yl)-4-nitroaniline

“…We have been made a part of studies of the creation of organic low molecular-mass materials that readily form amorphous glasses, namely amorphous molecular materials [5][6][7][8][9], and in due course we have found that 4-[bis(4-methylphenyl)amino]benzaldehyde and 4-[bis(4-methylphenyl)amino]acetophenone exhibited solvatochromic and vapochromic emissions [10][11][12]. These materials were also found to exhibit aggregation induced emission enhancement [13,14].…”

Emission Properties of Hybrid Films of Benzylideneaniline-based Amorphous Molecular Materials with Organic Acids

“…We have been studying the creation of stimuliresponsive emitting amorphous molecular materials [8][9][10][11][12]. For example, we have reported that spincoated films of diarylaminobenzaldehyde-based emitting amorphous molecular materials exhibited vapochromic emission [11].…”

“…We have been studying the creation of stimuliresponsive emitting amorphous molecular materials [8][9][10][11][12]. For example, we have reported that spincoated films of diarylaminobenzaldehyde-based emitting amorphous molecular materials exhibited vapochromic emission [11]. In addition to such materials with single component systems, we have recently been studying the creation of hybrid systems of amorphous molecular materials with other materials exhibiting smart functions [13][14][15][16][17][18][19][20][21][22][23].…”