4316-57-8Relevant articles and documents
Metal-organic frameworks derived CuONPs@C nanocatalysts for synthesizing optoelectronic triarylamine molecules
Kundu, Anu,Kumar, Vadivel Vinod,Anthony, Savarimuthu Philip
, (2020/11/05)
Carbon encapsulated copper oxide nanoparticles (CuONPs@C) fabricated using copper metal organic frameworks (Cu-MOFs) used as reusable nanocatalysts in Ullmann C[sbnd]N coupling reactions for synthesizing optoelectronic triphenylamine (TPA) and carbazole (CBZ) derivatives. The formation of CuONPs in carbon matrix was confirmed by powder X-ray diffraction (PXRD), X-ray photoelectron spectroscopy (XPS) and high-resolution transmission electron microscopy (HR-TEM). The catalytic activity of CuONPs@C was performed with diphenylamine/carbazole with substituted aryl halides in presence of mild K2CO3 base that produced triarylamines with 63–83% yields. Carbazole triarylamines exhibited strong solid state fluorescence (Φf = 14.54–36.32%) with λmax between 370 and 420 nm.
Emergence of Aggregation Induced Emission (AIE), Room-Temperature Phosphorescence (RTP), and Multistimuli Response from a Single Organic Luminogen by Directed Structural Modification
Chatterjee, Abhijit,Chatterjee, Joy,Sappati, Subrahmanyam,Sheikh, Tariq,Umesh, Rintu M.,Ambhore, Madan D.,Lahiri, Mayurika,Hazra, Partha
, p. 12832 - 12846 (2021/11/24)
Multifunctional organic luminogens exhibiting simultaneous aggregation induced emission (AIE), room-temperature phosphorescence (RTP), and mechanochromism have recently attracted considerable attention owing to their potential applications in optoelectronics and bioimaging. However, a comprehensive correlation among these three distinguished properties is yet to be unveiled, which will help to decipher defined methodologies to design future generation multifunctional organic materials. Herein, we have demonstrated a route to obtain a multifunctional organic luminogen, starting from an ACQphore (TPANDI) by simple structural engineering. We have shown that a slight reduction in length of the planar acceptor moieties can effectively inhibit the undesirable π-πstacking interaction between molecules in the condensed state and thereby cause an ACQ to AIE type transformation from TPANDI to TPANMI and TPAPMI. Both TPANMI and TPAPMI exhibit RTP properties (even in ambient condition) because of the presence of a reasonably low singlet-triplet energy gap (δEST). In our study, these two luminogens were found to be mechano-inactive. Interestingly, an insertion of cyano-ethylene group and benzene linker in between the triphenylamine and phthalimide moieties introduced another luminogen TPACNPMI, which can simultaneously exhibit AIE, RTP, and mechanochromic properties.
Ferrocene modified triphenylamine derivative electrochromic composite material and preparation method thereof (by machine translation)
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Page/Page column 6; 10; 12; 14, (2020/02/17)
The invention discloses a ferrocene modified triphenylamine derivative compound electrochromism material and a preparation method thereof,and the preparation method 4 - comprises the following steps: firstly, the preparation method of the ferrocene-containing diphenylamine dimer comprises the, following steps: firstly, carrying out an oxidation-reduction 4,4' - reaction with perchloric acid; copper 4,4' - 4,4' - Vilsmerier . (by machine translation)