387844-17-9Relevant academic research and scientific papers
Molecular engineering of triphenylamine based aggregation enhanced emissive fluorophore: Structure-dependent mechanochromism and self-reversible fluorescence switching
Hariharan, Palamarneri Sivaraman,Prasad, Viki Kumar,Nandi, Surajit,Anoop, Anakuthil,Moon, Dohyun,Anthony, Savarimuthu Philip
, p. 146 - 155 (2017)
Triphenylamine (TPA), a propeller-shaped optoelectronic molecule, has been used to generate stimuli-responsive smart fluorescent organic materials and correlate the effect of subtle structural changes on the molecular packing and mechanochromic fluorescen
Mechanical force induced reversible fluorescence switching of two 3-aryl-2-cyano acrylamide derivatives
Song, Qingbao,Chen, Kang,Sun, Jingwei,Wang, Yongsheng,Ouyang, Mi,Zhang, Cheng
supporting information, p. 3200 - 3205 (2014/05/20)
Two structural-simple 3-aryl-2-cyano acrylamide derivatives (CDPA-E and CDPA-P) were synthesized and characterized by NMR, MS, IR, and single crystal. It was found that both of them exhibited obvious piezofluorochromic properties. The as-prepared yellow-green compounds were both converted to orange-red after grinding with a spatula. All the ground samples can be recovered to its original color by heating at 80 °C over 5 min or fuming with solvents like DCM, ethanol, ethyl acetate etc. The changes in fluorescence color can be attributed to the phase transition between crystalline (order) state and amorphous (disorder) state according to the Powder XRD spectrum. At the molecular level, the extension of the conjugation length and the formation of excimers are confirmed to account for the color transition of CDPA-P and CDPA-E, respectively. In addition, CDPA-P exhibited AIE activity which was caused by the restricted rotation of the molecules in the crystal state.
