Structural Tuning of Boron Difluoride Formazanate Electrochemiluminescence Mediated by Tri-n-propylamine

摘要: Electrochemistry and electrogenerated chemiluminescence (ECL) of boron difluoride formazanate complexes bearing p-methoxyphenyl N-substituents were studied experimentally computationally. It was shown that the substituents at 3-position (R3) backbone play a critical role in electrochemistry ECL presence tri-n-propylamine (TPrA). The emission 1a (R3 = cyano), 1b phenyl), 1c p-C6H4OMe) occurred peak wavelengths 724 nm (1.71 eV), 704 (1.76 723 consistent with their photoluminescence maxima. maximum quantum yields, determined relative to [Ru(bpy)3]2+/TPrA system, 450% for 1a, 244% 1b, 94% 1c, respectively. relatively large Stokes shifts 1a–1c linked flattening these molecules which accompanies electronic excitation. Through use spooling spectroscopy, it demonstrated intensity energies f...