Tunable Fluorophores Based on 2-(<i>N</i>-Arylimino)pyrrolyl Chelates of Diphenylboron: Synthesis, Structure, Photophysical Characterization, and Application in OLEDs
作者:D. Suresh、Patrícia S. Lopes、Bruno Ferreira、Cláudia A. Figueira、Clara S. B. Gomes、Pedro T. Gomes、Roberto E. Di Paolo、António L. Maçanita、M. Teresa Duarte、Ana Charas、Jorge Morgado、Maria José Calhorda
DOI:10.1002/chem.201303607
日期:2014.4.1
has a planar aryliminopyrrolyl ligand, except when prevented by steric hindrance (ortho substituents). Calculated absorption maxima reproduce the experimental values, but the error is higher for the emission wavelengths. Organic light‐emitting diodes (OLEDs) have been fabricated with the new boron complexes, with luminances of the order of 3000 cd m−2 being achieved for a green‐emitting device.
2-(N-芳基氨基)吡咯(HNC 4 H 3 C(H)N-Ar)与三苯基硼(BPh 3)在沸腾的甲苯中的反应产生了各自的高发射态N,N'-硼螯合物,[BPh 2 κ 2 ñ,N' -NC 4 H ^ 3 C(H)N基-Ar}](AR = C 6 H ^ 5(12),2,6--ME 2 -C 6 H ^ 3(13),2, 6‐ i Pr 2‐ C 6 H 3(14),4-OMe-C 6 H 4(15),3,4-Me 2 -C 6 H 3(16),4-F-C 6 H 4(17),4-NO 2 -C 6 H 4(18),4‐CN‐C 6 H 4(19),3,4,5‐F 3 ‐ C 6 H 2(20)和C 6 F 5(21))中到高产。这些新的硼配合物的光物理性质很大程度上取决于其N-芳基胺基团芳基环上存在的取代基。轴承吸电子苯胺的取代基的复合物17 - 20显示更强烈(例如,φ ˚F = 0