herein the synthesis and photophysics of 2,2′-bipyridine-3,3′-diol-5,5′-dicarboxylic acid ethyl ester (BP(OH)2DCEt2), an excited state intramolecular proton transfer (ESIPT)-based fluorophore featuring two identical intramolecular hydrogen bonds. BP(OH)2DCEt2 emits efficiently not only in solution, including protic solvents (λem = 521 nm, Φf = 40 to 75%), but also in crystalline state (λem = 530 nm, Φf
我们在这里介绍了
2,2'-联吡啶-3,3'
-二醇-5,5'-二
羧酸乙酯(BP(OH)2 DCEt 2)的合成和光物理,一种激发态的分子内质子转移(ESI
PT)基荧光团,具有两个相同的分子内氢键。BP(OH)2 DCEt 2次发射有效地不仅在溶液中,包括质子性溶剂(λ
EM = 521纳米,Φ ˚F = 40〜75%),而且在结晶状态(λ
EM = 530纳米,Φ ˚F = 51% )。另外,它的皂化形式(
钠2 BP(OH)2 DC)在
水中是高度荧光(λ
EM= 490纳米,Φ ˚F = 51%)。最后,在OLED器件中还证明了BP(OH)2 DCEt 2的良好电致发光性能。