Hydroxydialkylamino Cruciforms: Amphoteric Materials with Unique Photophysical Properties
作者:Psaras L. McGrier、Kyril M. Solntsev、Anthony J. Zucchero、Oscar R. Miranda、Vincent M. Rotello、Laren M. Tolbert、Uwe H. F. Bunz
DOI:10.1002/chem.201002865
日期:2011.3.7
Two amphoteric cruciforms 6 and 7 (XF; 4,4′‐[(1E,1′E)‐(2,5‐bis[4‐(dibutylamino)phenyl]ethynyl}‐1,4‐phenylene)bis(ethene‐2,1‐diyl)]diphenol, 4,4′‐[2,5‐bis[(E)‐4‐(dibutylamino)styryl]‐1,4‐phenylene}bis(ethyne‐2,1‐diyl)]diphenol) were prepared by a Horner reaction followed by a Sonogashira coupling and subsequent deprotection. The XFs display significant changes in absorption and emission when exposed
两个两性十字形6和7(XF; 4,4'-[((1 E,1'E))-(2,5-双[4-(二丁基氨基)苯基]乙炔基} -1,4-亚苯基)bis(乙烯-2,1-二基]]二酚,4,4'-[2,5-双[[ E)-4-(二丁基氨基)苯乙烯基] -1,4-亚苯基}双(乙炔-2,1-通过霍纳反应,随后的Sonogashira偶联和随后的脱保护反应来制备二甲酰基]二酚)。XFs暴露于三氟乙酸,氢氧化四丁铵和金属三氟甲磺酸酯时,在吸收和发射方面显示出显着变化。6和7的替换模式导致前沿分子轨道的空间分离,这使得XF的HOMO或LUMO可以由酸性或碱性试剂独立处理。XF 6在苯乙烯轴上具有羟基,在八种不同溶剂中接触十种胺后,其发射颜色会发生变化。通过线性判别分析来分析添加胺后的荧光变化。这些XF在金属阳离子和胺的传感器应用中可能具有潜力。