一系列1,4-二乙炔基苯(1)衍生物,H–C C–R–C C–H,R = C 6 H 3 NH 2 (2),C 6 H 3 F(3),C 6 H 2 F 2 -2,5(4),C 6 F 4 (5),C 6 H 2(OCH 3)2 -2,5(6)和C 6 H 2(O n C 8 H 17)2 -2,5(7)已被合成,并且其晶体结构确定由单晶(2 - 5)或粉末(6,7)的X射线衍射。与c CH⋯π Ç Ç氢键支配结构1被逐渐被C代替CH⋯˚F那些与氟化的增加(3 → 5),或完全被C代替CH⋯N和NH⋯π Ç Ç键在2和C CH⋯O在6和7中。相关的铂基聚合物,反式-[– Pt(P n Bu 3)2 –C C–R–C C–] n (R =如上,C 6 H 4)已制备并通过光谱法和热重分析表征,表明氨基-和甲氧基衍生物具有最低的热稳定性,而氟化衍生物显示出随着氟化作用的增加而增加的热稳定性。光
一系列1,4-二乙炔基苯(1)衍生物,H–C C–R–C C–H,R = C 6 H 3 NH 2 (2),C 6 H 3 F(3),C 6 H 2 F 2 -2,5(4),C 6 F 4 (5),C 6 H 2(OCH 3)2 -2,5(6)和C 6 H 2(O n C 8 H 17)2 -2,5(7)已被合成,并且其晶体结构确定由单晶(2 - 5)或粉末(6,7)的X射线衍射。与c CH⋯π Ç Ç氢键支配结构1被逐渐被C代替CH⋯˚F那些与氟化的增加(3 → 5),或完全被C代替CH⋯N和NH⋯π Ç Ç键在2和C CH⋯O在6和7中。相关的铂基聚合物,反式-[– Pt(P n Bu 3)2 –C C–R–C C–] n (R =如上,C 6 H 4)已制备并通过光谱法和热重分析表征,表明氨基-和甲氧基衍生物具有最低的热稳定性,而氟化衍生物显示出随着氟化作用的增加而增加的热稳定性。光
Efficient Quenching of a Guanidinium-Containing Fluorescence Sensor
作者:Wayne N. George、Mark Giles、Iain McCulloch、Joachim H. G. Steinke、John C. deMello
DOI:10.1002/cphc.201000943
日期:2011.3.14
Quenching: A novel water‐soluble guanidinium‐containing phenylene‐ethynylene‐based fluorescencesensor (see picture) is reported with a two‐fold improvement in sensitivity to electron‐deficient quenchers compared to an equivalent alkoxy‐substituted phenylene‐ethynylene‐based sensor.
Discovery of New Fluorescent Materials from Fast Synthesis and Screening of Conjugated Polymers
作者:Olivier Lavastre、Ilya Illitchev、Gwenaelle Jegou、Pierre H. Dixneuf
DOI:10.1021/ja025764o
日期:2002.5.1
A combinatorial approach was developed for the synthesis and the screening of a large variety of conjugated polymers. The parallel synthesis of 96 polyaryleneethynylene derivatives was performed on a 12 x 8 format from diethynyl and dibromoaryl building blocks, via a palladium-catalyzed carbon-carbon coupling reaction. The qualitative distinction between fluorescent and nonfluorescent polymers as well as between the different emission colors were obtained from a simple visual test or via a 96-well plate reader spectrofluorimeter. New solid-state blue-emitting polymers were detected.