Synthesis and Properties of Annulated 2-(Azaar-2-yl)- and 2,2'-Di(azaar-2-yl)-9,9'-spirobifluorenes
作者:Jing Liang、Hyochang Cha、Yurngdong Jahng
DOI:10.3390/molecules181113680
日期:——
2-amino-arenecarbaldehydes such as 2-aminobenzaldehyde, 2-aminonicotinealdehyde, 1-amino-2-naphthaldehyde, and 8-aminoquinoline-7-carbaldehyde. In addition to the absorption maxima based on the parent 9,9'-spirobifluorene skeleton in the 225–234, 239–280, 296–298, and 308–328 nm regions, the absorptions due to the π-π* transitions of the heterocycles were observed in the 351–375 nm region in the UV absorption spectra
通过 8,9-二氢螺(苯并[b]芴-11,9'-芴)-6(7H)-one 和 8,8 ',9,9'-四氢-11,11'-螺双(苯并[b]芴)-6,6'(7H,7'H)-二酮与一系列2-氨基-芳烃甲醛如2-氨基苯甲醛、2-氨基烟碱醛、1-氨基-2-萘醛和8-氨基喹啉-7-甲醛。除了基于母体 9,9'-螺二芴骨架在 225–234、239–280、296–298 和 308–328 nm 区域的吸收最大值之外,由于 π-π* 跃迁的吸收在紫外吸收光谱的 351-375 nm 区域观察到杂环。所有化合物在 390-430 nm 区域都显示出强烈的光致发光。