Synthesis, Crystal Structures, and Photophysical Properties of Electron-Accepting Diethynylindenofluorenediones
作者:Bradley D. Rose、Daniel T. Chase、Christopher D. Weber、Lev N. Zakharov、Mark C. Lonergan、Michael M. Haley
DOI:10.1021/ol200525g
日期:2011.4.15
A series of 6,12-bis[(trialkylsilyl)ethynyl]indeno[1,2-b]fluorene-5,11-diones has been synthesized. X-ray crystallographic analysis of these compounds reveals that triisopropylsilyl (TIPS) substitution on the alkyne terminus affords the largest number of intermolecular π−π interactions in the solid state. Conversely, use of trialkylsilyl groups smaller or larger than TIPS furnishes a variety of crystal-packing
合成了一系列的6,12-双[(三烷基甲硅烷基)乙炔基]茚并[1,2 - b ]芴-5,11-二酮。这些化合物的X射线晶体学分析表明,炔烃末端上的三异丙基甲硅烷基(TIPS)取代提供了固态的最大分子间π-π相互作用。相反,使用小于或大于TIPS的三烷基甲硅烷基可提供各种包含较少π-π相互作用的晶体堆积基序。电化学和光物理数据表明,这些分子是极好的电子接受材料。