Calix[4]arene-Functionalized Naphthalene and Perylene Imide Dyes
作者:Myroslav O. Vysotsky、Volker Böhmer、Frank Würthner、Chang-Cheng You、Kari Rissanen
DOI:10.1021/ol026402o
日期:2002.8.1
[reaction: see text] Calix[4]arenes bearing one, two, or four 1,8-naphthyl imide groups at the wide rim and bis-calix[4]arenes connected via perylene-bisimide dye spacers have been synthesized. The low-temperature NMR spectrum of the tetranaphthylimide suggests, in agreement with a crystal structure, a C2-symmetrical pinched cone conformation stabilized via face-to-face pi-pi interactions between opposite