Linear Conjugated Systems Bearing Aromatic Terminal Groups. V. Syntheses and Electronic Spectra of 2,2′-, 3,3′-, and 9,9′-Diphenanthrylpoly-ynes
作者:Shuzo Akiyama、Masazumi Nakagawa
DOI:10.1246/bcsj.44.2237
日期:1971.8
2,2′-, 3,3′-, and 9,9′-Diphenanthrylpoly-ynes (Vn, VIn, and VIIn, n=1–6) were synthesized and their electronic spectra were measured. It was found that the longest-wavelength absorption maxima (λmax) in the spectra of each series of the diphenanthrylpoly-ynes (Vn, VIn and VIIn) shift linearly with the xth power of the number of acetylenic bond (n), [λmax∝nx], being x=1.3 for Vn and x=1.4 for VIn and
合成了 2,2'-、3,3'- 和 9,9'-二菲基多炔(Vn、VIn 和 VIIn,n=1-6)并测量了它们的电子光谱。发现各系列二菲基聚炔(Vn、VIn 和 VIIn)的光谱中最长波长吸收最大值(λmax)随炔键数(n)的 x 次方线性移动,[λmax∝ nx],对于 Vn,x=1.3,对于 VIn 和 VIIn,x=1.4。