Mechanochemical Synthesis, Photophysical Properties, and X-ray Structures of N-Heteroacenes
作者:Prasit Kumar Sahoo、Chandan Giri、Tuhin Subhra Haldar、Rakesh Puttreddy、Kari Rissanen、Prasenjit Mal
DOI:10.1002/ejoc.201600005
日期:2016.3
chromatographic purifications could be avoided after the solvent-free syntheses. The UV/Vis absorption spectra of the pyrazaacenes show intense absorption bands in the near-IR region. The single-crystal X-ray analyses of selected pyrazaacene derivatives showed pairwise π–π interactions and some C–H···π interactions, which could account for some of the photophysical features of the compounds in the solid
所描述的机械化学方法是概念验证的一个例子,在该方法中,在无溶剂球磨条件下实现了基于溶液的乏味、收率低且困难的吡氮杂并苯合成;该方法简单、高产、省时、环保。合成的化合物还包括吡氮杂并苯(N-杂并苯),它们是含有芘结构单元的辛苯类似物。该化合物微溶于普通溶剂,无溶剂合成后可避免柱层析纯化。吡氮杂并苯的紫外/可见吸收光谱在近红外区域显示出强烈的吸收带。选定的吡氮杂并苯衍生物的单晶 X 射线分析显示成对的 π-π 相互作用和一些 C-H…π 相互作用,