Synergetic Alkoxy <scp>Side‐Chain</scp> and <scp>Chlorine‐Contained</scp> End Group Strategy toward High Performance <scp>Ultra‐Narrow</scp> Bandgap Small Molecule Acceptors
作者:Qingya Wei、Songting Liang、Beibei Qiu、Wei Liu、Xiang Xu、Xinhui Lu、Yuang Fu、Jun Yuan、Yingping Zou
DOI:10.1002/cjoc.202300201
日期:2023.10.15
near-infrared (NIR) absorption. In this work, a synergetic alkoxy side-chain and chlorine-contained end group strategy is employed to achieve A-DA'D-A type ultra-NBG SMAs by introducing alkoxy chains with oxygen atom at the second position into the thiophene β position as well as replacing the F atoms with Cl atoms in the end group. As a result, the heptacyclic BZO-4F shows a redshiftedabsorption onset (960