College of Chemistry and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China;
School of Chemistry and Chemical Engineering,Sun Yat-Sen University, Guangzhou 510275, China;
College of Chemistry and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China;
School of Chemistry and Chemical Engineering,Sun Yat-Sen University, Guangzhou 510275, China;
As42- dianion, aromaticity, DFT calculation, nucleus independent chemical shifts (NICS);