Citation: Tian, Xinyu; Zhang, Xiaodong; Xiao, Yan; Wu, Xiaowen; Zhang, Bingbing; Yang, Daqing; Wu, Kui (2022). From oxides to oxysulfides: the mixed-anion GeS3O unit induces huge improvement in the nonlinear optical effect and optical anisotropy for potential nonlinear optical materials. RSC Advances, 12, pp. 16296-16300.