Citation: Hao, Xia; Luo, Min; Lin, Chensheng; Lin, Donghong; Cao, Liling; Ye, Ning (2019). RE(H2C3N3O3)2·(OH)·xH2O (RE = La, Y and Gd): potential UV birefringent materials with strong optical anisotropy originating from the (H2C3N3O3)- group.. Dalton transactions (Cambridge, England : 2003), 48, pp. 12296-12302.