New vanadium tellurites: Syntheses, structures, optical properties of noncentrosymmetric VTeO4(OH), centrosymmetric Ba2V4O8(Te3O10)

VTeO4(OH) (1) crystallizes in the noncentrosymmetric space group Pca21 (No. 29) while Ba2V4O8(Te3O10) (2) crystallizes in the centrosymmetric space group C2/c (No. 15).420