Inorganic Chemistry, Vol.56, No.12, 7230-7236, 2017
Two Barium Gold Iodates: Syntheses, Structures, and Properties of Polar BaAu(IO3)(5) and Nonpolar HBa4Au(IO3)(12) Materials
Two new barium gold iodates, namely, BaAu(IO3)(5) and HBa4Au(IO3)(12), have been prepared. BaAu(IO3)(5) crystallizes in the polar space group P2(1)/c, whereas HBa4Au(IO3)(12) crystallizes in the centrosymmetric space group P2(1)/c. BaAu(IO3)(5) consists of unique polar [Au(IO3)(4)]- anions whose four iodate groups are located at both sides of the AuO4 plane and the polarity points in the [00 (1) over bar] direction. BaAu(IO3)(5) displays strong second-harmonic-generation (SHG) effects about 0.6KTiOPO(4) (KTP) and is phase-matchable.