Polar lanthanide copper iodates LnCu(IO3)5 (Ln = La, Ce, Pr, and Nd): Synthesis, crystal structure and characterization

Crystal structure and X-ray powder diffraction data of barium copper iodate Ba2Cu(IO3)6

“…The Cu 2+ ion possesses a partially filled d -orbital and usually occupies a distorted octahedral CuO 6 coordination geometry; hence, the combination of copper cations with iodate groups is expected to form novel structures with various connection fashion of CuO 6 units, and may further afford interesting magnetic properties. As far, only seven Cu-containing quaternary iodates, NaCu(IO 3 ) 3 (Sen Gupta et al, 1987), AgCu(IO 3 ) 3 (Wang et al, 2017), KCu(IO) 3 (Mitoudi-Vagourdi et al, 2019), and Ln Cu(IO 3 ) 5 ( Ln = La, Ce, Pr, and Nd) (Geng et al, 2022), have been reported. In this study, a new Cu-containing quaternary iodate, namely, Ba 2 Cu(IO 3 ) 6 , has been synthesized.…”