Shentseva Irina A, Usoltsev Andrey N, Korobeynikov Nikita A, Sokolov Maxim N, Adonin Sergey A
Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Lavrentieva St. 3, 630090 Novosibirsk, Russia.
Irkutsk Favorsky Institute of Chemistry SB RAS, Favorsky St. 1, 664033 Irkutsk, Russia.
Dalton Trans. 2023 Dec 5;52(47):17752-17757. doi: 10.1039/d3dt02960c.
Seven heterometallic iodoantimonates with the general formula (Cat){[SbMI]} (M = Cu(I) (1-6), Ag(I) (7)) were prepared. X-ray diffraction data indicate that these compounds are the first Sb(III) representatives of the structural type previously known only for heterometallic iodobismuthates(III). In 3 and 4, halogen-substituted cations form halogen bonds with the heterometallic halometalate chain. 1-7 show prominent thermal stability. The estimated optical band gaps lie between 2.16 and 2.40 eV. As in heterometallic iodobismuthates, incorporation of Cu rather than Ag provides a much lower band gap.
制备了七种通式为(Cat){[SbMI]}的异金属碘锑酸盐（M = Cu(I) (1 - 6)，Ag(I) (7)）。X射线衍射数据表明，这些化合物是结构类型中首个仅以前已知的异金属碘铋酸盐(III)的Sb(III)代表物。在3和4中，卤素取代的阳离子与异金属卤金属酸盐链形成卤素键。1 - 7表现出显著的热稳定性。估计的光学带隙在2.16至2.40 eV之间。与异金属碘铋酸盐一样，掺入Cu而非Ag会提供低得多的带隙。
