Mo<sup>6+</sup> Cation Enrichment of the Structure\nChemistry of Iodates: Syntheses, Structures, and Calculations of Ba(MoO<sub>2</sub>)<sub>2</sub>(IO<sub>3</sub>)<sub>4</sub>O, Ba<sub>3</sub>[(MoO<sub>2</sub>)<sub>2</sub>(IO<sub>3</sub>)<sub>4</sub>O(OH)<sub>4</sub>]·2H<sub>2</sub>O, and Sr[(MoO<sub>2</sub>)<sub>6</sub>(IO<sub>4</sub>)<sub>2</sub>O<sub>4</sub>]·H<sub>2</sub>O
Yahui Li (315104)Hongping Wu (1568653)Bingbing Zhang (414104)Zhihua Yang (47183)Guopeng Han (4637482)Shilie Pan (1431682)
Abstract
The three metal iodates Ba(MoO<sub>2</sub>)<sub>2</sub>(IO<sub>3</sub>)<sub>4</sub>O (<b>1</b>), Ba<sub>3</sub>[(MoO<sub>2</sub>)<sub>2</sub>(IO<sub>3</sub>)<sub>4</sub>O(OH)<sub>4</sub>]·2H<sub>2</sub>O (<b>2</b>),\nand Sr[(MoO<sub>2</sub>)<sub>6</sub>(IO<sub>4</sub>)<sub>2</sub>O<sub>4</sub>]·H<sub>2</sub>O (<b>3</b>) have been successfully\nsynthesized by introducing second-order\nJahn–Teller distorted Mo<sup>6+</sup> cations by a mild hydrothermal\nmethod. Single-crystal X-ray diffraction (XRD) was used to determine\nthe structures of the three title compounds. In compound <b>1</b>, the [Mo<sub>2</sub>O<sub>11</sub>]<sup>10–</sup> dimers\nconnect with the [IO<sub>3</sub>]<sup>−</sup> units by sharing\noxygen atoms to form two-dimensional (2D) layers that are separated\nby the Ba<sup>2+</sup> cations. For comparison, the [Mo<sub>2</sub>O<sub>11</sub>]<sup>10–</sup> dimers and the [IO<sub>3</sub>]<sup>−</sup> units are isolated in compound <b>2</b>, and they are connected by the [BaO<sub>11</sub>]<sup>20–</sup> polyhedra forming a 3D network. For compound <b>3</b>, the\n[MoO<sub>6</sub>]<sup>6–</sup> polyhedra link with each other\nby corner and edge sharing to build 2D corrugated layers with tunnels\ncontaining isolated [IO<sub>4</sub>]<sup>3–</sup> units. The\n[SrO<sub>9</sub>]<sup>16‑</sup> polyhedra link the 2D corrugated\nlayers to form a 3D network. The infrared (IR) spectra, the ultraviolet–visible–near-infrared\n(UV–vis–NIR) diffuse reflectance spectra, and thermal\nstabilities of compounds <b>1</b> and <b>2</b> are presented.\nIn addition, the theoretical calculations are also carried out to\nevaluate their band gaps and density of states.
Metrics
Topics
Related Documents
New Vanadium Selenites:\nCentrosymmetric Ca<sub>2</sub>(VO<sub>2</sub>)<sub>2</sub>(SeO<sub>3</sub>)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>, Sr<sub>2</sub>(VO<sub>2</sub>)<sub>2</sub>(SeO<sub>3</sub>)<sub>3</sub>, and Ba(V<sub>2</sub>O<sub>5</sub>)(SeO<sub>3</sub>), and Noncentrosymmetric and Polar\nA<sub>4</sub>(VO<sub>2</sub>)<sub>2</sub>(SeO<sub>3</sub>)<sub>4</sub>(Se<sub>2</sub>O<sub>5</sub>) (A = Sr<sup>2+</sup> or Pb<sup>2+</sup>)
Jeongho Yeon (1406326)Sang-Hwan Kim (527119)Sau Doan Nguyen (1985821)Hana Lee (445860)P. Shiv Halasyamani (1261704)
Influence of Hydrogen Bonding on the Assembly of Six-Membered Vanadium\nBorophosphate Cluster Anions: Synthesis and Structures of\n(NH<sub>4</sub>)<sub>2</sub>(C<sub>2</sub>H<sub>10</sub>N<sub>2</sub>)<sub>6</sub>[Sr(H<sub>2</sub>O)<sub>5</sub>]<sub>2</sub>[V<sub>2</sub>P<sub>2</sub>BO<sub>12</sub>]<sub>6</sub>·10H<sub>2</sub>O,\n(NH<sub>4</sub>)<sub>2</sub>(C<sub>3</sub>H<sub>12</sub>N<sub>2</sub>)<sub>6</sub>[Sr(H<sub>2</sub>O)<sub>4</sub>]<sub>2</sub>[V<sub>2</sub>P<sub>2</sub>BO<sub>12</sub>]<sub>6</sub>·17H<sub>2</sub>O, and\n(NH<sub>4</sub>)<sub>3</sub>(C<sub>4</sub>H<sub>14</sub>N<sub>2</sub>)<sub>4.5</sub>[Sr(H<sub>2</sub>O)<sub>5</sub>]<sub>2</sub>[Sr(H<sub>2</sub>O)<sub>4</sub>][V<sub>2</sub>P<sub>2</sub>BO<sub>12</sub>]<sub>6</sub>·10H<sub>2</sub>O
Junghwan Do (2102317)Ranko P. Bontchev (2425492)Allan J. Jacobson (1644922)
New d<sup>0</sup> Transition Metal Iodates: Synthesis, Structure, and\nCharacterization of BaTi(IO<sub>3</sub>)<sub>6</sub>, LaTiO(IO<sub>3</sub>)<sub>5</sub>, Ba<sub>2</sub>VO<sub>2</sub>(IO<sub>3</sub>)<sub>4</sub>·(IO<sub>3</sub>),\nK<sub>2</sub>MoO<sub>2</sub>(IO<sub>3</sub>)<sub>4</sub>, and BaMoO<sub>2</sub>(IO<sub>3</sub>)<sub>4</sub>·H<sub>2</sub>O
Kang Min Ok (1412836)P. Shiv Halasyamani (1261704)
Experimental Study of Ba<sub>7</sub>Fe<sub>4</sub>O<sub>13</sub>, Ba<sub>3</sub>Fe<sub>2</sub>O<sub>6</sub>, Ba<sub>2</sub>Fe<sub>2</sub>O<sub>5</sub>, BaFe<sub>2</sub>O<sub>4 </sub>Barium Ferrites
Д.А. ВинникM.V. SudarikovВ.Е. Живулин
Bis[tetraruthenium(IV)]-Containing\nPolyoxometalates:\n[{Ru<sup>IV</sup><sub>4</sub>O<sub>6</sub>(H<sub>2</sub>O)<sub>9</sub>}<sub>2</sub>Sb<sub>2</sub>W<sub>20</sub>O<sub>68</sub>(OH)<sub>2</sub>]<sup>4–</sup> and [{Ru<sup>IV</sup><sub>4</sub>O<sub>6</sub>(H<sub>2</sub>O)<sub>9</sub>}<sub>2</sub>{Fe(H<sub>2</sub>O)<sub>2</sub>}<sub>2</sub>{β-TeW<sub>9</sub>O<sub>33</sub>}<sub>2</sub>H]<sup>−</sup>
IrinaV. Kalinina (2064703)Natalya V. Izarova (2012452)Ulrich Kortz (1290630)