A novel three-dimensional Sr-II coordination polymer based on benzene-1,2,4,5-tetracarboxylate: hydrothermal synthesis, crystal structure and spectroscopic and thermal studies

作者:Trifa Chahrazed; Mokhtari Samia; Bouacida Sofiane; Boudaren Chaouki; Boudraa Mhamed; Merazig Hocine
来源:Acta Crystallographica Section C-Structural Chemistry, 2017, 73(5): 369-U28.
DOI:10.1107/S2053229617003850

摘要

<jats:p>Coordination of the anions of benzenecarboxylic acids with metal cations leads to coordination polymers with various structural features. Very few examples of strontium-based structures have been reported. A new three-dimensional coordination polymer, namely poly[aqua(μ<jats:sub>12</jats:sub>-benzene-1,2,4,5-tetracarboxylato)distrontium(II)], [Sr<jats:sub>2</jats:sub>(C<jats:sub>10</jats:sub>H<jats:sub>2</jats:sub>O<jats:sub>8</jats:sub>)(H<jats:sub>2</jats:sub>O)]<jats:sub><jats:italic>n</jats:italic></jats:sub>, has been synthesized under hydrothermal conditions and characterized by thermal analysis, vibrational spectroscopy (Raman and IR), single-crystal X-ray diffraction and powder X-ray diffraction. The coordination geometries around the two independent Sr<jats:sup>II</jats:sup>ions can be described as a distorted dodecahedron and a distorted monocapped square antiprism. The compound features a three-dimensional structure containing inorganic motifs, with two-dimensional layers connected through organic linkers, and possesses a topologic structure of a binodal (6,12) connected alb net with the Schläfli symbol {4<jats:sup>15</jats:sup>}<jats:sub>2</jats:sub>{4<jats:sup>48</jats:sup>.6<jats:sup>18</jats:sup>}. The final product of thermal decomposition is strontium oxide (SrO).</jats:p>

  • 出版日期2017-5