摘要

A new polyoxomolybdate compound [Ag-3(HL)(4)](PMo12O40] 1 (HL = 3-(2-pyridyl)pyrazole) has been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction, elemental analyses, TG and IR spectroscopy. The compound crystallizes in triclinic, space group Pi with a = 10.375(3), b = 12.076(3), c = 13.196(4) angstrom, alpha = 84.170(4), beta = 71.961(3), gamma = 86.326(4)degrees, V = 1563.1(7) angstrom(3), C32H28Ag3Mo12N12O40P, M-r = 2726.52, D-c = 2.897 g/cm(3), mu(MoK alpha) = 3.366 mm(-1), F(000) = 1284, Z = 1, the final R = 0.0587 and wR = 0.1312 for 4139 observed reflections (I > 2 sigma(I)). X-ray diffraction analyses reveal that the PMo12O403- clusters in compound 1 are linked by four Ag-3(HL)(4)(3+) units via the terminal oxygen atoms to form a two-dimensional architecture. The symmetrical unit of Ag-3(HL)(4)(3+) exhibits two distinct Ag(I) environments: a two-coordinate {AgN2} site and a five-coordinate {AgN3O2} site which links to two molybdate clusters.

  • 出版日期2011
  • 单位齐鲁师范学院; 通化师范学院