| Abstract: | A new polyoxomolybdate compound [Ag3(HL)4](PMol204o)] 1 (HE = 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 trielinie,space group P(1) with a = 10.375(3),b = 12.076(3),c= 13.196(4) (A°),α= 84.170(4),β =71.961(3),γ = 86.326(4)°,V = 1563.1(7) (A°)3,C32H28Ag3Mo12N12O40P,Mr= 2726.52,Dc = 2.897g/cm3,μ(MoKα) = 3.366 mm-1,F(000) = 1284,Z = 1,the final R = 0.0587 and wR = 0.1312 for 4139 observed reflections (Ⅰ ＞ 2σ(I)). X-ray diffraction analyses reveal that the PMo12O403- clusters in compound 1 are linked by four Ag3(HL)43+ units via the terminal oxygen atoms to form a two-dimensional architecture. The symmetrical unit of Ag3(HL)43+ exhibits two distinct Ag(Ⅰ)environments:a two-coordinate {AgN2} site and a five-coordinate {AgN3O2} site which links to two molybdate clusters. |
