Syntheses and crystal structures of two new heteropolyoxometalates consisting of octamolybdate anions
Two new polyoxomolybdate compounds, [ZnII(Hppz)3]2(Mo8O26) (1) and [NiII(bpy2]2(Mo8O26) (2) (Hppz: 3-(2-pyridyl)pyrazole); bpy: 2,2'-bipyridine), were synthesized under hydrothermal conditions. X-ray diffraction analyses reveal that 1 consists of one -octamolybdate and one ZnII [image omitted]. Compound 2 consists of one α-octamolybdate linked by two Ni [image omitted] complexes via terminal oxygen bridges. Crystal data of 1: C24H21Mo4N9O13Zn, M = 1092.63, monoclinic, P21/n, a = 12.4456(18), b = 16.231(2), c = 17.710(3) Å, = 109.883(2)°, V = 3364.4(9) Å3, Z = 4, Dcalcd = 2.157 g cm-3, F(000) = 2120, = 2.229 mm-1, R1 = 0.0394 and wR2 = 0.1139 (I > 2(I)); Crystal data of 2: C40H32Mo8N8Ni2O26, M = 1925.68, triclinic, P-1, a = 10.1608(5), b = 11.6091(6), c = 13.8789(7) Å, α = 114.2120(10)°, = 95.8650(10)°, = 102.7460(10)°, V = 1421.75(12) Å3, Z = 1, Dcalcd = 2.249 g cm-3, F(000) = 928, = 2.435 mm-1, R1 = 0.0220 and wR2 = 0.0741 (I > 2(I)).
Keywords: Nickel; Octamolybdate; Polyoxomolybdate; X-ray analysis; Zinc
Document Type: Research Article
Affiliations: 1: Department of Chemistry and Chemical Engineering, Advanced Material Institute of Research, Qilu Normal University, Jinan 250013, China,College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China 2: College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China 3: Department of Chemistry and Chemical Engineering, Advanced Material Institute of Research, Qilu Normal University, Jinan 250013, China
Publication date: 01 December 2010
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