A three-dimensional zincic molybdenum (V) phosphate with helical chani Synthesis, structure, and electrochemical properties

摘要

A new reduced zincic molybdophosphate, (H2bpp)3[Zn3Mo_(12)~VO_(24)(OH)6(H2O)2(HPO4)6(PO4)2] ·2H2O1 (bpp = 1,3-bis(4-pyridyl)propane) has been hydrothermally synthesized and characterized by elemental analysis, IR, TG, and single-crystal X-ray diffraction. Compound 1 crystallizes in the tetragonal space group 141/a c d with a=31.8033(4) A, b = 31.8033(4) A, c = 34.5593(8) A, V=34955.0(10) A~3, and Z=16 and exhibits a 4,6-connected 3-D framework with (3~2.8~4)(3~4.4~2.8~33~5.10) topology. The basic building blocks of [Zn(2)(Mo6P4)2] are linked through [Zn(3)O6] octahedra and [Zn(1)O4] tetrahedra to construct 1-D chains along four different directions. Such 1-D chains are further connected by [Zn(1)O4]~(2+) linkers to form a 3-D intricate framework with helical channels occupied by protonated bpp and water molecules. Additionally, the electrochemical property of the 1-CPE has been studied in detail.