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Xiao-Bing Cui Ji-Qing Xu Ying-Hua Sun Yang Guo-Yu 《Journal of Molecular Structure》2003,655(1):207-213
The compound (enH2)3.5[As8V14O42(PO4)]·2H2O 1 (en=ethylenediamine) has been synthesized and characterized by means of elemental analysis, IR spectrum, ESR spectrum, XPS spectrum, TG analysis and single crystal X-ray diffraction analysis. The compound 1 crystallizes in monoclinic system, space group C2/c, β=105.59(3), Z=8 and R1(wR2)=0.0398(0.0885). The compound 1 is constructed from [As8V14O42(PO4)]7− anions and H2en cations linked through hydrogen bonds into a network. The [As8V14O42(PO4)]7− cluster consists of 14 VO5 square pyramids linked by 4 As2O5 handle-like units, and includes at its center an ordered PO43− anion. 相似文献
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Yanfei Qi Hua Jin Zhiming Zhang Xinglong Wang Song Chang 《Journal of solid state chemistry》2007,180(1):382-389
Two novel organic-inorganic hybrid arsenic-vanadates, [{Ni(en)2}4(4,4′-bipy)4{Ni(H2O)2}]2[As8V14O42(NO3)]4·16H2O 1 and [Ni(en)2(H2O)2]2[{Ni(en)2(H2O)}2As8V14O42(NO3)][{Ni(en)2}As8V14O42(NO3)]·6H2O 2 are reported in this study. Crystal data for compound 1: Tetragonal, I4/m, a=27.507(4) Å, b=27.507(4) Å, c=22.101(4) Å; V=16722(5) Å3, Z=2, R(final)=0.0508. Crystal data for compound 2: Triclinic, P-1, a=11.530(2) Å, b=14.883(3) Å, c=21.330(4) Å, α=76.94(3)°, β=76.58(3)°, γ=69.54(3)°, V=3293.4(1) Å3, Z=1, R(final)=0.0559. The boxlike structure of compound 1 is designed from [{Ni(en)2}4(4,4′-bipy)4{Ni(H2O)2}] sheets pillared by [α-As8V14O42] clusters, which represents the first mixed-organic ligand-decorated tetrameric As-V-O cluster. Compound 2 is constructed from the rarely [β-As8V14O42] clusters and Ni coordination complex fragments. The electrochemical property and magnetic property of compound 1 have been studied. 相似文献
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《Journal of Coordination Chemistry》2012,65(13):1403-1418
Four novel organic–inorganic hybrid arsenic-vanadate complexes, [Cu(phen)][(AsVO4)(VV 3O7)(H2O)] (1), [Cu(en)2]2[As8V14O42(H2O)]?·?2.5H2O (2), [M(1,10-phen)3]2[As8V14O42(H2O)0.5]?·?0.5H2O (M?=?Mn, 3, Cd, 4) (1,10-phen?=?1,10-phenanthroline) have been hydrothermally synthesized for the first time and characterized by elemental analyses, XPS spectra, EPR spectra, IR spectra, TG analyses and single crystal X-ray diffraction. The structure of compound 1 consists of arsenic vanadate ribbons coordinated by the [Cu(phen)]2+ complex, while compounds 2 to 4 possess a spherical [As8 IIIV14 IVO42]4? cage with H2O molecules encapsulated. The unexpected preparation 1 and the synthesis of compounds 2 to 4 on the basis of same polyoxoanion structures show that the pH value of the reaction plays a crucial role in controlling the basic architectures. 相似文献
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