A new polyoxomolybdate complex HNaT[Mo36O112(H2O)16]·47H2O 1 has been prepared in the beaker solution and characterized by single-crystal X-ray diffraction and elemental analyses. Crystal data: H127Mo36Na7O175, Mr = 6542.79, monoclinic, C2/c, a = 40.891(6), b = 17.900(3), c = 25.580(4)A, β = 125.673(2)°, V = 15210(4)A3, Z = 4, Dc = 2.857 g/cm^3, F(000) = 12464,μ = 3.013 mm^-1, R = 0.0633 and wR = 0.1654 (I 〉 20(I)). With the bridging sodium cations, the [Mo36Ou2(H2O)16]^8- units in compound 1 are linked to form a one-dimensional structure, on the basis of which a three-dimensional architecture is further constructed via other sodium cations and complicated hydrogen bonds.
LIU Ying DOU Jian-Min WANG Da-Qi ZHANG Xian-Xi LI Da-Cheng JIA Ying-Chun
One novel polyoxometalate compound connected via trivalent cerium cation as bridge H2{ [K(H2O)212[Ce(H2O)5]2(H2Mo1.16W10.84O42)}.8H2O 1 was designed and synthesized in aqueous solution. X-ray diffraction analysis reveals that the structure of 1 is a three-dimensional framework assembled from the arrangement of H2Mo1.16W10.84O42 (named paradodecmetalate-B) and Ce(H2O)5^3+ containing two planes, which are constructed through the unification of H2Mo1.16W10.84O42^10- and Ce(H2O)5^3+ along the [100] and [001] directions. Crystal data: H96Ce4KaMo2.32O128W21.68, Mr = 7074.89, monoclinic, P21/n, a = 12.5037(17), b = 17.002(2), c = 12.7473(17)A, β = 105.966(2)°, V = 2605.4(6)A^3, Z = 1, Dc = 4.509 g/cm^3, F(000) = 3132,μ = 26.098 mm^-1, R = 0.0377 and wR = 0.0789 (I 〉 2σ(I)).
A novel vanadium-phosphate compound [PV2.5O8.5]·3.83{H2O} (1) was obtained from the hydrothermal reaction and structurally characterized by elemental analysis and single-crystal X-ray diffraction, which exhibited that the title complex crystallized in cubic space group I-43m with crystal data: a= 1.6115(1) nm, V=4.1848(1) nm^3, Z=12, Dc=1.783 g/cm^3, F(000)=2278, R1=0.0528, and wR2=0.1329 [1〉2σ(I)] (all data). The basic unit of {PV2.5O8.5} symmetrically extended to closed sphere-like structure of {P4V10O34}, WhiCh was further linked to interleaving three-dimensional network via sharing four phosphate through μ3-oxygen atoms around the closed sphere-like structures.
One new polyoxometalate compound connected via nickel/potassium cations, H8K{[Ni(H2O)5]2(H2Mo1.80W10.20O42)}Cl3·16H2O 1, was prepared and characterized by elemental analysis and IR spectroscopy. Single-crystal X-ray diffraction analysis results reveal that clusters of [Ni(H2O)5]2(H2Mo1.80W10.20O42)}^6-in compound 1 are linked by potassium cations to form one- dimiensional chains, based on which a three-dimensional network is further constructed via the hydrogen bonds of O…O and O…Cl. Magnetic measurements show that compound 1 has paramagnetic properties. Crystal data: H62Cl3KMo1.80Ni2O68W10.20, Mr = 3461.33, monoclinic, space group C2/c, a = 18.9291(19), b = 16.6758(17), c = 19.1064(19)A, β = 106.6880(10)°, V = 5777.1(10)A^3, Z = 4, Dc = 3.980 g/cm^3, F(000) = 6250, μ = 21.574 mm^-1, R = 0.0579 and wR = 0.1623 (Ⅰ 〉 2σ(Ⅰ)).
LIU Ying DOU Jian-Min WANG Da-Qi ZHANG Xian-Xi LI Da-Cheng XU Feng ZHOU Lei
One new polyoxotungstate complex H6Na2K4(H2W12O42)Cl2·14H2O 1 has been prepared in the beaker solution and characterized by elemental analysis and IR spectroscopy. Crystal data: H36Cl2K4W12Na2O56, Mr = 3411.77, monoclinic, space group P21/c, a = 11.5734(16), b = 14.3136(19), c = 15.459(2)A, β = 105.601(2)°, V = 2466.5(6)A^3, Z = 2, Dc = 4.594 g/cm^3, F(000) = 3008, μ = 28.447 mm^-1, R = 0.0574 and wR = 0.1239 (Ⅰ〉 2σ(Ⅰ)). Single-crystal X-ray diffraction analysis results reveal that a three-dimensional architecture in the title compound is constructed from the H2W12O42^10- units linked by potassium.