【摘 要】
:
[Zr(phen)4(H2O)4O2(V4O12)](phen)2 1 (phen = 1,10-phenanthroline) was synthesized under hydrothermal condition. The crystal of 1 belongs to triclinic, space grou
【机 构】
:
Chemistry College
论文部分内容阅读
[Zr(phen)4(H2O)4O2(V4O12)](phen)2 1 (phen = 1,10-phenanthroline) was synthesized under hydrothermal condition. The crystal of 1 belongs to triclinic, space group P(1) with a =10.6334(8), b = 11.9201(8), c = 14.6505(10) (A), α = 69.9980(10),β = 84.9240(10), γ = 84.1300(10)°,V = 1733.0(2) (A)3, Z = 1, Mr = 1672.27, Dc = 1.602 g/cm3, C72H56N12O18V4Zr, F(000) = 848,μ(MoKα) = 0.747 mm-1, S = 0.957, R = 0.0504 and wR = 0.1178 for 4011 observed reflections (I >2σ(I)). The crystal structure of 1 could be discussed in terms of {Zr(phen)2(H2O)2O2}, un-coordinated 1,10-phenanthroline molecules and { V4O12 } unit. In { Zr(phen)2(H2O)2O2 }, the coordination geometry of zirconium is a dodecahedron, but {V4O12} unit is constructed from four apex-sharing {VO4} tetrahedra. Furthermore, {V4O12} links with two {Zr(phen)2(H2O)2O2} units via two bridging oxygen atoms. Interestingly, the two {Zr(phen)2(H2O)2O2} units display D- and L-enantiomers, respectively, upon which the whole molecule represents a racemoid configuration.
其他文献
combined from diversified inbred lines.Transgenic Arabidopsis overexpressing ZmMYBEl implies that ZmMYBEl has an important role in developmental regulation in m
d.The modified scheme reduces the computational complexity at little expense of system performance.Numerical simulations show that the proposed algorithm and th
tress are of potential value for plant breeding,their exploitation presents great challenges.
rom this,the stationary solution and the firing rate of the stationary states are given.Last,by the Fourier transform,the time dependent solution is also obtain
for its further applications in communication systems.
en the initial data are in the bounded subset of the phase space Hm(Rn)(n≥3).The optimal decay rates are obtained in our results and are found to be the same a
AM and hAMCs,their immunological features,and the pluripotency of hAMCs.
sediments,Correlation analysis shows that heavy metal elements mainly exist in continental substances.
etical model for triggering the formation of coherent structures in the wall region of a turbulent boundary layer.
Novel amphiphilic triblock copolymer poly(p-dioxanone-co-5-benzyloxytrimethylene carbonate)-block-poly(ethylene glycol)-block-poly(p-dioxanone-co-5-benzyloxytri