Synthesis, Characterization, and Crystal Structures of Two Novel High-Nuclear Nickel-Substituted Dimeric Polyoxometalates
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https://figshare.com/articles/dataset/Synthesis_Characterization_and_Crystal_Structures_of_Two_Novel_High_Nuclear_Nickel_Substituted_Dimeric_Polyoxometalates/3220276
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资源简介：
Two novel high-nuclear Ni-substituted polyoxometalates Na9K[Ni7(OH)4(H2O)(CO3)2(HCO3)(A-α-SiW9O34)(β-SiW10O37)]·5H3O·18H2O (1) and K6Na4[{Ni6(H2O)4(μ2-H2O)4(μ3-OH)2}(x-SiW9O34)2]·17.5H2O (2) have been obtained by reaction of K8[γ-SiW10O36]
with NiCl2·2H2O in basic conditions. Compounds 1 and 2 all
represent the first polyoxometalates substituted by seven and six
Ni centers, respectively. Also, compound 1 exhibits a novel
asymmetric dimeric structure, composed of [A-α-SiW9O34]10- and
[β-SiW10O37]10- units linked by a Ni7 cluster and three carbonates,
which exhibit tri- and bidentate coordination modes in 1.
创建时间：
2006-05-29
