《Table 1.Crystal Data and Structure Refinement for Compounds 1~3》

《Table 1.Crystal Data and Structure Refinement for Compounds 1~3》   提示:宽带有限、当前游客访问压缩模式
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《A Series of Lanthanide-organic Frameworks Constructed by Ln_4(OH)_4 Clusters and Mixed Ligands》


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aR=Σ|Fo|–|Fc|/Σ|Fo|,bwR={Σ[w(Fo2–Fc2)2]/Σ[w(Fo2)2]}1/2

The intensity data were collected on a Bruker APEX II(1~3)with graphite-monochromated Mo-Kαradiation(λ=0.71073?)at room temperature.All absorption corrections were performed using the multi-scan program.The structures were solved by direct methods and refined by full-matrix least-squares on F2 with the SHELXS-97 and SHELXL-97 programs[20].The hydrogen atoms of ligands were calculated with the riding model,while the hydrogen atoms of OH groups were located from Fourier difference maps.All atoms except H atoms were refined anisotropically.Further details for structural analyses of 1~3 are summarized in Table 1,and selected bond lengths of them are listed in Table 2.