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首页> 外文期刊>Crystal growth & design >First Tungstoantimonate-Based Transition-Metal-Lanthanide Heterometallic Hybrids Functionalized by Amino Acid Ligands
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First Tungstoantimonate-Based Transition-Metal-Lanthanide Heterometallic Hybrids Functionalized by Amino Acid Ligands

机译:第一个基于钨钨酸锑酸盐的过渡金属-镧系元素杂化物被氨基酸配体官能化

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摘要

By the routine aqueous solution method, a series of transition-metallanthanide heterometallic tungstoantimonates [Ln(H2O)(8)](2)[Fe-4(H2O)(8)(thr)(2)][B-beta-SbW9O33](2)center dot 22H(2)O [L-n = Pr-III (1), Nd-III (2), Sm-III (3), Eu-III (4), Gd-III (5), Dy-III (6), Lu-III (7), thr = threonine] were prepared and structurally characterized by multiple testing techniques. The common structural characteristic of 17 is that they are isomorphous and all consist of a [Fe-4(H2O)(8)(thr)(2)(B-beta-SbW9O33)(2)](6-) subunit with two supporting [L-n(H2O)(8)](3+) cations on both sides. It should be pointed out that two thr ligands in the [Fe-4(H2O)(8)(thr)(2)(B-beta-SbW9O33)(2)](6-) subunit substitute for two water ligands in the classical [Fe-4(H2O)(10)(B-beta-SbW9O33)(2)](6-) polyoxoanion. As far as we know, 17 represents the first organicinorganic tungstoantimonate hybrids consisting of transition metal and lanthanide cations and amino acid components. The fluorescence behavior of 4 has been measured and manifests the remarkable fluorescence feature resulting from the emission signature of Eu-III cations. Furthermore, the solid-state electrochemistry and electrocatalytic performances of 1 have been measured in 0.5 mol L1 Na2SO4+H2SO4 aqueous solution, and the results show that 1 illustrates comparatively apparent catalytic activities toward the BrO3- and H2O2 reduction. The magnetic properties of 3 and 6 have been studied.
机译:通过常规水溶液法,一系列过渡金属镧系杂金属钨锑酸盐[Ln(H2O)(8)](2)[Fe-4(H2O)(8)(thr)(2)] [B-beta-SbW9O33 ](2)中心点22H(2)O [Ln = Pr-III(1),Nd-III(2),Sm-III(3),Eu-III(4),Gd-III(5),Dy -III(6),Lu-III(7),thr =苏氨酸]被制备并通过多种测试技术进行结构表征。 17的共同结构特征是它们是同构的,全部由[Fe-4(H2O)(8)(thr)(2)(B-beta-SbW9O33)(2)](6-)亚基组成,其中两个两侧均支持[Ln(H2O)(8)](3+)阳离子。应当指出,[Fe-4(H2O)(8)(thr)(2)(B-beta-SbW9O33)(2)](6-)亚基中的两个thr配体替代了经典的[Fe-4(H2O)(10)(B-beta-SbW9O33)(2)](6-)多氧阴离子。据我们所知,17代表第一个由过渡金属和镧系元素阳离子和氨基酸成分组成的有机无机钨锑酸杂化物。已测量了4的荧光行为,并显示了由Eu-III阳离子的发射特征引起的显着荧光特征。此外,在0.5 mol L1 Na2SO4 + H2SO4水溶液中测得的固态电化学和电催化性能为1,结果表明1显示出对BrO3-和H2O2还原的比较明显的催化活性。已经研究了3和6的磁性。

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