Activation of elemental S, Se and Te with uranium(III): bridging U–E–U (E = S, Se) and diamond-core complexes U–(E)2–U (E = O, S, Se, Te)
Activation of elemental S, Se and Te with uranium(III): bridging U–E–U (E = S, Se) and diamond-core complexes U–(E)2–U (E = O, S, Se, Te)
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用铀 (III) 激活元素 S、Se 和 Te：桥接 U–E–U (E = S, Se) 和金刚石核配合物 U–(E)2–U (E = O, S, Se, Te ）
DOI：
10.1039/c1sc00151e
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发表时间：
2011
期刊：
影响因子：
8.4
通讯作者：
K. Meyer
中科院分区：
文献类型：
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作者：
Oanh P. Lam;F. Heinemann;K. Meyer
三（芳基氧化物）螯合配体支持的三价铀配合物[(t-BuArO)3tacn)U]和[((AdArO)3N)U]经单质形式的硫和硒活化，生成中价U(IV)/(U（IV）配合物[{(t-BuArO)3tacn)U}2(μ-E)]和[{((AdArO)3N)U}2(μ-E)] （E = S, Se）。在还原条件下，[(AdArO)3N)U]与单质硫、硒和碲反应生成中价双μ-硫族化合物配合物[Na(DME)3]2[{(AdArO)3N)U}2(μ-E)2] (E = S, Se, Te)，配合物具有金刚石核结构基序和稀有无机硫族化合物桥接配体。为了比较，还合成了一种独特的高价U(V)/U(V)双核配合物[{(AdArO)3N)U}2(μ-O)2]。该配合物中铀铀距离较短，具有U(μ-O)2U金刚石核，这可能解释了不寻常的温度依赖性磁行为。
Trivalent uranium complexes supported by tris(aryloxide) chelating ligands, [((t-BuArO)3tacn)U] and [((AdArO)3N)U], undergo activation of sulfur and selenium in their elemental forms, generating the mid-valent U(IV)/(U(IV) complexes of the type [{((t-BuArO)3tacn)U}2(μ-E)] and [{((AdArO)3N)U}2(μ-E)] (E = S, Se). Under reducing conditions, [((AdArO)3N)U] reacts with elemental sulfur, selenium and tellurium to yield the mid-valent dinuclear bis-μ-chalcogenide complexes [Na(DME)3]2[{((AdArO)3N)U}2(μ-E)2] (E = S, Se, Te) with the diamond-core structural motif and rare inorganic chalcogenide bridging ligands. For comparison, a unique high-valent U(V)/U(V) dinuclear complex [{((AdArO)3N)U}2(μ-O)2] was also synthesized. A short uranium–uranium distance in this complex with a U(μ-O)2U diamond-core may account for the unusual temperature-dependent magnetic behavior.
影响因子：
4.9
作者：
Castro-Rodríguez, I;Meyer, K
通讯作者：
Meyer, K