Franke Sebastian M, Rosenzweig Michael W, Heinemann Frank W, Meyer Karsten
Department of Chemistry and Pharmacy , Inorganic Chemistry , Friedrich-Alexander University of Erlangen-Nürnberg (FAU) , Egerlandstraße 1 , D-91058 Erlangen , Germany . Email:
Chem Sci. 2015 Jan 1;6(1):275-282. doi: 10.1039/c4sc02602k. Epub 2014 Sep 29.
We report the syntheses, electronic properties, and molecular structures of a series of mono- and dinuclear uranium(iv) hydrochalcogenido complexes supported by the sterically demanding but very flexible, single N-anchored tris(aryloxide) ligand (ArO)N). The mononuclear complexes [((ArO)N)U(DME)(EH)] (E = S, Se, Te) can be obtained from the reaction of the uranium(iii) starting material [((ArO)N)U(DME)] in DME reduction of HE and the elimination of 0.5 equivalents of H. The dinuclear complexes [{((ArO)N)U}(μ-EH)] can be obtained by dissolving their mononuclear counterparts in non-coordinating solvents such as benzene. In order to facilitate the work with the highly toxic gases, we created concentrated THF solutions that can be handled using simple glovebox techniques and can be stored at -35 °C for several weeks.
我们报道了一系列由空间位阻大但非常灵活的单N-锚定三（芳氧基）配体（ArO）N支撑的单核和双核铀（IV）氢硫属化物配合物的合成、电子性质和分子结构。单核配合物[((ArO)N)U(DME)(EH)]（E = S、Se、Te）可通过铀（III）起始原料[((ArO)N)U(DME)]在DME中与HE反应并还原，同时消除0.5当量的H得到。双核配合物[{((ArO)N)U}(μ-EH)]可通过将其单核对应物溶解在非配位溶剂（如苯）中获得。为便于处理剧毒气体，我们制备了浓缩的四氢呋喃溶液，该溶液可使用简单的手套箱技术进行操作，并可在-35°C下储存数周。
