Uranium complexes supported by an aryloxide functionalised triazacyclononane macrocycle: synthesis and characterisation of a six-coordinate U(III) species and insights into its reactivity.
نویسندگان
چکیده
A reactive low-valent uranium(III) complex supported by an aryloxide functionalised triazacyclononane has been synthesised and provides a platform for enhanced uranium reactivity.
منابع مشابه
Uranium tris-aryloxide derivatives supported by triazacyclononane: engendering a reactive uranium(III) center with a single pocket for reactivity.
The synthesis and spectroscopic characterization of the mononuclear uranium complex [((ArO)(3)tacn)U(III)(NCCH(3))] is reported. The uranium(III) complex reacts with organic azides to yield uranium(IV) azido as well as uranium(V) imido complexes, [((ArO)(3)tacn)U(IV)(N(3))] and [((ArO)(3)tacn)U(V)(NSi(CH(3))(3))]. Single-crystal X-ray diffraction, spectroscopic, and computational studies of thi...
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The highly reactive, six-coordinate tris-aryloxide U(III) species, [((t-BuArO)3tacn)U] (1) reacts with CO2 in a 2e- reduction to produce CO and a dinuclear U(IV/IV) mu-oxygen bridged complex [{((t-BuArO)3tacn)U}2(mu-O)] (2). This reaction proceeds via a dinuclear CO2-bridged intermediate 3. Also, mononuclear 1 was treated with 1 atm of CO to yield dinuclear [{((t-BuArO)3tacn)U}2(mu-CO)] (4) wit...
متن کاملReactivity of uranium(iii) with H2E (E = S, Se, Te): synthesis of a series of mononuclear and dinuclear uranium(iv) hydrochalcogenido complexes† †Electronic supplementary information (ESI) available: Full synthetic and experimental details, spectroscopic data for 1H NMR, SQUID and UV/vis and detailed X-ray crystallographic data in CIF format. CCDC 1020771–1020776. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4sc02602k Click here for additional data file. Click here for additional data file.
We report the syntheses, electronic properties, andmolecular structures of a series of monoand dinuclear uranium(IV) hydrochalcogenido complexes supported by the sterically demanding but very flexible, single N-anchored tris(aryloxide) ligand (ArO)3N) 3 . The mononuclear complexes [((ArO)3N)U(DME)(EH)] (E 1⁄4 S, Se, Te) can be obtained from the reaction of the uranium(III) starting material [((...
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عنوان ژورنال:
- Chemical communications
دوره 23 شماره
صفحات -
تاریخ انتشار 2002