کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1303474 974772 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Activation of dioxygen by an yttrium iodide adduct: First example of an yttrium superoxide displaying also a rare 1,1-bridging mode of the superoxide ligand
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Activation of dioxygen by an yttrium iodide adduct: First example of an yttrium superoxide displaying also a rare 1,1-bridging mode of the superoxide ligand
چکیده انگلیسی

YI3(PriOH)4 (1), obtained from the reaction between yttrium chips and iodine in isopropanol, reacts with dioxygen to give a superoxide bridged dinuclear ionic species [Y2I2(μ2,μ0:η1-O2)2(PriOH)8][I]2 (2). The ligand exchange reaction of 1 with N,N-dimethylaminoethanol (dmaeH) afforded YI3(dmaeH)4 (3). Complex 2 is the first structurally characterised yttrium superoxide derivative. In addition, it displays a rare μ2,μ0:η1 bonding mode of O2−, unknown in transition metal chemistry. 2 is also the first example of a superoxide derived from a metal iodide. The DFT calculations on a model compound, where the PriOH molecules of 2 are replaced by water molecules, i.e. for [Y2I2(μ2,μ0:η1-O2)2(H2O)8][I]2 (2a), show that this molecule is stable in its high spin triplet state with the SOMO–LUMO gap being 3.7 eV.

YI3(PriOH)4 (1), obtained from the reaction between yttrium chips and iodine in isopropanol, reacted with dioxygen to give a dinuclear ionic species [Y2I2(μ2,μ0:η1-O2)2(PriOH)8][I]2 (2). It is the first structurally characterized yttrium superoxide derivative as well as the first superoxide derived from an iodide. In addition, it displays a rare μ2,μ0:η1 bonding mode of O2−. DFT calculations indicate that this molecule is stable in its high spin triplet state.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganic Chemistry Communications - Volume 10, Issue 1, January 2007, Pages 15–19
نویسندگان
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