کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1306895 975109 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
C–P bond forming reactivity of N-heteropentacene: Isolation and characterization of a phospho-ylide complex of ruthenium(II)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
C–P bond forming reactivity of N-heteropentacene: Isolation and characterization of a phospho-ylide complex of ruthenium(II)
چکیده انگلیسی

In an unusual reaction of H2L2 (H2L2 = N-heteropentacene) with Ru(PPh3)3Cl2 a phospho-ylide ruthenium(II) complex (1) was obtained via unprecedented chemical transformations of the conjugate base [L2]2−. A bidentated phospho-ylide ligand is formed with concomitant aromatic ring hydroxylation and new C–P bond formation reactions. The new ligand, binds to RuII as a neutral N, O-donor. Crystal structure determination by single crystal X-ray diffraction has been used to characterize the compound. The phospho-ylide Ru(II) description of the complex was established based on 13C as well as 31P NMR studies. The complex shows rich spectral and redox properties. UV–Vis–NIR spectrum consisted of multiple low-energy transitions in the visible and near IR regions. Preliminary density functional theory calculations were employed to understand the electronic structure and to assign the spectral transitions. Cyclic voltammogram and EPR-spectrum of the electrogenerated oxidized compound are reported and used to characterize the redox properties.

A ruthenium(II) complex of a phospho-ylide ligand was isolated from the chemical reaction of a N-heteropentacene compound and Ru(PPh3)3Cl2. The reaction occurs via a series of unprecedented chemical transformations including hydroxylation as well as C–P bond formation at the heteropentacene ring.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganica Chimica Acta - Volume 363, Issue 12, 15 October 2010, Pages 2840–2847
نویسندگان
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