کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1325302 977377 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, spectral and structural characterisation of ditelluroxanes: μ-oxo-bis[nitrato-; 2,4,6-trinitrophenolato-dialkyl tellurium (IV)]
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Synthesis, spectral and structural characterisation of ditelluroxanes: μ-oxo-bis[nitrato-; 2,4,6-trinitrophenolato-dialkyl tellurium (IV)]
چکیده انگلیسی

The synthesis of ditelluroxanes: μ-oxo-bis[nitrato dimethyl tellurium (IV)] [(CH3)2TeNO3]2O (1), μ-oxo-bis[(2,4,6-trinitro)phenolato dimethyl tellurium (IV)] [(CH3)2TeOC6H2(NO2)3]2O (2) and μ-oxo-bis[1-(2,4,6-trinitro)phenolato-1,1,2,3,4,5-hexahydrotellurophene] [C4H8TeOC6H2(NO2)3]2O (3) was achieved. 1 was synthesised by the reaction of (CH3)2TeI2 with fuming HNO3 while 2 and 3 were synthesised by the reactions of R2Te(OH)2 [R2 = (CH3)2, (C4H8)] (in situ) with 2,4,6-trinitrophenol [ 2,4,6-(NO2)3C6H2OH] (picric acid). 1–3 have been investigated through UV/Vis; FT-IR, (1H, 13C) NMR spectroscopy and single crystal X-ray diffraction studies. In 1–3 the immediate coordination geometry about the central tellurium atom can be described as pseudo trigonal bipyramidal and the stereochemically active electron lone pair occupying equatorial position. The supramolecular self-organisations of these tetraorgano ditelluroxanes (1–3) are explained through cooperative participation of Te⋯O secondary bonds, C–H⋯O hydrogen bonds and π-stacking of the organic substituents.

The synthesis of ditelluroxanes has been achieved by convenient routes. Their X-ray structures show that they possess ΨTBP geometry with stereochemically active electron lone pair. Their supramolecular associations are organised through cooperative participation of Te⋯O secondary bonds, C–H⋯O hydrogen bonds and π-stacking of the organic substituents.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Organometallic Chemistry - Volume 692, Issue 12, 15 May 2007, Pages 2482–2490
نویسندگان
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