کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1337270 979623 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Imine coordinated 2-aminoazole complexes of (CO)5Cr(0) and (CO)5W(0), verification by structural characterisation
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Imine coordinated 2-aminoazole complexes of (CO)5Cr(0) and (CO)5W(0), verification by structural characterisation
چکیده انگلیسی

The synthesis and structural characterisation (IR, MS, 1H, 13C and 15N NMR and single crystal X-ray diffraction analysis) of 2-aminoazole complexes of pentacarbonyl Cr(0) and W(0) are described. When provided with endocyclic soft thioether or endocyclic hard amine, endocyclic borderline imine and exocyclic hard amine coordination sites, the softer endocyclic imine coordination site is favoured.

The structural characterisation of (CO)5M(2-aminoazole), where M = Cr or W, showed preferred endocyclic imine coordination when provided with endocyclic soft thioether or endocyclic hard amine, endocyclic borderline imine and exocyclic hard amine coordination sites. An upfield shift of 70–76 ppm is observed for the 15N NMR signal of the imine nitrogen upon coordination.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polyhedron - Volume 28, Issue 16, 3 November 2009, Pages 3635–3641
نویسندگان
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