کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1337316 | 979626 | 2012 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Metal-ion-induced shape switching: Stereoselective formation of a dinuclear Hg(II) double helicate from a hydrazonobis(acylhydrazone) ligand
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی معدنی
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![عکس صفحه اول مقاله: Metal-ion-induced shape switching: Stereoselective formation of a dinuclear Hg(II) double helicate from a hydrazonobis(acylhydrazone) ligand Metal-ion-induced shape switching: Stereoselective formation of a dinuclear Hg(II) double helicate from a hydrazonobis(acylhydrazone) ligand](/preview/png/1337316.png)
چکیده انگلیسی
The unsymmetrical hydrazonobis(acylhydrazone) ligand L exists in solution as a mixture of isomers but complexes to Hg(II) with a major conformational change, affording a mixture of parallel and antiparallel binuclear double helicates. On crystallisation of the triflate salt, however, the antiparallel strand isomer is selected presumably due to the optimisation of several weak interactions.
In solution, the ligand L exists as a mixture of isomers but binds to Hg(II) to give a mixture of parallel- and antiparallel-strand double helicates which, when crystallised, provides a single isomer of the ligand bound in a single (antiparallel) form of the helicate.Figure optionsDownload as PowerPoint slide
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polyhedron - Volume 41, Issue 1, 28 June 2012, Pages 40–43
Journal: Polyhedron - Volume 41, Issue 1, 28 June 2012, Pages 40–43
نویسندگان
Gaël Schaeffer, Jack M. Harrowfield, Jean-Marie Lehn, Anna K.H. Hirsch,