کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1336990 | 1500287 | 2013 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Ring a bell: Disubstituted calix[4]arene as ligand for transition metal chlorides Ring a bell: Disubstituted calix[4]arene as ligand for transition metal chlorides](/preview/png/1336990.png)
Lower rim 1,3-disubstituted p-tert-butylcalix[4]arene is studied here in its deprotonated form as complexing ligand for iron and chromium chloride. Crystallization of the two complexes from dry THF gives two different stoichiometries and structures, a trinuclear iron compound and a second, mononuclear structure with chromium. In both cases, the ligand adopts an elliptical shape and the metal ions are bound to the lower rim of the calixarene molecule.
Two complexes of disubstituted calix[4]arene has been characterized by X-ray single crystal diffraction. These complexes have two different stoichiometries and structures, a trinuclear iron compound and a second, mononuclear structure with chromium. In both cases, the ligand adopts an elliptical shape and the metal ions are bound to the lower rim of the calixarene molecule.Figure optionsDownload as PowerPoint slide
Journal: Polyhedron - Volume 52, 22 March 2013, Pages 610–616