کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1407202 1501874 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, structure and physical characterization of the dimer {[(bpy)2Co]2(TPOA)}4+ (bpy = 2,2′-dipyridyl; H2TPOA = N,N′,N′′,N′′′-tetraphenyl oxalamidine)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Synthesis, structure and physical characterization of the dimer {[(bpy)2Co]2(TPOA)}4+ (bpy = 2,2′-dipyridyl; H2TPOA = N,N′,N′′,N′′′-tetraphenyl oxalamidine)
چکیده انگلیسی

The reaction between CoCl2, 2,2′-dipyridyl (bpy) and N,N′,N′′,N′′′-tetraphenyl oxalamidine (H2TPOA) in a water/ethanol mixture yields the {[(bpy)2Co]2(TPOA)}2+ dimer, that is immediately oxidized in aerobic conditions leading to the CoIII species {[(bpy)2Co]2(TPOA)}4+. This cation was isolated as the {[(bpy)2Co]2(TPOA)}(PF6)4 (1) salt, that was characterized by X-ray diffraction on single crystals. The dimer is formed by two CoIII ions in octahedral coordination bridged by a deprotonated μ2-TPOA ligand. The CoIII ions appear in its low spin configuration. Thus, the dimers are essentially diamagnetic, as shown by 1H NMR and magnetic measurements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 890, Issues 1–3, 12 November 2008, Pages 272–276
نویسندگان
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