کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1316631 976471 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dioxygen affinities and catalytic oxidation activities of cobalt complexes with Schiff bases containing crown ether
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Dioxygen affinities and catalytic oxidation activities of cobalt complexes with Schiff bases containing crown ether
چکیده انگلیسی

The stoichiometry of dioxygen uptake of Co complexes with 4′,5′-bis-(5-chloro-2-hydroxyphenylmethylideneimino)benzo-12-crown-4 (1a), 4′,5′-bis(2-hydroxyphenylmethylideneimino)benzo-12-crown-4 (1b), 4′,5′-bis-(5-methoxy-2-hydroxyphenylmethylideneimino)benzo-12-crown-4 (1c), 4′,5′-bis-(5-chloro-2-hydroxyphenylmethylideneimino)benzo-15-crown-5 (2a), 4′,5′-bis(2-hydroxyphenylmethylideneimino)benzo-15-crown-5 (2b), 4′,5′-bis(5-methoxy-2-hydroxyphenylmethylideneimino)benzo-15-crown-5 (2c) were measured in pyridine solution. The equilibrium constants and thermodynamic parameters (ΔH0, ΔS0) of these complexes were calculated. At the same time, their catalytic activities in cyclohexene oxidation to 2-cyclohexen-1-one were examined. The influence of the crown ether ring on the dioxygen affinity of Co complexes at different temperature and the catalytic activities were discussed in comparison with uncrowned analogous complexes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Inorganic Biochemistry - Volume 100, Issue 8, August 2006, Pages 1308–1313
نویسندگان
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