کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
193433 459769 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical behaviour of tetraazamacrocyclic nickel(II) complexes functionalized with crown ethers
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Electrochemical behaviour of tetraazamacrocyclic nickel(II) complexes functionalized with crown ethers
چکیده انگلیسی

Tetraazamacrocyclic nickel(II) complexes linked by the system of conjugated double bonds with one or two benzo-15-crown-5 moieties (2Ni and 3Ni) were synthesized and characterized. The CV of these complexes in acetonitrile (ACN) solution exhibited reversible NiII/III redox process. At more positive potentials oxidation of the bezno-15-crown-5 ether (B15C5) moiety was found. In complexes 2Ni and 3Ni redox potential of NiII/III did not change after the interactions of alkali and alkaline earth metal cations with B15C5 unit. However, the presence of guest cations caused a significant change of B15C5 oxidation potential. Complexation of two Cl− anions to the coordinated NiII in 2Ni and 3Ni resulted in an appreciable shift of both NiII/III and B15C5 redox processes after addition of metal cations. Behaviour of complexes 2Ni and 3Ni was compared with behaviour of similar CuII complexes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 53, Issue 9, 20 March 2008, Pages 3531–3538
نویسندگان
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