Preparation of cis-[Cr(N3)(bpy)2(H2O)]2(+) complex and studies on a composite mechanism of its aquation stimulated by Cr(2+)(aq)-ions

• Autorzy: Katafias A. , Kita P. , Madej E.
• Języki publikacji: EN

Abstrakty

EN

Anation of cis-[Cr(bpy)2(H2O)2](3+) ion (bpy=2,2'-bipyridine) in NH3/N3(-) media gives a novel very inert monoazidocomplex whose formula and structure can be proposed as cis-[Cr(N3)(bpy)2(H2O)](2+). This complex decomposes rapidly by addition of Cr(2+)(aq) into a dereated acidic solution. Analysis of the reaction products and the kinetics suggests an electron transfer Cr(II)-Cr(III) via competitive reaction pathways: inner-sphere through Cr(III)-N3-Cr(II) intermediate, outer-sphere and/or perhaps also via a more direct interaction of Cr(II) with pi-ring of the coordinated bipyridine.

Słowa kluczowe

EN

electron transfer; aquation of complexes; kinetics

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 1998
• Tom: Vol. 72, nr 3
• Strony: 595--606
• Opis fizyczny: Bibliog.16 poz., wykr.

Twórcy

autor

Katafias A.

autor

Kita P.

autor

Madej E.

• Faculty of Chemistry N. Copernicus University 87-100 Toruń Poland