Chemiluminescent reaction of sulphite auto‐oxidation in the presence of Ni(II)/tetraglycine and ruthenium(II)/bipy complexes: mechanistic considerations | Zendy

Bonifácio Rodrigo Leandro | Zendy; Coichev Nina | Zendy

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Chemiluminescent reaction of sulphite auto‐oxidation in the presence of Ni(II)/tetraglycine and ruthenium(II)/bipy complexes: mechanistic considerations

Author(s) -

Bonifácio Rodrigo Leandro,

Coichev Nina

Publication year - 2005

Publication title -

luminescence

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.428

H-Index - 45

eISSN - 1522-7243

pISSN - 1522-7235

DOI - 10.1002/bio.868

Subject(s) - chemistry , chemiluminescence , ruthenium , redox , oxygen , inorganic chemistry , photochemistry , reaction mechanism , catalysis , organic chemistry

The present work is a mechanistic study of the possible analytical chemiluminescent reaction of sulphite oxidation in the presence of dissolved oxygen, Ni(II)/tetraglycine and [Ru II (bipy) 3 ] 2+ ions. The Ni(III) complex oxidizes SO 3 2− to SO 3 •− , reacts with oxygen to produce SO 5 •− , initiating a radical chain reaction. The strong oxidants generated oxidize Ni(II) and Ru(II) complexes in one redox cycle, which is related to the balance of SO 3 2− and oxygen concentrations. The emission intensity depends on the concentrations of SO 3 2− , Ni(II) and Ru(II) complexes. Copyright © 2005 John Wiley & Sons, Ltd.

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