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Mechanistic Studies on the Oxidation of Hydrazine by Tris(biguanide)manganese(IV) in Aqueous Acidic Media
Author(s) -
Dhar Basab Bijayi,
Mukherjee Ritam,
Mukhopadhyay Subrata,
Banerjee Rupendranath
Publication year - 2005
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200590164
Subject(s) - chemistry , hydrazine (antidepressant) , manganese , stoichiometry , tris , aqueous solution , biguanide , aqueous medium , inorganic chemistry , medicinal chemistry , organic chemistry , medicine , biochemistry , metformin , chromatography , diabetes mellitus , endocrinology
The title Mn IV complex, [Mn(LH 2 ) 3 ] 4+ (LH 2 = biguanide = H 2 NC(NH)NHC(NH)NH 2 ), an authentic two‐electron oxidant, quantitatively oxidizes hydrazine (H 2 NNH 2 ) to dinitrogen in the pH interval 2.00–3.50. The net four‐electron oxidation of hydrazine is provided by two Mn IV as established by stoichiometric studies. The overall reaction is composed of two parallel paths: