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
Kinetics of Oxidation of Azide by [Ethylenebis(biguanide)]silver(III) in Aqueous Acidic Media
✍ Scribed by Prabir Bandyopadhyay; Basab Bijayi Dhar; Jhimli Bhattacharyya; Subrata Mukhopadhyay
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 120 KB
- Volume
- 2003
- Category
- Article
- ISSN
- 1434-1948
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## Abstract The kinetics of a net two‐electron transfer between an authentic Mn^IV^ complex, [Mn(bigH)~3~]^4+^ (__Fig. 1__; bigH = biguanide = C~2~N~5~H~7~), and nitrite in aqueous solution in the pH interval 2.00–3.60 is described. Stoichiometric data for the reaction clearly indicates Δ[Mn^IV^]/Δ
## Abstract The kinetics of oxidation of several substituted quinols by a series of Tris(1,10‐phenanthroline)iron(III) complexes has been investigated with a stopped‐flow technique at 6.0 and 20.0°C. The reactions were found to be first order on both reactants and independent of acidity. The second