The interaction of phosphate with the mono- and binuclear cobalt(II) complexes of [30]aneN10 (1,4,7,10,13,16,19,22,25,28-decaazacyclotriacontane) was studied by potentiometry in 0.15 mol dm-3 NaClO4 soln. at 298.15 K under anaerobic conditions. The stable species [CoH2([30]aneN10)PO4]+, [CoH4([30]aneN10)PO4]3+, [Co2H([30]aneN10)PO4]2+, [Co2H2([30]aneN10)PO4]3+ and [Co2H3([30]aneN10)PO4]4+, where the phosphate anion is directly bound to the metal ions or acts as a 2nd sphere ligand, are formed and their stability const. were detd. The results obtained allowed for the selection of suitable conditions for the study of dioxygen uptake.
Cascade complex formation by phosphate in the cobalt(II)/[30]aneN10 anaerobic system
CABANI, SERGIO;CECCANTI, NORBERTO;TINE', MARIA ROSARIA;
1993-01-01
Abstract
The interaction of phosphate with the mono- and binuclear cobalt(II) complexes of [30]aneN10 (1,4,7,10,13,16,19,22,25,28-decaazacyclotriacontane) was studied by potentiometry in 0.15 mol dm-3 NaClO4 soln. at 298.15 K under anaerobic conditions. The stable species [CoH2([30]aneN10)PO4]+, [CoH4([30]aneN10)PO4]3+, [Co2H([30]aneN10)PO4]2+, [Co2H2([30]aneN10)PO4]3+ and [Co2H3([30]aneN10)PO4]4+, where the phosphate anion is directly bound to the metal ions or acts as a 2nd sphere ligand, are formed and their stability const. were detd. The results obtained allowed for the selection of suitable conditions for the study of dioxygen uptake.File in questo prodotto:
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