6533b85afe1ef96bd12ba085
RESEARCH PRODUCT
Cascade complex formation by phosphate in the cobalt(II)/[30]aneN10 anaerobic system
Antonio BianchiEnrique García-españaAndrea BenciniNorberto CeccantiPiero PaolettiMaria Rosaria TineSergio Cabanisubject
DIOXYGEN CARRIERS; DIOXYGEN BINDING; Co(II) COMPLEXES; POLYAMINE LIGANDS; DITOPIC POLYAMINES; OPEN-CHAIN POLYAZAALKANES; THERMODYNAMICS; ANION COORDINATION CHEMISTRY; INCLUSION COMPLEXESINCLUSION COMPLEXESMetal ions in aqueous solutionComplex formationInorganic chemistryDIOXYGEN BINDINGchemistry.chemical_elementMedicinal chemistryCo(II) COMPLEXESInorganic Chemistrychemistry.chemical_compoundOPEN-CHAIN POLYAZAALKANESANION COORDINATION CHEMISTRYTHERMODYNAMICSMaterials ChemistryDIOXYGEN CARRIERSPhysical and Theoretical ChemistryLigandPhosphatePhosphate anionchemistryDITOPIC POLYAMINESChemical equilibriumAnaerobic exerciseCobaltPOLYAMINE LIGANDSdescription
Abstract The interaction of phosphate with the mono- and binuclear cobalt(II) complexes of [30]aneN 10 (1,4,7,10,13,16,19,22,25,28-decaazacyclotriacontane) has been studied by potentiometry in 0.15 mol dm −3 NaClO 4 solution at 298.15 K under anaerobic conditions. The stable species [CoH 2 ([30]aneN 10 )PO 4 ] + , [CoH 4 ([30]aneN 10 )PO 4 ] 3+ , [Co 2 H([30]aneN 10 )PO 4 ] 2+ , [Co 2 H 2 ([30]aneN 10 )PO 4 ] 3+ and [Co 2 H 3 ([30]aneN 10 )PO 4 ] 4+ , where the phosphate anion is directly bound to the metal ions or acts as a second sphere ligand, are formed and their stability constants have been determined. The results obtained allowed for the selection of suitable conditions for the study of dioxygen uptake.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1993-02-01 |