| dc.contributor.author |
Das, N. |
|
| dc.date.accessioned |
2018-10-01T12:19:34Z |
|
| dc.date.available |
2018-10-01T12:19:34Z |
|
| dc.date.issued |
1993 |
|
| dc.identifier.citation |
Proceedings Of The Indian Academy Of Sciences-Chemical Sciences, 105(4-5), 1993: 245-252 |
|
| dc.identifier.issn |
0253-4134 |
|
| dc.identifier.uri |
http://ore.immt.res.in/handle/2018/408 |
|
| dc.description.abstract |
The kinetics of formation and dissociation of the binuclear complex of cobalt(II) with pyridine-2-carboxylato(pentaammine) cobalt(III) have been studied in the temperature range 10-25-degrees-C and at I = 0.3 mol dm-3 (ClO4-). The formation of (NH3)5CoO2CC5H4NCo4+ in the pH range 2.35-3.20 involves the reaction of Co(OH2)62+ with the protonated (pyridine-N) and the deprotonated forms of the complex. The rate and activation parameters for the formation reaction are consistent with an I(d) mechanism. The binuclear species undergoes dissociation to yield the parent cobalt(III) substrate and cobalt(II) via spontaneous and acid-catalysed paths. The rate data at 20-degrees-C for the spontaneous dissociation of the binuclear complex and of mono(pyridine-2-carboxylato) cobalt(II) are comparable indicating the chelating nature of the binuclear species. |
|
| dc.language |
en |
|
| dc.publisher |
Indian Academy Of Science |
|
| dc.relation.isreferencedby |
SCI |
|
| dc.rights |
Copyright [1993]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository. |
|
| dc.subject |
Chemical Sciences |
|
| dc.title |
KINETICS AND MECHANISM OF THE REVERSIBLE FORMATION OF THE BINUCLEAR SPECIES BETWEEN PYRIDINE-2-CARBOXYLATO(PENTAAMMINE)COBALT(III) AND COBALT(II) IN AQUEOUS-SOLUTION |
|
| dc.type |
Journal Article |
|
| dc.affiliation.author |
CSIR-IMMT, Bhubaneswar 751013, Odisha, India |
|