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http://nopr.niscpr.res.in/handle/123456789/46748| Title: | Kinetics and mechanism of Ag(I) - promoted substitution of cyanide ion from hexacyanoferrate(II) by-nitrosobenzene |
| Authors: | Reddy, B Rajeswara Raman, Saroja |
| Issue Date: | Jun-1989 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The Ag(I)-promoted abstraction of CN- from Fe(CN) - by nitrosobenzene leads to the formation of the violet complex, Fe(CN)5C6H5NO3-. The pseudo-first order rate constants of Fe(CN)5C6H5NO3- formation increase with increase in [Fe(CN) ] and reach limiting value for [Fe(CN)]/[AgNO3] ≥ 30. This indicates the formation of a strong adduct between Fe(CN) and AgN03 prior to the abstraction of CN-. Activation parameters for the reaction are:  H ≠ = 139 ± 14 kJ mol-1; and S ≠ = 145 ±21 J K-1 mol-1. Positive entropy of activation suggests on SN1 type of dissociation of the intermediate. |
| Page(s): | 599-601 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.28A(07) [July 1989] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 28A(7) 599-601.pdf | 1.72 MB | Adobe PDF | View/Open |
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