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Kinetics and Mechanism of Hg[II] Promoted, Acid Catalyzed and Ligand Induced Dissociation of Pentacy Ano P-Nitrosophenol and Pentacyano P-Nitroso-N,N'dimethylaniline Ferra Te[II].

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dc.contributor.advisor Raman, Saroja
dc.contributor.author Janka, Mesfin
dc.date.accessioned 2018-06-20T14:23:18Z
dc.date.available 2018-06-20T14:23:18Z
dc.date.issued 1994-06
dc.identifier.uri http://localhost:80/xmlui/handle/123456789/2391
dc.description.abstract The kinetics of dissociation of pentacyano paranitrosophenol and 4-nitroso N,N'-dimethyl aniline ferrate(II} complexes was studied under three different conditions: i) substitution of PNP and PNA with excess pyridine, ii} acid catalysed substitution of PNP and PNA and iii) Hg(II) promoted aquation of the nitroso complexes. The rates of dissociation of Fe [CN) 5PNA3- and Fe [CN) sPNp3- increased with the concentration of pyridine and reached limiting values at pyridine concentrations> 0.5 M. The pseudo first order rate constants varied as k=k1 k2 [PY] where k, is the dissociation rate constant of the complexes, and k_l and k2 are the association rate constants of Fe [eN) 53- with Land py, respectively. The enthalpy and entropy of activation are AH# = 95 ± 4 kJ mol-1 , AS# = 22 ± 7 J mol-1 K-1 for Fe[CN)sPNA3- and AH# = 92 ± 3 kJ mol-1 , AS# = 14 ± 4 J mol- ' K- 1 for Fe [CN)5PNp3-. The rate en_US
dc.language.iso en en_US
dc.publisher Addis Ababa Universty en_US
dc.subject Pentacyano P-Nitrosophenol and Pentacyano en_US
dc.title Kinetics and Mechanism of Hg[II] Promoted, Acid Catalyzed and Ligand Induced Dissociation of Pentacy Ano P-Nitrosophenol and Pentacyano P-Nitroso-N,N'dimethylaniline Ferra Te[II]. en_US
dc.type Thesis en_US


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