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Structure and Reactivity of (PPh4)3[W(CN)5O] ⋅ 7H2O. Kinetics and Mechanism of the Reaction with Molecular Oxygen

Janusz Szklarzewicz ; Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, 30-060 Krakóv, Poland
Dariusz Matoga ; Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, 30-060 Krakóv, Poland
Alina Samotus ; Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, 30-060 Krakóv, Poland
John Burgess ; Department of Chemistry, University of Leicester, Leicester LE1 7RH, UK
John Fawcett ; Department of Chemistry, University of Leicester, Leicester LE1 7RH, UK
David R. Russell ; Department of Chemistry, University of Leicester, Leicester LE1 7RH, UK

Puni tekst: engleski, pdf (173 KB) str. 529-544 preuzimanja: 213* citiraj
APA 6th Edition
Szklarzewicz, J., Matoga, D., Samotus, A., Burgess, J., Fawcett, J. i Russell, D.R. (2001). Structure and Reactivity of (PPh4)3[W(CN)5O] ⋅ 7H2O. Kinetics and Mechanism of the Reaction with Molecular Oxygen. Croatica Chemica Acta, 74 (3), 529-544. Preuzeto s https://hrcak.srce.hr/131857
MLA 8th Edition
Szklarzewicz, Janusz, et al. "Structure and Reactivity of (PPh4)3[W(CN)5O] ⋅ 7H2O. Kinetics and Mechanism of the Reaction with Molecular Oxygen." Croatica Chemica Acta, vol. 74, br. 3, 2001, str. 529-544. https://hrcak.srce.hr/131857. Citirano 09.03.2021.
Chicago 17th Edition
Szklarzewicz, Janusz, Dariusz Matoga, Alina Samotus, John Burgess, John Fawcett i David R. Russell. "Structure and Reactivity of (PPh4)3[W(CN)5O] ⋅ 7H2O. Kinetics and Mechanism of the Reaction with Molecular Oxygen." Croatica Chemica Acta 74, br. 3 (2001): 529-544. https://hrcak.srce.hr/131857
Harvard
Szklarzewicz, J., et al. (2001). 'Structure and Reactivity of (PPh4)3[W(CN)5O] ⋅ 7H2O. Kinetics and Mechanism of the Reaction with Molecular Oxygen', Croatica Chemica Acta, 74(3), str. 529-544. Preuzeto s: https://hrcak.srce.hr/131857 (Datum pristupa: 09.03.2021.)
Vancouver
Szklarzewicz J, Matoga D, Samotus A, Burgess J, Fawcett J, Russell DR. Structure and Reactivity of (PPh4)3[W(CN)5O] ⋅ 7H2O. Kinetics and Mechanism of the Reaction with Molecular Oxygen. Croatica Chemica Acta [Internet]. 2001 [pristupljeno 09.03.2021.];74(3):529-544. Dostupno na: https://hrcak.srce.hr/131857
IEEE
J. Szklarzewicz, D. Matoga, A. Samotus, J. Burgess, J. Fawcett i D.R. Russell, "Structure and Reactivity of (PPh4)3[W(CN)5O] ⋅ 7H2O. Kinetics and Mechanism of the Reaction with Molecular Oxygen", Croatica Chemica Acta, vol.74, br. 3, str. 529-544, 2001. [Online]. Dostupno na: https://hrcak.srce.hr/131857. [Citirano: 09.03.2021.]

Sažetak
The (PPh4)3[W(CN)5O] ⋅ 7H2O has been synthesised and structurally characterised by X-ray diffraction. In the solid state and in ethanol-acetone mixture, the salt reacts with molecular oxygen giving (PPh4)2[W(CN)4O(O2)]. The progress of the solid state reaction was followed by measuring infrared spectra. The integrated intensities of the W=O, O−O and C≡N bands changed with time according to the pseudo first-order kinetics. In solution, the kinetic measurements indicate that the rate law is of the form -d[complex]/dt = k[complex][O2]. The k value is equal to 5.78 (±0.26) mol-1 dm3 s-1 at 298 K. The activation parameters, ΔH(k) and ΔS(k), are 55 (±3) kJ mol-1 and -46 (±8) J K-1 mol-1, respectively. A reaction mechanism is proposed.

Ključne riječi
Oxopentacyanotungstate(IV); oxoperoxotetracyanotung-state(VI); reaction with dioxygen; kinetics and mechanism

Hrčak ID: 131857

URI
https://hrcak.srce.hr/131857

Posjeta: 345 *