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Aquation

About: Aquation is a research topic. Over the lifetime, 1443 publications have been published within this topic receiving 17507 citations.


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Journal ArticleDOI
TL;DR: In this article, a new monobasic complex acid has been obtained by oxydizing a mixture of 1,2-cyclohexane-dione-dioxime (nyoxime), cobalt(II)-acetate and KCNSe.
Abstract: Es wurde eine neue monobasische Komplexsaure, Wasserstoff-bis-nyoximato-diselenocyanato-kobaltiat, H[Co(NioxH)2(NCSe)2] durch Oxydation einer Mischung von 1,2-Cyclohexandion-dioxim (Nyoxim), Kobalt(II)-acetat und KCNSe erhalten. 34 neue Komplexe dieser Saure wurden in kristalliner Form isoliert. Zur Klarung einiger Strukturfragen erfolgten spektrophotometrische Untersuchungen im UV- und IR-Bereich. In wasserigen Losungen des Komplexions fand eine Aquotisierungsreaktion statt, die zum Austausch eines CNSe−-Ions durch Wasser fuhrte. Die Kinetik dieser Reaktion wurde bei verschiedenen Temperaturen untersucht (Aktivierungsenergie Ea = 32,5 ± 0,9 kcal/Mol, ARRHENIUSScher vorexponentieller Faktor lg Z = 15,5 ± 2,5). Die Ergebnisse wurden mit den kinetischen Parametern der Aquotisierung des analogen Bis-Dimethyl-glyoximato-diselenocyanato-kobaltiat(III)-Ions verglichen. A new monobasic complex acid has been obtained by oxydizing a mixture of 1,2-cyclohexane-dione-dioxime (nyoxime), cobalt(II)-acetate and KCNSe. It is the hydrogen-bis-nyoximato-diselenocyanato cobaltiat: H[Co(NioxH)2(NCSe)2]. A number of 34 new complex salts of this acid have been isolated in crystalline form. In order to clear up some structural problems, a spectrophotometric study has been made in UV, and IR region. In aqueous solutions of the complexion takes place an aquation reaction, which leads to the substitution of a selenocyanation by water. Kinetics of this reaction has been followed at different temperatures (Activation energy of the reaction Ea = 32.5 ± 0.9 kcal/mole, pre-exponential factor in ARRHENIUS' equation lg Z = 15.5 ± 2.5). Results are compared with the kinetic parameters of the aquation of the analogous bis-dimethyl-glyoximato-diselenocyanato-cobalt(III)-ion.

6 citations

Journal ArticleDOI
TL;DR: The kinetics of aquation and anation reaction have been studied with pentaamineruthenium(III) complexes containing halogenoacetates (fiuoro-, monochloro-, dichloro, trichloro*, bromo-, and iodoace).
Abstract: The kinetics of aquation and anation reaction have been studied with pentaamineruthenium(III) complexes containing halogenoacetates (fiuoro-, monochloro-, dichloro-, trichloro-, bromo-, and iodoace...

6 citations

Journal ArticleDOI
TL;DR: In this article, the acid and base hydrolysis of nitratopentaamminerhodium (III) and iridium(III) cations have been studied kinetically and the observed rate constants were found to follow the equation k obs = k aq + k OH [OH − ].

6 citations

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20232
20226
202111
202010
201914
20187