TITLE

Hydrolysis of dimethylphenyltin(IV) and triphenyltin(IV) chlorides in different aqueous ethanol solutions

AUTHOR(S)
Azadmehr, Amirreza; Jabbari, Morteza; Gharib, Farrokh; Amini, Mostafa Mohammadpour
PUB. DATE
August 2008
SOURCE
Canadian Journal of Chemistry;Aug2008, Vol. 86 Issue 8, p751
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The hydrolysis of [(Me)2(Ph)Sn(IV)]+ and [(Ph)3Sn(IV)]+ has been investigated at 25 °C and different aqueous solutions of ethanol, using a combination of spectrophotometric and potentiometric techniques. The species formed together with their formation constants have been determined using the computer program Squad over a wide pH range of 1 to 11. The hydrolysis constants in different media were analyzed in terms of Kamlet and Taft parameters. Single-parameter correlation of the formation constants, K11 and K12, versus α (hydrogen-bond donor acidity), β (hydrogen-bond acceptor basicity), and π* (dipolarity/polarizability) for both cases are relatively poor in all solutions, but multiparameter correlation represents significant improvement with regard to the single-parameter models. In this work, we have also used the normalized polarity parameter, ETN, alone and in combination with the Kamlet–Taft parameter to find a better correlation of the formation constants in different aqueous ethanol solutions.Key words: dimethylphenyltin(IV) chloride, triphenyltin(IV) chloride, hydrolysis constant, aqueous ethanol solutions, solvent effect. On a étudié l’hydrolyse des cations [(Me)2(Ph)Sn(IV)]+ et [(Ph3)Sh(IV)]+ en faisant appel à une combinaison de techniques spectro photométriques et potentiométriques et en opérant à 25 °C, dans diverses solutions aqueuses d’éthanol. Faisant appel au programme informatique Squad, on a déterminé la nature des espèces qui se forment ainsi que leurs constantes de formation pour une plage de pH allant de 1 à 11. Les constantes d’hydrolyse dans les divers milieux ont été analysées en fonction de paramètres de Kamlet et de Taft. Dans les deux cas, les corrélations de paramètres uniques des constantes de formation, K11 et K12 en fonction d’α (acidité d’une liaison hydrogène donneur), de β (basicité d’une liaison hydrogène accepteur) et de π* (caractère dipolaire/polarisabilité) sont relativement mauvaises pour toutes les solutions; toutefois, les corrélations à plusieurs paramètres présentent des améliorations sensibles par rapport aux modèles à un seul paramètre. Dans ce travail, on a aussi utilisé le paramètre de polarité normalisée, ETN, seul ou en combinaison avec le paramètre de Kamlet–Taft, pour déterminer une meilleure corrélation des constantes de formations dans les diverses solutions aqueuses d’éthanol.Mots-clés : chlorure de diméthylphénylétain(IV), chlorure de triphénylétain(IV), constante d’hydrolyse, solutions aqueuses d’éthanol, effet de solvant.[Traduit par la Rédaction]
ACCESSION #
33300134

 

Related Articles

  • Kinetics of Base Hydrolysis of Methyl Iodide in Binary Solvents Water-Isopropyl Alcohol. Panov, M. Yu.; Sokolova, O. B. // Russian Journal of General Chemistry;Jan2003, Vol. 73 Issue 1, p93 

    The rate constants of the reaction of MeI with hydroxide ion at 298-323 K in aqueous isopropanol (isopropanol content 0-30 mol %) were measured. The effects of solvation of the reactants and activated complex were separated. The contributions of particular types of interactions to the solvation...

  • Aspects of the hydrolysis of formamide: revisitation of the water reaction and determination of the solvent deuterium kinetic isotope effect in base. Slebocka-Tilk, H; Sauriol, F; Monette, Martine; Brown, R S // Canadian Journal of Chemistry;Oct2002, Vol. 80 Issue 10, p1343 

    A study of the hydrolysis of formamide is reported with the aims of isolating the water reaction for hydrolysis from the acid and base hydrolysis terms and determining the solvent deuterium kinetic isotope effect (dkie) on base-catalyzed hydrolysis. Respective activation parameters (?H[sup...

  • Pre-Steady State Kinetic Studies on H+-ATPase from Candida albicans1. Manzoor, Nikhat; Amin, Mohd.; Khan, Luqman Ahmad // Journal of Biochemistry;1999, Vol. 126 Issue 4, p776 

    The mechanism of ATP hydrolysis by plasma membrane H+-ATPase from Candida albicans has been investigated by following the kinetics of H+ liberation/absorption and the UV difference spectrum in a stopped flow spectrophotometer. A distinct pre-steady state phase of ATP hydrolysis could be defined....

  • ESTUDIO TEÓRICO DE LA INCIDENCIA DEL EFECTO DEL SOLVENTE ANALIZADO EN TÉRMINOS DE LAS INTERACCIONES PAR TIPO LENNARD-JONES, PARA LOS SISTEMAS MeOH, EtOH Y 1-ProOH EN FASE ACUOSA. Nisperuza, D.; Figueredo, F. // Revista Colombiana de Física;2007, Vol. 39 Issue 2, p511 

    We consider some effects of the change in the molecular properties of the MeOH, EtOH and 1-ProOH due to the presence of a polar solvent, through analysis of the potential of Lennard-Jones between two molecules of these alcohol, in in the middle solvent and emptiness. The comparison of the graphs...

  • InVitro Antioxidant Activities of New 4,5-Dihydro-1H-1,2,4-triazol-5-ones having Thiophene Ring with their Acidic Properties. Yuksek, H.; Islamoglu, F.; Kol, O. Gursoy; Bahceci, S.; Bekar, M.; Aksoy, M. // E-Journal of Chemistry;2011, Vol. 8 Issue 4, p1734 

    Seven new 3-alkyl(aryl)-4-(2-thienymethylenamino)-4,5-dihydro- 1H-1,2,4-triazol-5-ones (2) were synthesized by the reactions of 3-alkyl(aryl)- 4-amino-4,5-dihydro-1H-1,2,4-triazol-5-ones (1) with thiophene-2-carbaldehyde. In addition, N-acetyl derivatives of compounds 2d-2g were also prepared....

  • Facile Preparation of Co3O4 Nanoflower through Forced Hydrolysis. Irwin, Basir Nor; Sharif Hussein, Sharif Zein; Latif, Ahmad Abdul; Azman, Miskam Muhamad // Applied Mechanics & Materials;2014, Vol. 699, p181 

    One of the interesting structures in nano Co3O4S preparation that have been reported fairly recent is the flower-like structure often referred as nanoflower. Several interesting applications involving Co3O4 nanoflower have also been reported. This paper present a facile approach to prepare Co3O4...

  • Electrokinetic properties of aluminum oxide nanodispersions in NaCl solutions. Volkova, A.; Ermakova, L.; Golikova, E.; Bogdanova, N. // Colloid Journal;Jan2013, Vol. 75 Issue 1, p49 

    Using a Zetasizer Nano analyzer, electrophoretic mobility and particle sizes are studied as depending on the pH (3-11) and concentration (10-10 M) of NaCl background solutions for two samples of aluminum oxide, namely, γ-oxide of the Degussa brand and a sample synthesized by aluminum chloride...

  • Electrochemical behavior of graphite in nonaqueous FeCl3 solutions. Dunaev, A.V.; Sorokina, N.E.; Maksimova, N.V.; Avdeev, V.V. // Inorganic Materials;Feb2005, Vol. 41 Issue 2, p127 

    The electrochemical synthesis of ternary graphite intercalation compounds (GICs) with ferric chloride and an organic solvent is described. Stage IV and V ternary GICs with identity periodsIc = 19.19 � (di = 9.14 �) and 22.70 � (di = 9.30 �), respectively, are obtained in...

  • Synthesis of 3,3-Dialkoxy-2-trialkylsiloxypropenes. Keiko, N. A.; Kuznetsova, T. A.; Chuvashev, Yu. A.; Sherstyannikova, L. V.; Larina, L. I.; Voronkov, M. G. // Russian Journal of Organic Chemistry;Oct2003, Vol. 39 Issue 10, p1393 

    Silylation of 1,1-dialkoxy-2-propanones with trimethyl- and tert-butyldimethylsilyl chlorides and trifluoromethanesulfonates in the presence of triethylamine and/or 1,8-diazabicyclo[5.4.0]undec-7-ene in various solvents leads to 2-trialkylsiloxypropenal acetals in up to 60% yield.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics