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Solvolyse des Tetrathiocyanato-dianilino-chromat(III)-ions in Aceton—Wasser-Mischungen

Solvolysis of the tetrathiocyanato-dianilino-chromate(III)-ion in acetone-water mixtures

  • Anorganische, Struktur- und Physikalische Chemie
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Abstract

The solvolysis of the [Cr(NCS)4(aniline)2]− complex ion has been studied in various acetone-water mixtures in the presence of perchloric acid (10−3–10−1 mole/l). In acid solutions the first two NCS− ions are exchanged, presumably, for water molecules and in parallel an aniline molecule for acetone, the latter in a second order reaction, accelerated by hydrogen ions. The exchange of the amine is followed by the substitution of the first two NCS− ions.

The third and fourth NCS− ions are substituted only in neutral or weakly acid solutions. Kinetic parameters have been derived for the reactions mentioned above. The influence of solvent composition and of acidity is discussed.

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Authors and Affiliations

  1. Laboratorien für Anorganische Chemie der. Universität Craiova, Calea Bucureşti 165, Craiova, Rumänien

    Ion Gănescu, Valeriu Voiculescu & Csaba Várhelyi

  2. Babeş-Bolyai-Universität, Cluj, Rumänien

    Ion Gănescu, Valeriu Voiculescu & Csaba Várhelyi

Authors
  1. Ion Gănescu
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  2. Valeriu Voiculescu
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  3. Csaba Várhelyi
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Gănescu, I., Voiculescu, V. & Várhelyi, C. Solvolyse des Tetrathiocyanato-dianilino-chromat(III)-ions in Aceton—Wasser-Mischungen. Monatshefte für Chemie 106, 801–811 (1975). https://doi.org/10.1007/BF00902185

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  • DOI: https://doi.org/10.1007/BF00902185

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