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The composition and stability of the Germanium phenylfluoronate complex

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Summary

Germanium phenylfluoronate is formed in solution as an orange coloured complex at pH 2.5–3.4. Its composition has been studied by continuous variation, slope ratio and mole ratio methods. The results indicate that the complex formed is of the 1∶2 type, and its stability constant is 6.80×102. The solid complex was prepared and examined by various methods including chemical analysis, infrared spectroscopy and differential thermal analysis. It conforms to the formula (C19H11O5)2Ge·4H2O and the bonding to the metal was found to be at the C=O and OH groups.

Zusammenfassung

Germaniumphenylfluoronat entsteht als orange gefärbter Komplex in Lösung bei pH 2,5–3,4. Seine Zusammensetzung wurde durch verschiedene Methoden untersucht, wobei sich ein Verhältnis von 1∶2 und eine Stabilitätskonstante von 6,80·102 ergaben. Der Komplex wurde in festem Zustand hergestellt und auf verschiedene Weise (chemisch-analytisch, IR-spektroskopisch, differential-thermoanalytisch) untersucht. Dabei ergab sich die Formel (C19H11O5)2Ge·4H2O. Das Metall ist an die C=O- und an die OH-Gruppe gebunden.

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Authors and Affiliations

  1. Chemistry Department, Faculty of Science, Ain Shams University, Abbasia, Cairo, Egypt

    S. K. Tobia,  M. F. El-Shahat & E. A. Saad

Authors
  1. S. K. Tobia
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  2. M. F. El-Shahat
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  3. E. A. Saad
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Tobia, S.K., El-Shahat, M.F. & Saad, E.A. The composition and stability of the Germanium phenylfluoronate complex. Mikrochim Acta 71, 175–182 (1979). https://doi.org/10.1007/BF01196403

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  • DOI: https://doi.org/10.1007/BF01196403

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