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Is VSEPR valid?

VSEPR: ist es stichhaltig?

  • Anorganische Und Physikalische Chemie
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Monatshefte für Chemie / Chemical Monthly Aims and scope Submit manuscript

Summary

A chief tenet of VSEPR (valence shell electron pair repulsion theory) is that very electronegative atoms or groups attached to a central atom pull electrons toward themselves. These electron pairs, being farther apart, exert less repulsion, and consequently the bond angles involving them are decreased. A comparison of 37 pairs of common compounds shows that this rule holds only for hydrogen compounds. For other molecules, the size of the attached groups determines the bond angles.

Zusammenfassung

Ein Hauptgrundsatz der VSEPR (Valenzschalen-Elektronenpaar-Repulsion) Theorie heißt: hoch elektronegative, an einem Zentralatom angelagerte Atome oder Atomgruppen ziehen Elektronen an. Da sie weiter voneinander entfernt sind, üben diese Elektronenpaare weniger Repulsion aus. Daher werden die dazugehörigen Bindungswinkel vermindert. Ein Vergleich von 37 Paaren einfacher Verbindungen zeigt, daß diese Regel nur für Wasserstoffverbindungen gilt. In anderen Molekülen bestimmt die Größe der angelagerten Gruppen die Valenzwinkel.

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References

  1. Bartell L. (1968) J. Chem. Educ.45: 754

    Google Scholar 

  2. Gillespie R. (1970) J. Chem. Educ.47: 18

    Google Scholar 

  3. Gillespie R. (1972) Molecular Geometry. van Nostrand Reinhold, London

  4. Marsden C., Bartell L. (1976) Inorg. Chem.15: 3004

    Google Scholar 

  5. Bartell L., Clippard F., Jacob E. (1976) Inor. Chem.15: 3009

    Google Scholar 

  6. Mickey C. (1980) J. Chem. Educ.57: 211

    Google Scholar 

  7. McKenna A., McKenna J. (1984) J. Chem. Educ.61: 771

    Google Scholar 

  8. Desseyn H., Herman M., Mullens J. (1985) J. Chem. Educ.62: 220

    Google Scholar 

  9. Wells H. (1974) Structural Inorganic Chemistry, 5th edn. Clarendon Press, Oxford

    Google Scholar 

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Myers, R.T. Is VSEPR valid?. Monatsh Chem 123, 363–368 (1992). https://doi.org/10.1007/BF00817590

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  • DOI: https://doi.org/10.1007/BF00817590

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