Tetrahedral Geometry and the Dipole Moment of Molecules

• Sara N. Mendiara ^[1] ; L. J. Perissinotti ^[1]
  1. [1] Universidad Nacional de Mar del Plata

     Universidad Nacional de Mar del Plata

     Argentina

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 79, Nº 1, 2002, pág. 64
• Idioma: inglés
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• Resumen

  • We have made a short and simple derivation of the bond angle in tetrahedral compounds. It is based on the knowledge of the permanent dipole moment of molecules. We use geometry, projections, trigonometry, and the bond and dipole moments. We have developed a detailed classroom methodology. We calculate the bond angle of symmetric tetrahedral molecules, where the dipole moment is zero. Afterward, we calculate angles and bond moments in molecules like ammonia and chloromethane.