CH-1010 Chapter Notes - Chapter 5: Phosphorus Pentafluoride, Homonuclear Molecule, Dna Replication
14 Oct 2016
School
Department
Course
Professor
Document Summary
Molecular recognition enables biomolecular structures to recognize and react when a particular molecule with a specific shape fits into a part of the structure known as an active site. The shape of a molecule can affect many properties of the substance. Lewis structures show how atoms are connected in molecules, but they don"t show how the atoms are oriented in three dimensions, nor do they necessarily show the overall shape of the molecule. Electrons have negative charges and repel each other. Valence-shell electron-pair repulsion theory (vsepr) applies this principle by assuming that pairs of valence electrons are arranged about central atoms in ways that minimize repulsions between the pairs. To accurately predict molecular geometry we first need to know electron-group geometry. If there are no lone pairs of electrons, then the process is simplified because the electron-group geometry is the molecular geometry.
