Lacey_Che131_F2011_Lect-33p

Lacey_Che131_F2011_Lect-33p - Lec-33 Intermolecular forces...

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Lec-33: Intermolecular forces Roy A. Lacey, Stony Brook University; Che 131, Fall 2011 1 Ion-dipole Interactions An ion-dipole interaction occurs between an ion and the partial charge of a molecule with a permanent dipole. The cluster of water molecules that molecules that surrounds an ion in aqueous medium is a sphere of hydration. Roy A. Lacey, Stony Brook University; Che 131, Fall 2011 2
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dipole-dipole Interactions Dipole-dipole interaction Dipole-dipole interactions are attractive forces between polar between polar molecules Roy A. Lacey, Stony Brook University; Che 131, Fall 2011 3 Dipole-dipole Interactions ¾ The hydrogen bond is a special class of a special class of dipole-dipole interactions due to its strength strength. Polar molecules containing O-H, N-H and F-H bonds Have especially large Have especially large dipole-dipole interactions Hydrogen bonding serve to define the unique properties of H O Roy A. Lacey, Stony Brook University; Che 131, Fall 2011 4 Hydrogen bonding serve to define the unique properties of H 2 O
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This note was uploaded on 11/18/2011 for the course CHE 131 taught by Professor Kerber during the Spring '08 term at SUNY Stony Brook.

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Lacey_Che131_F2011_Lect-33p - Lec-33 Intermolecular forces...

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