CHEM 105aLg Lecture Notes - Lecture 1: Heptane, Hydrogen Bond, Intermolecular Force
Document Summary
10. 8 molecular orbital (mo) model electrons are delocalized throughout the entire molecule atomic orbitals from mos spanning the entire molecule (not just between nuclei) x atomic orbitals produce x mos: unlike hybrid orbitals. Mos filled in order of increasing energy (aufbau) Mos have max capacity of 2 e (exclusion principle) Mos of equal energy are half-filled with parallel spins before any is filled completely (hund"s rule) 10. 8 p orbital overlap p orbitals can bond head-to-head or side-to-side antibonding or bonding in 4 different ways: *2p, 2p, *2p, 2p. 10. 8 hybridization vs. molecular orbitals atomic orbitals mix forming hybrid orbitals of the same energy atomic orbitals mix forming molecular orbitals of different energies. 11. 3 intermolecular forces (imfs: intermolecular forces occur between 2+ molecules, intramolecular forces occur within a molecule, 1. dipole-dipole forces (include hydrogen bonds) Force ionic bond covalent bond hydrogen bond dipole-dipole london force.
