Lecture 1 - TheoriesofChemicalBonding Lecture1 DipoleMoment...

Info iconThis preview shows pages 1–16. Sign up to view the full content.

View Full Document Right Arrow Icon
Theories of Chemical Bonding -  Lecture 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Dipole Moment Molecular shape + ∆χ Polarity (measured as the dipole moment, μ )
Background image of page 2
Dipole Moment,  μ +q -q r μ = qr Units of Debye (1 Debye = 3.34 x 10 -30 C m)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
e.g. Cl 2 ∆χ = 0 Thus μ = 0
Background image of page 4
e.g. HCl ∆χ = 1.9 μ = 1.07 D
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
e.g. CO 2 μ = 0 ∆χ = 1.0 ∆χ = 1.0
Background image of page 6
Methane - no dipole δ+ δ+ δ+ δ+ 4 δ- C Η Η Η Η
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
e.g. H 2 O ∆χ = 1.4 ∆χ = 1.4 Net Dipole μ = 1.85 D
Background image of page 8
Where are we? general stuff atomic structure ionic bonds covalent bonds molecular shape hybrid orbital theory molecular orbital theory
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Atomic theory Shapes of atomic orbitals VSEPR Shapes of molecules But how are atomic orbitals combined to make bonds and give these shapes? 1. Orbital overlap model 2. Hybrid orbital theory 3. Molecular orbital theory
Background image of page 10
Orbital Overlap Model e.g. Making HF H 1s 1 F [He]2s 2 2p 5 2p
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
e.g. making HF 1s 2p
Background image of page 12
e.g. making F 2 + F 2
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Orbital Overlap Model e.g. Making H 2 S S [Ne]3s 2 3p 4 3p The H-atom 1s electrons will overlap with these half-filled orbitals
Background image of page 14
e.g. making H 2 S +
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 16
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/08/2011 for the course CHEM 1001 taught by Professor Burk during the Fall '09 term at Carleton CA.

Page1 / 31

Lecture 1 - TheoriesofChemicalBonding Lecture1 DipoleMoment...

This preview shows document pages 1 - 16. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online