9_Ch9_3 - Covalent Bonding What is covalent bonding Covalent Bonds overlap of orbitals-bond-bond Molecular Orbitals Hybrid Orbital Formation Shapes

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Mary J. Bojan Chem 110 1 Covalent Bonding What is covalent bonding? Covalent Bonds: overlap of orbitals σ -bond π -bond Molecular Orbitals Hybrid Orbital Formation Shapes of Hybrid Orbitals Hybrid orbitals and Multiple Bonds resonance structures
Background image of page 1

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

View Full DocumentRight Arrow Icon
Mary J. Bojan Chem 110 2 Molecular Orbitals Lewis structures : accounting for bonding and lone-pair electrons (where are the electrons?) VSEPR: Electron-pair structure, spatial distribution of electrons (3D) How are bonds made? We know electron distribution in atoms: atomic orbitals: ( s , p , d …) What is the electron distribution in molecules? Two models: Valence Bond Theory Valence orbitals on one atom overlap with valence orbitals on another atom: this overlap of orbitals is a covalent bond . Molecular Orbital Theory Covered in Chem 112
Background image of page 2
Mary J. Bojan Chem 110 3 Covalent Bonding H + H H 2 H 2 molecule Covalent bonding : H (1s) H (1s)
Background image of page 3

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

View Full DocumentRight Arrow Icon
Mary J. Bojan Chem 110 4 H + H H 2 Two forces operating: balance of forces bond length (0.74 Å for H 2 )
Background image of page 4
Mary J. Bojan Chem 110 5 Bond Types σ -bond results from electron density is π -bond results from electron density is pp Two p-orbitals Examples: s-s s-p
Background image of page 5

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

View Full DocumentRight Arrow Icon
Chem 110 6 Bonding in CH 4 Using only unpaired subshell electrons: Expect: The molecule would not have an octet on carbon. Carbon ground-state: (1
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/16/2011 for the course CHEM 110 taught by Professor Hofmann,brucerob during the Spring '08 term at Pennsylvania State University, University Park.

Page1 / 20

9_Ch9_3 - Covalent Bonding What is covalent bonding Covalent Bonds overlap of orbitals-bond-bond Molecular Orbitals Hybrid Orbital Formation Shapes

This preview shows document pages 1 - 7. Sign up to view the full document.

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