Chemistry 2213A/B Chapter Notes - Chapter 3: Intermolecular Force, Eclipsed Conformation, Van Der Waals Strain

• School: Western University
• Department: Chemistry
• Course: Chemistry 2213A/B
• Professor: Mark Workentin

Document Summary

The iupac system of nomenclature: prefix and suffix. Common names: isobutane, isopentane for when there is branches methyls at the end. Classification of carbon and hydrogen atoms: primary carbon: attached to another carbon, secondary carbon: attached to 2 carbons, tertiary carbon: attached to 3 carbons, quaternary carbon: attached to 4 carbons. 3. 5 how is the iupac system of nomenclature applied to molecules that contain. In the eclipsed conformation, forced to be eclipsed. Prevents eclipsing: cyclohexane, chair conformation: where all bond angles are 109. 5 (minimize angle strain) and staggered (minimize torsional strain) 6 equatorial c-h bonds: 3 up, 3 down. 6 axial c-h bonds: 3 up, 3 down. Switch to other chair b: chair boat other chair. Steric strain: the strain that arises when atoms separated by 4 or more bonds are forced abnormally close to each other: closer than radii typically allows.