Orgchem Terms

Question 1

A 3D structure of molecules and examine the effect of rotation around single bonds

Answer 1

Stereochemistry

Question 2

Different arrangements of atoms that are interconverted by rotation about single bonds

Answer 2

Conformation

Question 3

The C-H bonds are directly align to another C-H bonds on adjacent carbon. Energy is maxima

Answer 3

Eclipsed Conformation

Question 4

The C-H bonds on one carbon bisect the H-C-H bond angle. Energy is minimum yet most stable.

Answer 4

Staggered Conformation

Question 5

Rotating an an atom by ____ degrees converts and Eclipsed Conformation into a Staggered Conformation or vice versa

Answer 5

60

Question 6

Increased in energy caused by Eclipsing Interactions

Answer 6

Torsional Strain

Question 7

Increased in energy caused when two atoms are too close from one another

Answer 7

Steric Strain

Question 8

Increased in energy when tetrahedral bond angles deviate from the optimum angle of 109.5 deg (Baeyer).

Answer 8

Angle Strain

Question 9

More stable than any conformation. Example is cyclohexane which has 6 axial H and 6 equatorial H

Answer 9

Chair Conformation

Question 10

Isomer that has 2 substituents on same side

Answer 10

cis

Question 11

Isomer that has 2 substituents on opposite side

Answer 11

trans