BBMB 221: Exam 2 Structures and Conformations

Alcohol group structure

Thiol group structure

Tioether group structure

Amine group structure

Aldehyde group structure

Ketones group structure

Carboxylic acid group structure

Ester group structure

Amide group structure

Anhydride group structure

Methane structure

Ethane structure

Propane structure

Butane structure

Pentane structure

Hexane structure

Heptane structure

Octane structure

Nonane structure

Decane structure

-ane structures...

have no double bonds present

-ene structures...

have a double bond present

iso- structures:

branched versions of the same compound

Isomers:

same molecular formula

Structural isomers:

different bonding arrangements of the same compound

cyclo- structures:

ringed versions of the functional groups

Trans- structures:

alkyl groups are on opposite sides of the double bond

Cis- structures:

alkyl groups are on the same sides of the double bond

Conjugation meaning:

Double bonds are alternating on the structure

Conformations:

-eclipsed

-staggered

Eclipsed conformation:

-high energy

-not optimal

Staggered conformation:

-lower energy

-optimal

Resonance structure:

one of the two or more equally valid structures of a molecule or polyatomic ion