Packet #8 Flashcards
superimposableructures
put 2 objects right on top of each other and see if identical. If so, they are superimposable.
isomers
different compounds with the same formulas but different structures
connectivity
which atoms are bonded to which other atoms in the molecule (That’s what Lewis structures show us)
geometric isomers
different compounds that have the SAME formula AND also the SAME connectivity BUT _different orientations _
In geometric isomers, each atom is connected to all the same other atoms, but the arrangement of those atoms is different
constitutional isomers
different compounds with the same formulas BUT different connectivities
wedge
coming out of the screen at you
dashes
lines meaning the atom is going back into the screen
cis and trans
chiral
Existing in right and left handed forms
enantiomer
the right and left handed geometric isomers
Way to know chirality
You must have 4 different groups attached to a substance. To be chiral a molecule must contain at least 1 carbon atom with 4 different groups attached.
*C
Chiral center - a carbon atom with 4 different groups attached to it
How to know ‘cis’
In ‘cis’, the two “ends” are coming out in the same direction.
How to know ‘trans’
In the ‘trans’ model, the 2 “ends” go in opposite directions.