DAT Chapter 1 Bonding, resonance, and molecular geometry Flashcards
Double bond has what
one sigma and one pi bond
triple bond has what
one sigma
2 pi bonds
determining greatest resonance contributor
most stable resonance structure will have a full octet on every atom
most stable resonance structure will have the smallest possible number of charges
most stable resonance structure will have negative charges on the most electronegative atoms and positive charges on the least electronegative atoms
What moves in resonance
only electrons move
pi electrons
lone pair electrons
negative charges
Newman project, order of stability
staggered =most stable
gauche = in between
eclipsed = least stable
Does carbocation have a full octet?
no
Oxygen and nitrogen that does have a _______ do have a ___ octet
charge
full
A + on an atom means
missing 2 electrons
Placing the _____ substituents in the equatorial positions will usually achieve the greatest stability in cyclohexane rings
largest
Equatorial positions are more stable than ___
axial