Question

Why pi-bond is always formed in association with sigma-bond

Answer 1

@JFraser @electrokid @ghazi

Answer 2

for you to have a pi bond, you first need a sigma bond. Sigma bonds are simply single bonds, pi bonds are double and triple bonds. For you to have a double bond, you first need a single bond right??

Answer 3

a pi bond is also when they point at each other. pi bonding when orbitals are parallel.

Answer 4

I mean Why Do Pi Bonds Co-exists with sigma bonds?

Answer 5

@shubhamsrg @ghazi @electrokid

Answer 6

sigma -> axial.. much less system energy
pi -> parallel orientation.

now, when atoms come close enough, the easiest way to form a bond is along the axis they are approaching.. giving you a sigma bond which forms the primary stability and a chance for parallel bonds to form

Answer 7

@Dama28 pi bonds are a PART of multiple covalent bond between two atoms.
single bond -> 1 sigma
double -> 1 sigma + 1 pi
triple -> 1 sigma + 2 pi