What does the symbol Cp stand for in chemistry?

Answer 1

The symbol Cp is used in organometallic chemistry to denote the cyclopentadienyl ligand.

It was proposed as element symbol for copernicium (now symbol Cn), but since Cp was previously associated with the name cassiopeium (cassiopium), now known as lutetium (Lu), it was declined.

Answer 2

In chemistry, the symbol Cp typically stands for the heat capacity at constant pressure. It is a measure of the amount of heat required to raise the temperature of a substance by a certain amount when the pressure is held constant.