What is triethylphosphine compound?

Triethylphosphine is an organophosphorus compound with molecular formula, C6H15P or P(CH2CH3)3 or Et3P. The preferred IUPAC name is triethylphosphane.

 What is trimethylphosphine?

Trimethylphosphine is an organophosphorus compound with molecular formula, C3H9P or P(CH3)3. The preferred IUPAC name is trimethyl-phosphane and the systematic IUPAC is trimethylphosphorus.