"Bis(dinitrogen)bis(1,2-bis(diphenylphosphino)ethane)molybdenum(0)" . . . "Bis(dinitrogen)bis(1,2-bis(diphenylphosphino)ethane)molybdenum(0)" . . . . . "Mo(N₂)₂(Ph₂PCH₂CH₂PPh₂)₂" . . . "Mo(N₂)₂(dppe)₂" .