[5,6-bis(oxomethylidene)-4-[oxomethylidene-phenyl-(2-phenylethynyl)-λ⁵-phosphanyl]cyclohex-2-en-1-ylidene]methanone,iron

Fe2(CO)6(μ-η2-C.tplbond.CPh)(PPh2)

2,3,4,4,6-pentakis-phenyl-1,4-oxaphosphinin-4-ium,bromide

3-methyl-2,4,4,6-tetraphenyl-1,4-oxaphosphinin-4-ium,bromide

二苯基乙炔