N-[dibromo-bis(dimethylamino)-λ⁵-phosphanyl]-N-methylmethanamine

N-[2-[[tris(dimethylamino)-λ⁵-phosphanylidene]amino]ethyl]acetamide

N-[bis(dimethylamino)phosphinoselenoyl]-N-methylmethanamine

1,9-dimethyl-2,3,4,6,7,8-hexahydro-[1,3,2]diazaphosphinino[1,2-a][1,3,2]diazaphosphinine