# Species Formula 1930 HexamethyldisilaneC6H18Si2 1931 HexamethyldisilazaneC6H19NSi2 1932 HexamethyldisiloxaneC6H18OSi2 1933 H6Si2O7H6O7Si2 1934 TrisilaneH8Si3 1935 Cyclopentasilane (Geo)H10Si5 1936 Si(SiMe3)4 (GUFMOJ) (Geo)C12H36Si5 1937 Si(SiMe3)4 (GUFMOJ)C12H36Si5 1938 Phosphorus, cationP 1939 Phosphorus, atomP 1940 Phosphinidene HP 1941 PhosphinoH2P 1942 Phosphine cationH3P 1943 Phosphine (Geo)H3P 1944 PhosphineH3P 1945 PH4(+)H4P 1946 Carbon monophosphideCP 1947 Carbon phosphide (Geo)CP 1948 MethinophosphideHCP 1949 MethinophosphineHCP 1950 Methinophosphide (Geo)HCP
UHF TRIPLET PM7 Phosphinidene HR=JANAF86 H=60.6 P 0.00000000 +0 0.0000000 +0 0.0000000 +0 0 0 0 H 1.54080480 +1 0.0000000 +0 0.0000000 +0 1 0 0