1	PO2	Hypophosphite	1.000
2	HP4	Phosphinate	1.000
3	2PO	Phosphonate	0.750
4	78T	Oxidanylphosphinate	0.750
5	PHS	Phosphonic acid	0.750
6	PO3	Phosphite ion	0.750
7	VXA	Methylphosphonic acid ester group	0.750