#	Systems	Stoichiometry	Ref.
2	h	h2+_1.25		1	-1		58.9
3	h	h2+_1.5		1	-1		48.7
4	h	h2+_1.75		1	-1		38.3
5	he	he+	he2+_1.0	1	1	-1	56.9
