·BCl3,
BeCl2, AlCl3
·HCOO-,
C2O4-2, CH3COO-,
CH2ClCOO-, CHCl2COO-
·PO3-3,
PO4-3, P2O7-4, P3O10-5,
SO4-2, ClO3-, ClO4-,
ClO2-
·HCHO,
CH3CHO, CH3COOH, C2H4, C3H4,
C3H6
·XeF2,
PCl3, XeF4, ICl5, NNO, CH3CH2O-,
CH3OCH3,
·H2O2,
N2H4, I3-, NCl3H+,
BF4-, NH3BCl3, SiO4-4,
Si2O7-6
·CH3+,
OH·, OOH·, CH3OO·, NO·, NO2·,
NO2-, H3O+