Chlorine and oxygen can bond in many ways:
chlorine monoxide, , chlorine (II) oxide
chlorine peroxide, , dimer of chlorine (II) oxide
chlorine dioxide, , chlorine (IV) oxide
chloroperoxyl, chlorine trioxide, ClO3, chlorine (VI) oxide dichlorine monoxide, Cl2O, chlorine (I) oxide Three dichlorine dioxides: ClO dimer, Cl2O2, chlorine (I) peroxide chloryl chloride, ClO2Cl, chlorine (0,IV) oxide chlorine chlorite, ClOClO, chlorine (I,III) oxide dichlorine trioxide, Cl2O3, chlorine (III) oxide, is hypothetical dichlorine trioxide, Cl2O3, chlorine (I,V) oxide (second isomer) dichlorine tetroxide, also known as chlorine perchlorate, ClOClO3, chlorine (I,VII) oxide dichlorine pentoxide, Cl2O5, is hypothetical dichlorine hexoxide, chloryl perchlorate, Cl2O6 or , chlorine (V,VII) oxide dichlorine heptoxide, Cl2O7, chlorine (VII) oxide chlorine tetroxide, chlorine (VII) oxide peroxide, (OClO3)2
Several ions are also chlorine oxides: chloryl, perchloryl, hypochlorite, ClO− chlorite, ClO2− chlorate, ClO3− perchlorate, ClO4−
See also
Oxygen fluoride
Bromine oxide
Iodine oxide
Sulfur fluorides, some of which are valence isoelectronic with chlorine oxides.
References
Chlorine oxoacids and structure of dichlorine oxides. Chem. Educator, Vol. 16, 2011, vol. 16, pp. 275—278