Chlorine perchlorate is a chemical compound with the formula . This chlorine oxide is an asymmetric oxide, with one chlorine atom in +1 oxidation state and the other +7, with proper formula . It is produced by the photodimerization of chlorine dioxide () at room temperature by 436 nm ultraviolet light:
Chlorine perchlorate can also be made by the following reaction at −45 °C.
Properties Chlorine perchlorate is a pale greenish liquid. It is less stable than (chlorine dioxide) and decomposes at room temperature to give (oxygen), (chlorine) and (dichlorine hexoxide):
Chlorine perchlorate reacts with metal chlorides to form chlorine and the corresponding anhydrous perchlorate:
Reactions Reactant Conditions Products — Heat dichlorine hexoxide (80%), chlorine dioxide, chlorine, oxygen — Ultraviolet light dichlorine heptoxide, chlorine, oxygen caesium iodide −45 °C caesium tetraperchloratoiodate(III) or ClF — (M = Cs or ) bromine −45 °C bromine perchlorate () iodine(0.33 mol) −50 °C iodine(III) perchlorate CF3I -112 °C CF3OClO3, , Cl2, , and .
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