Xenon dichloride is the only chloride

Chloride

The chloride ion is formed when the element chlorine, a halogen, picks up one electron to form an anion Cl−. The salts of hydrochloric acid HCl contain chloride ions and can also be called chlorides. The chloride ion, and its salts such as sodium chloride, are very soluble in water...

 of xenon

Xenon

Xenon is a chemical element with the symbol Xe and atomic number 54. The element name is pronounced or . A colorless, heavy, odorless noble gas, xenon occurs in the Earth's atmosphere in trace amounts...

 which can be produced by chemical reactions. Its formula is XeCl₂. The compound can be prepared by using microwave discharge technique towards the mixture of xenon and chlorine, and it can be isolated from condensate trap. A paper tried to use xenon, chlorine

Chlorine

Chlorine is the chemical element with atomic number 17 and symbol Cl. It is the second lightest halogen, found in the periodic table in group 17. The element forms diatomic molecules under standard conditions, called dichlorine...

 and boron trichloride

Boron trichloride

Boron trichloride is a chemical compound with the formula BCl3. This colorless gas is a valuable reagent in organic synthesis. It is also dangerously reactive.-Production and properties:Boron reacts with halogens to give the corresponding trihalides...

 to produce XeCl₂·BCl₃, but only generated xenon dichloride.

However, it is still doubtful whether xenon dichloride is a compound or a supermolecule

Supermolecule

The term supermolecule or supramolecule, was introduced by K.L. Wolf in 1937 to describe hydrogen bonded acetic acid dimers. The study of non-covalent association of complexes of molecules has since developed into the field of supramolecular chemistry...

 connected with secondary bond.