The Mercury fluoride (8CI,9CI), with CAS registry number 13967-25-4, has the systematic name of fluoro-(fluoromercurio)mercury. Besides this, it is also called Dimercury difluoride. This chemical is one that exhibits great stability under normal temperature and pressure conditions. And the chemical formula of this chemical is F₂Hg₂.

Physical properties of Mercury fluoride (8CI,9CI): (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 1.

When you are using this chemical, please be cautious about it as the following:
The Mercury fluoride (8CI,9CI) is very toxic by inhalation, in contact with skin and if swallowed. It has danger of cumulative effects. You should keep it away from food, drink and animal foodstuffs. After contact with skin, wash immediately with plenty of soap-suds. This material and its container must be disposed of as hazardous waste. And it is very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment, so avoid release it to the environment. Refer to special instructions / safety data sheets.

You can still convert the following datas into molecular structure:
(1)SMILES: F[Hg][Hg]F
(2)InChI: InChI=1/2FH.2Hg/h2*1H;;/q;;2*+1/p-2/rF2Hg2/c1-3-4-2
(3)InChIKey: FQZUXVBMUHSNRN-VTYQDSBZAN
(4)Std. InChI: InChI=1S/2FH.2Hg/h2*1H;;/q;;2*+1/p-2
(5)Std. InChIKey: FQZUXVBMUHSNRN-UHFFFAOYSA-L