I’m sorry, but the compound ClF13 does not exist in chemistry. You may have confused it with another compound. In chemistry, the element Chlorine (Cl) can only form a few compounds with Fluorine, including ClF, ClF3, and ClF5. All of them are pale yellow gases under standard conditions, have strong oxidizing properties and can react with many other substances.
Once again, I’m very sorry but there is no information about the compound ClF13. This may be a typing error or a misunderstanding of the chemical formula. We advise you to check your information again to ensure accuracy.