Chlorine pentafluoride

Chlorine pentafluoride
Identifiers
CAS Number	13637-63-3 ;
3D model (JSmol)	Interactive image;
ChemSpider	55559 ;
ECHA InfoCard	100.033.734
PubChem CID	61654;
RTECS number	FO2975000;
UNII	O4RJ1HW01H ;
CompTox Dashboard (EPA)	DTXSID90894056 ;
	InChI InChI=1S/ClF5/c2-1(3,4,5)6 Key: KNSWNNXPAWSACI-UHFFFAOYSA-N ;
	SMILES FCl(F)(F)(F)F;
Properties
Chemical formula	ClF5
Molar mass	130.445 g mol−1
Appearance	colorless gas
Density	4.5 kg/m3 (g/L)
Melting point	−103 °C (−153 °F; 170 K)
Boiling point	−13.1 °C (8.4 °F; 260.0 K)
Solubility in water	Hydrolyzes
Structure
Molecular shape	Square pyramidal
Thermochemistry
Std molar; entropy (S⦵298)	310.73 J K−1 mol−1
Std enthalpy of; formation (ΔfH⦵298)	−238.49 kJ mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Chlorine pentafluoride is an interhalogen compound with formula ClF₅. This colourless gas is a strong oxidant that was once a candidate oxidizer for rockets. The molecule adopts a square pyramidal structure with C_4v symmetry, as confirmed by its high-resolution ¹⁹F NMR spectrum. It was first synthesized in 1963.

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