13815-34-4

Basic information

• Product Name: phosphorus(1+), trifluorohydro-, iron salt
• CAS NO: 13815-34-4
• Molecular Formula: H₅F₁₅FeP₅
• Molecular Weight: 500.7268
• Mol File: 13815-34-4.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: phosphorus(1+), trifluorohydro-, iron salt(CAS DataBase Reference)
• NIST Chemistry Reference: phosphorus(1+), trifluorohydro-, iron salt(13815-34-4)
• EPA Substance Registry System: phosphorus(1+), trifluorohydro-, iron salt(13815-34-4)

Safety Data

• Hazardous Substances Data: 13815-34-4(Hazardous Substances Data)

Upstream product

• 13463-40-6 iron pentacarbonyl 
• 7783-55-3 trifluorophosphane 
• 2551-62-4 sulfur(VI) hexafluoride 
• 74910-62-6 bis(pentadienyl)iron 

Relevant articles and documents

SF6-Sensitized Infrared Photodecomposition of Fe(CO)5

The SF6-sensitized infrared photodecomposition of Fe(CO)5 induced by a transversely excited atmospheric (TEA) CO2 laser has been studied.The decomposition of Fe(CO)5 proceeds via sequential decarbonylation after thermal equilibrium is attained through collisional V-V and V-T/R processes.Fe(CO)4(PF3) is formed as a dominant product at lower conversion in a mixture of SF6-Fe(CO)5- PF3, which indicates that the rate-determining process is the first decarbonylation of excited Fe(CO)5 into Fe(CO)4 and CO, and that Fe(CO)4 is trapped by PF3 to yield Fe(CO)4(PF3).In addition, Fe(CO)3(PF3)2, Fe(CO)2(PF3)3, and Fe(CO)(PF3)4 are formed progressively with increasing conversion of Fe(CO)5.The higher PF3-substituted iron complexes are formed by repeated series of thermal excitation, decarbonylation, and trapping by PF3.Final products are CO and iron particles, following the shot by shot stoichiometry of Fe(CO)5 --> Fe + 5CO.The iron particles are found to by γ-iron or austenite, (Fe-C)4F, including 0.75 wt percent carbon which has a mean particle size of 80 Angstroem and a face-centered-cubic structure.Variations of the decomposition probability by changing the irradiation parameters are qualitatively explained by changes of kinetic temperture in irradiated volume.The decomposition mechanism in SF6-sensitized infrared photolysis is compared with those in conventional pyrolysis, infrared multiple-photon decomposition, and uV photolysis.

Phosphorus trifluoride substitution compounds of iron pentacarbonyl

The reaction of Fe(CO)5 and PF3 at elevated temperatures and pressures results in the formation of mixtures of Fe(CO-)5-x- (PF3)x compounds where x has values of 1-5. The degree of replacement of carbon monoxide by phosphorus trifluoride is dependent upon the temperature of reaction with the average x in the above formula being 1 at 170° and 3-4 at 280° under pressures of 200-500 p.s.i. Higher temperatures lead to decomposition. Ultraviolet irradiation of mixtures with an average x of about 3 in the presence of PF3 gas produces higher substitution without the problem of decomposition. The compounds were separated and isolated by means of vapor phase chromatography. They are yellow liquids except Fe(PF3)5 which melts to a yellow liquid at 44°. Infrared spectra of these compounds suggest some interesting structure anomalies but it is obvious that the structures are not simple trigonal bipyramids.