207443-33-2

Basic information

• Product Name: P(C₆H₅)4⁽¹⁺⁾*[OsF₅(CO)]^(1-)=[P(C₆H₅)4][OsF₅(CO)]
• CAS NO: 207443-33-2
• Molecular Weight: 652.599
• Mol File: 207443-33-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: P(C₆H₅)4⁽¹⁺⁾*[OsF₅(CO)]^(1-)=[P(C₆H₅)4][OsF₅(CO)](CAS DataBase Reference)
• NIST Chemistry Reference: P(C₆H₅)4⁽¹⁺⁾*[OsF₅(CO)]^(1-)=[P(C₆H₅)4][OsF₅(CO)](207443-33-2)
• EPA Substance Registry System: P(C₆H₅)4⁽¹⁺⁾*[OsF₅(CO)]^(1-)=[P(C₆H₅)4][OsF₅(CO)](207443-33-2)

Safety Data

• Hazardous Substances Data: 207443-33-2(Hazardous Substances Data)

Upstream product

• 7789-27-7 thallium(I) fluoride 
• 7782-50-5 chlorine 
• 2001-45-8 tetraphenyl phosphonium chloride 

Relevant articles and documents

Synthesis and spectroscopic characterization of fluorocarbonylosmates, normal coordinate analysis and crystal structure of fac-[OsF3Br2(CO)]2-

By treatment of (n-Bu4N)2[OsBr5(CO)] with TlF in C6H5CF3 fac-(n-Bu4N)2[OsF3Br2(CO)] is formed, from which salts with the cations (Et4N)+, (py2CH2)2+, Tl+ and Cs+ are obtainable. Oxidation of the by-product [OsF5(CO)]2- with Cl2 yields [OsF5(CO)]- which 19F NMR spectrum reveals a quintet (δF = 89.9) and a dublet (43.5 ppm) in the ratio 1:4 with coupling constants 2JFF = 94.9 Hz. Simultaneously produced mer-[OsF3Cl2(CO)]- exhibits in the high field region a triplet (δF = -70.4) and a dublet (-66.2 ppm) in the ratio 1:2 and 2JFF = 9.5 Hz. The X-ray structure determinations of fac-Tl2[OsF3Br2(CO)] (1) (monoclinic P21/n, a = 11.143(12), b = 11.654(4), c = 13.751(10) A?, β = 91.50(6)°, Z = 8) and fac-(py2CH2)[OsF3Br2(CO)] · 1/2(CH3)2CO (2) (triclinic, P1?, a = 8.432(1), b = 9.009(1), c = 12.402(2) A?, α = 80.30(1), β = 79.68(2), γ = 68.14(1)°, Z = 2) result in nearly Cs symmetry of the complex anion with bond lengths in the ranges Os-F = 1.98-2.08, Os-Br = 2.45-2.46, Os-C = 1.83-1.84, C-O = 1.10 - 1.17 A?. Using the molecular parameters of the X-ray determinations the IR spectra have been assigned by normal coordinate analysis. The valence force constants are fd(CO) = 15.4-15.7, fd(OsC) = 4.4-4.7, fd(OsF) = 2.4-2.7, fd(OsF) = 1.6-2.0, fd(OsBr) = 1.7-2.1 mdyn/A?.