3582-11-4Relevant articles and documents
The Infrared Spectrum of Chlorophosphaethyne, ClCP
Naughton, D. Mc,Bruget, D. N.
, p. 336 - 350 (1993)
C-Chlorophosphaethyne (ClCP) has been generated by the pyrolysis of Cl3CPCl2 over granulated zinc at 550 deg C and the high-resolution spectrum in the region 4000-100 cm-1 has been recorded, analyzed, and assigned.Altogether, more than 6500 transitions have been assigned.The observed bands include all three fundamentals as well as number of overtone, combination, and difference bands.For all the bands both the 35Cl and 37Cl isotopomers were observed, and for the ν3 band the 35Cl13C isotopomer was observed in natural abundance.The ground state rotation constants B0 and distorsion constants D0 were found to be 0.10074626(10) and 1.2544(10)E-8 cm-1 and 0.0981080(14) and 1.1950(16)E-8 cm-1 for the 35Cl and 37Cl isotopomers, respectively, and 0.10073766(72) and 1.158(11)E-8 cm-1 for the 13C species.After accounting for Fermi resonance effects the vibration-rotation parameters, αi, for all three fundamentals have been estimated and used to calculate the equilibrium B values; Be = 0.10094715(89) and 0.09830590(100) for the 35Cl and 37Cl isotopomers, respectively.The equilibrium geometry is calculated to be rCP=155.26(61) and rC-Cl=163.41(62) pm.The available fundamental frequencies for all three isotopomers have been used to calculate the harmonic force constants: fR(C-Cl)- 4.621; fr(CP)=9.033; fRr=0.499 aJ Angstroem-2; and fα=0.348 aJ.
Some Novel Phosphoranides containing Pentafluorophenyl Groups
Ali, Rusmidah,Dillon, Keith B.
, p. 2593 - 2596 (2007/10/02)
Several novel phosphoranides containing pentafluorophenyl groups, of formulae - (X= Cl, Y= Cl, Br, or I; X= Br, Y= Br or I; X= NCS, Y= Cl, Br, I or NCS) or - (X= Cl, Y= Cl, Br, or I; X= Br, Y= Br or I; X= CN, Y= Cl, Br, I, or NCS) have been identified in solution by means of 31P n.m.r. spectroscopy.Most of the species have been isolated as salts with tetra-alkylammonium ions, and further characterised by elemental analysis and (in some cases) i.r. spectroscopy.These ions -> represent the first simple phosphoranides with an organo-group attached to phosphorus and no cyano-groups present.The species with two pentafluorophenyl groups are the first phosphoranides with two organo-groups directly bound to phosphorus.No acceptor properties towards halide ions were shown by P(CCl3)Cl2 or P(C6F5)2(NCS).
