Evidence for ligated hexafluorophosphate(V)

Bell, Shiela A.; Lancaster, John C.; McWhinnie, William R.

doi:10.1016/0020-1650(71)80174-5

Cited by 9 publications

(2 citation statements)

References 3 publications

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“…These criteria for anion coordination were applied previously, to conclude that Cu(py),(PF,), contains "semi-coordinated" anions (1) and that the Ni(py),(EF,), and Ni(4mpy),(EF6), complexes contain weakly interacting anions (4,6). These criteria for anion coordination are clearly met in the copper complexes studied in the present work (Table 4).…”

Section: Infrared Spectroscopysupporting

confidence: 65%

“…~o o d methylpyridine complexes containing hexafluoro-evidence for conventional anion coordination, or at phosphate and hexafluoroarsenate it has been pas-least "semi-coordination", was obtained from a sible to examine the coordinating tendencies of combination of electronic, epr, and infrared specthese very weakly basic anions (1)(2)(3)(4)(5)(6). The pF6-and tral studies.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic and spectroscopic studies of structure and bonding in hexafluorophosphate and hexafluoroarsenate complexes of copper(II)

Morrison¹,

Thompson²

1982

Can. J. Chem.

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. Can. J. Chem. 60, 1048 (1982).Complexes of composition CuL4(EF6), (where L is pyridine, 3-methylpyridine, or 4-methylpyridine and E is P or As) have been prepared and characterized by epr, electronic and infrared spectroscopic, and magnetic susceptibility studies. Results are consistent with elongated tetragonal-octahedral structures with coordinated anions. The coordinating strength of PF6-is estimated to be less than that of AsF6-and both are considered weaker than perchlorate. Analysis of the epr data indicates significant metal to heterocyclic ligand a-electron delocalization, the extent and nature of which depends on the orientation of the heterocyclic ring in the CuL, chromophore. Analysis of infrared data suggests that the intensities of the v, and v, vibrations as they occur in EF,-complexes generally provide an indication of the strength of metal-anion interactions. Ona prepart des complexes deformule CuL,(EF,),(ou L = pyridine, methyl-3 pyridine ou mtthyl-4pyridine et E = Pou As) et on les a caractCris6 par des etudes de rpe, de spectroscopie infrarouge et de susceptibilite magnetique. Les resultats sont en accord avec des structures tktragonales-octahtdriques allongees avec des anions coordones. On Cvalue la force de coordination de PF6-comme itant inferieure a celle de AsF6-et on considkre ces deux forces plus faibles que celle du perchlorate. L'analyse des donnees de la rpe indique une delocalisation importante de I'electron a du ligand heterocyclique par rapport au metal. La nature et le taux de cette dtlocalisation dependent de I'orientation de I'hCtCrocycle dans le chromophore CuL,. L'analyse des donnees infrarouges suggtre que les intensites des vibrations v, et v, telles qu'elles se produisent dans les complexes de EF6-constituent gtneralement une indication de la force des interactions mttal-anion.[Traduit par le journal]

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Section: Infrared Spectroscopysupporting

confidence: 65%