Electron spin resonance spectra of a novel oxyl radical OPF$sub 4$ and related species

Journal Article · Wed Feb 11 23:00:00 EST 1976 · J. Phys. Chem., v. 80, no. 4, pp. 409-412

OSTI ID:4065691

Boate, A R; Morton, J R; Preston, K F

Intense ESR spectra observed in $gamma$-irradiated solid solutions of OPF$sub 3$ or NSF$sub 3$ in SF$sub 6$ are ascribed to the free radicals OPF$sub 4$ and NSF$sub 4$, respectively. The radicals are believed to have a distorted trigonal bipyramidal structure in which the equatorial plane contains two fluorine nuclei, an oxygen (or nitrogen) nucleus, and the central phosphorus (or sulfur) nucleus. The magnitudes of the observed hyperfine interactions indicate that the semioccupied orbital belongs to the representation B$sub 1$ in C/sub 2upsilon/ symmetry and consists primarily of an oxygen (or nitrogen) 2p orbital whose nodal plane coincides with the equatorial plane of the molecule. Two derivatives of OPF$sub 4$ have been detected in $gamma$-irradiated SF$sub 6$ containing OPF$sub 2$Cl or OPFCl$sub 2$. These are believed to be OPF$sub 3$Cl and OPF$sub 2$Cl$sub 2$, respectively, in which the chlorine nuclei occupy equatorial positions and show no detectable hyperfine interactions with the unpaired electron. (auth)

• Research Organization: National Research Council of Canada, Ottawa
• NSA Number: NSA-33-028537
• OSTI ID: 4065691
• Journal Information: J. Phys. Chem., v. 80, no. 4, pp. 409-412, Journal Name: J. Phys. Chem., v. 80, no. 4, pp. 409-412; ISSN JPCHA
• Country of Publication: United States
• Language: English

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