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Isotopic splitting in matrix isolated BF3

1971; Elsevier BV; Volume: 9; Issue: 3 Linguagem: Inglês

10.1016/0009-2614(71)85041-8

1873-4448

Ira W. Levin, Stanley Abramowitz,

Solid-state spectroscopy and crystallography

Small isotopic frequency shift information, if precisely determined, provides an effective constraint on intramolecular force fields. The most precise data for these frequency shift parameters Δν are derived from high resolution, gas-phase infrared spectral analyses. In the present study, we compare for BF3 the isotopic frequency shift Δν4 from a recently published gas-phase study with the value for Δν4 that we obtain from the spectrum of matrix isolated BF3. The excellent agreement between the two methods suggests further applications of the matrix technique for obtaining precise frequency shift data.