Microwave spectrum of the HCO radical
- 1 January 1974
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 60 (1) , 207-215
- https://doi.org/10.1063/1.1680769
Abstract
The microwave spectrum of the K -doublet transitions of the free radical HCO has been observed in the N = 1, 2, and 3 rotational levels. The spectrum was analyzed and the following spectroscopic parameters were determined from the data: B − C = 2836.38 ± 0.45 MHz, ε = 224.62 ± 0.65 MHz, |εz z| = 8.12 ± 0.48 GHz, τ = 5.06 ± 0.13 MHz, D = 0.049 ± 0.019 MHz. The newly measured rotational constant was used along with previously measured constants to determine that the geometry of the HCO radical is rCH = 1.11 Å, rCO = 1.17 Å, θHCO = 127°.Keywords
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