Microwave Spectrum, Structure, and Dipole Moment of ``Cis''-N2F2
- 15 August 1963
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 39 (4) , 1030-1034
- https://doi.org/10.1063/1.1734353
Abstract
The microwave spectra of the F14N14NF and F15N14NF isotopic forms of the ``active'' isomer of N2F2 are reported and from this the structure is derived as planar and cis with the following structural parameters: d(NN)=1.214±0.005 Å, d(NF)=1.384±0.01 Å, ∠FNN=114.5±0.5°. A dipole moment of 0.16±0.01 D has been evaluated from the rotational Stark effect. Transitions of the molecule in an excited vibrational state are reported. From relative intensity measurements of this state, a vibrational frequency of 300±35 cm-1 is estimated. A method is demonstrated enabling the ratio of nuclear spin statistical weights of two transitions to be determined from the growth rate of their intensities with increasing Stark modulation voltage.Keywords
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