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Microwave Spectra of Dichlorine Monoxide in Its Excited Vibrational States

M. Sugie, M. Ayabe, H. Takeo, and C. Matsumara
[J. Mol. Struct., Vol.352/353, pp.259-265, 1995]

The microwave spectra of dichlorine monoxide (Cl2O) in its excited vibrational states were measured in the frequency range 12-56 GHz. The Coriolis interaction between the nu1 and nu3 states was analyzed and the following equilibrium rotational constants and equilibrium structure were obtained: Ae = 41938.9(4) MHz, Be = 3704.73(4) MHz, Ce=3404.07(4) MHz, re(O-Cl)=1.6959(1) Å, and anglee(Cl-O-Cl) = 110.88(1)°. The off-diagonal element chiab of the nuclear quadrupole interaction constant was determined by analysis of anomalies observed in the hyperfine splittings.

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