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>The rotational spectrum, H,19F nuclear spinndash;nuclear spin coupling, D nuclear quadrupole coupling, and molecular geometry of a weakly bound dimer of carbon monoxide and hydrogen fluoride
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The rotational spectrum, H,19F nuclear spinndash;nuclear spin coupling, D nuclear quadrupole coupling, and molecular geometry of a weakly bound dimer of carbon monoxide and hydrogen fluoride
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机译：The rotational spectrum, H,19F nuclear spinndash;nuclear spin coupling, D nuclear quadrupole coupling, and molecular geometry of a weakly bound dimer of carbon monoxide and hydrogen fluoride
A dimer formed between carbon monoxide and hydrogen fluoride has been detected and identified in the gas phase through its rotational spectrum by using a pulsed Fourier transform microwave spectrometer equipped with a pulsed nozzle source of the dimers and a Fabryhyphen;Perot cavity. Rotational constantsB0, centrifugal distortion constantsDJ, deuterium nuclear quadrupole coupling constants khgr;D, and the nuclear spinndash;nuclear spin coupling constantsSHFand SDFfor the vibrational ground state of each of the five isotopic species investigated are as follows (the errors inB0andDJare discussed in the text): thinsp; thinsp; thinsp; thinsp; thinsp; thinsp; thinsp; thinsp; thinsp; thinsp; thinsp; thinsp; thinsp; thinsp; These spectroscopic constants have been interpreted in terms of a linear equilbrium geometry in which the atoms are in the order OCsdot;sdot;sdot;HF and in which the weak binding is therefore through a hydrogen bond to the carbon atom. Various quantities characterizing the intermolecular interaction potential have also been estimated from the above constants and are used with those similarly determined to make comparison both within the series OCsdot;sdot;sdot;HX (X = F, Cl, and Br) and among the different series Bsdot;sdot;sdot;HX (B = Ar, Kr, OC; X = F, Cl, and Br).
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