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Contrasting complexes of hydrogen and hydrogen fluoride by high resolution spectroscopy.

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Presentation on theme: "Contrasting complexes of hydrogen and hydrogen fluoride by high resolution spectroscopy."— Presentation transcript:

1 Contrasting complexes of hydrogen and hydrogen fluoride by high resolution spectroscopy

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3 The structure of the complex of hydrogen and carbonyl
sulfide. For oH2-OCS the complex is planar with the rotation of the hydrogen species quenched by the weak intermolecular interaction. For pH2-OCS the hydrogen is spherically distributed. The similarity of the frequencies of the rotational transitions of oH2-OCS and pH2-OCS is striking and completely surprised us.

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7 BIBLIOGRAPHY OF ROTATIONAL SPECTRA OF WEAKLY BOUND COMPLEXES
Stewart Novick Department of Chemistry Wesleyan University Middletown, Connecticut wesleyan.edu/chem/faculty/novick/vdw.html

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10 Ar F H ∑1 JHF = 1 H Ar F ∏1 JHF = 1 Ar F H ∑o JHF = 0

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14 EArHF - EHF, j asymptotic
cm-1 ^H Ar | F ∏1 J=1 ∑1 Ar—>FH ∑0 Ar<—HF

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16 ∑0 Ar<—HF ∑ 1 B Ar<—FH RAr-F~ √1/B ∏1 R≈3.52±.03 H Ar F v rout Å
.104 ∑0 Ar<—HF .103 B Ar<—FH .102 RAr-F~ √1/B ∏1 cm-1 R≈3.52±.03 .101 H Ar F .100 v rout Å rin

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