✦ LIBER ✦

H,19F Nuclear-spin-nuclear-spin coupling in the rotational spectrum of (CH3)315N...HF and the lengthening of the HF bond

✍ Scribed by A.C. Legon; C.A. Rego

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 425 KB
Volume: 154
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(89)87133-7

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✦ Synopsis

Pulsed-nozzle, Fourier-transform microwave spectroscopy has been used to establish the ground-state spectroscopic constants &,=2734.6105(11) MHz, D,=1.49(7) kHz, DIK=35.3(4) kHz and Dj$= -230(g) kHz for the dimer (CH,),"N...HF from its rotational spectrum. The H,19F spin-spin coupling constant D zF is interpreted in terms of a lengthening Sr= 0.04 1 ( 1 I ) A of the HF bond when the HF molecule achieves its equilibrium position in the dimer.

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