✦ LIBER ✦

Microwave spectrum, dipole moment and quadrupole coupling constants of 1,2,5-selenadiazole

✍ Scribed by G.L. Blackman; R.D. Brown; F.R. Burden; J.E. Kent

Publisher: Elsevier Science
Year: 1967
Tongue: English
Weight: 228 KB
Volume: 1
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(67)80041-1

No coin nor oath required. For personal study only.

✦ Synopsis

The microwave spectra of the 803e and 789e isotopic species of 1,2,5-selenadiazole have been assigned and analyzed. The inertial defect shows the molecule to be planar compatable with Czv symmetry. The dipole moment is 1.11 f 0.03 D. 5.2 * 0.3 MHz. 14N quadrupole coupling constants are ]w] < 1 MHz and xCC -XDD = The recent synthesis of 1,2,5-selenadiazole (I) [l] completes the list of known 2,5-diazoles in group six through selenium. The structures of 1,2,5-oxadiazole (II) [2] and 1,2,5_thiadiazole (III) [3] are known from previous microwave studies as are those for the corresponding group six furans, namely furan itself [4], thiophene [5] and the recently studied selenophene [6].

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