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Microwave spectra of cyclohexyl bromide and cyclohexyl iodide

1983; Elsevier BV; Volume: 100; Issue: 1 Linguagem: Inglês

10.1016/0022-2852(83)90024-3

1096-083X

D. Damiani, F. Scappini, Walther Camináti, G. Corbelli,

Inorganic Fluorides and Related Compounds

The microwave spectra of cyclohexyl bromide and cyclohexyl iodide have been investigated in the gas phase between 8 and 40 GHz. While for cyclohexyl bromide only low resolution spectra have been recorded, for cyclohexyl iodide high resolution spectra of both the equatorial and the axial isomer have been analyzed. The energy difference between the axial and the equatorial form is ΔG° = 0.8 ± 0.4 kcal/mole and ΔE0,0 = 0.54 ± 0.15 kcal/mole in C6H11Br and C6H11I, respectively, the equatorial forms being more stable. Iodine nuclear quadrupole coupling constants for equatorial and axial C6H11I have been obtained. The present analysis contributes to the microwave investigation of the cyclohexyl halides.