Écija P1, Uriarte I1, Basterretxea FJ1, Millán J2, Lesarri A3, Fernández JA1, Cocinero EJ4.
Chemphyschem. 2015 Aug 24;16(12):2609-14. doi: 10.1002/cphc.201500334. Epub 2015 Jul 16.Exo-2,3-epoxynorbornane is studied in the gas phase by pulsed jet Fourier transform microwave spectroscopy in the 4-18 GHz region. Six isotopologues were observed and characterized in their natural abundance. The experimental substitution and effective structures were obtained. Comparison with the structure of norbornane shows significant differences in several bond lengths and valence angles upon introduction of the epoxy group. All the work is supported by quantum chemical calculations. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.