title: Structural distortion of the epoxy groups in norbornanes: a rotational study of exo-2,3-epoxynorbornane.
abstract: 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.
authors.affiliation: Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV-EHU), Apartado 644, 48080 Bilbao (Spain)http://grupodeespectroscopia.es/MW/
authors.forename: Patricia
authors.initials: P
authors.lastname: Écija
authors.affiliation: Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV-EHU), Apartado 644, 48080 Bilbao (Spain)http://grupodeespectroscopia.es/MW/
authors.forename: Iciar
authors.initials: I
authors.lastname: Uriarte
authors.affiliation: Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV-EHU), Apartado 644, 48080 Bilbao (Spain)http://grupodeespectroscopia.es/MW/
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Basterretxea
authors.affiliation: Departamento de Química, Facultad de Ciencias, Estudios Agroalimentarios e Informática, Universidad de La Rioja, 26006 Logroño (Spain).
authors.forename: Judith
authors.initials: J
authors.lastname: Millán
authors.affiliation: Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid (Spain).
authors.forename: Alberto
authors.initials: A
authors.lastname: Lesarri
authors.affiliation: Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV-EHU), Apartado 644, 48080 Bilbao (Spain)http://grupodeespectroscopia.es/MW/
authors.forename: José A
authors.initials: JA
authors.lastname: Fernández
authors.affiliation: Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV-EHU), Apartado 644, 48080 Bilbao (Spain)http://grupodeespectroscopia.es/MW/. emiliojose.cocinero@ehu.es.
authors.forename: Emilio J
authors.initials: EJ
authors.lastname: Cocinero
keywords: bridged bicyclic rings; isotopes; microwave spectroscopy; rotational spectroscopy; structure elucidation