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Träfflista för sökning "WFRF:(Ulrich C. M.) srt2:(2000-2004)"

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1.	Bashkanov, M., et al. (author) Two-pion production in proton-proton collisions 2004 In: Hadron Spectroscopy, Tenth International Conference on Hadron Spectrscopy, Aschaffenburg, Germany 31 August - 6 September 2003. - 0735401977 ; , s. 241-244 Conference paper (other academic/artistic)
2.	Kaulich, B., et al. (author) TwinMic - Combined scanning and full-field imaging microscopy with novel contrast mechanisms 2003 In: Synchrotron Radiation News. ; 16, s. 49-52 Journal article (peer-reviewed)
3.	Sibold, C, et al. (author) Dobrava hantavirus causes hemorrhagic fever with renal syndrome in central Europe and is carried by two different Apodemus mice species 2001 In: Journal of medical virology. - 0146-6615. ; 63:2, s. 158-167 Journal article (peer-reviewed)
4.	Abola, EE, et al. (author) Quality control in databanks for molecular biology 2000 In: BioEssays. ; 22, s. 1024-1034 Research review (pop. science, debate, etc.)
5.	Beck, M., et al. (author) Evaluation of the energetic position of the lowest excited singlet state of beta-carotene by NEXAFS and photoemission spectroscopy 2001 In: Biochimica et Biophysica Acta - Bioenergetics. - 0005-2728 .- 1879-2650. ; 1506:3, s. 260-267 Journal article (peer-reviewed)abstract In carotenoids the lowest energetic optical transition belonging to the pi -electron system is forbidden by symmetry, therefore the energetic position of the S-1 (2(1)A(g)) level can hardly be assessed by optical spectroscopy. We introduce a novel experimental approach: For molecules with ir-electron systems the transition C1s --> 2p(pi*) from inner-atomic to the lowest unoccupied molecular orbital (LUMO) appears in X-ray absorption near edge spectra (NEXAFS) as an intense, sharp peak a few eV below the carbon K-edge. Whereas the peak position reflects the energy of the First excited singlet state in relation to the ionization potential of the molecule, intensity and width of the transition depend on hybridization and bonding partners of the selected atom. Complementary information can be obtained from ultraviolet photoelectron spectroscopy (UPS): At the low binding energy site of the spectrum a peak related to the highest occupied molecular orbital (HOMO) appears. We have measured NEXAFS and UPS of beta -carotene. Based on these measurements and quantum chemical calculations the HOMO and LUMO energies can be derived.

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Result 1-5 of 5

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Type of publication: journal article (3); conference paper (1); research review (1)

Type of content: peer-reviewed (3); other academic/artistic (1); pop. science, debate, etc. (1)

Author/Editor: Beck, S (1); David, C. (1); Kupsc, Andrzej (1); Gustafsson, Leif (1); Demiroers, L. (1); Calén, Hans (1); show more...; Marciniewski, Pawel (1); Wagner, M. (1); Johansson, Tord (1); Marcello, S. (1); Wiedner, Ulrich (1); Abola, EE (1); Bairoch, A (1); Barker, WC (1); Benson, DA (1); Berman, H (1); Cantor, C (1); Doubet, S (1); Hubbard, TJP (1); Jones, T. A. (1); Kleywegt, G J (1); Kolaskar, AS (1); van Kuik, A (1); Lesk, A M (1); Mewes, H W (1); Neuhaus, D (1); Pfeiffer, F (1); Ten Eyck, LF (1); Simpson, RJ (1); Stoesser, G (1); Sussman, J L (1); Tateno, Y (1); Tsugita, A (1); Ulrich, EL (1); Vliegenthart, JFG (1); Beck, M (1); Wintz, P. (1); Bashkanov, M. (1); Clement, H. (1); Doroshkevich, E. (1); Eyrich, W. (1); Fransson, Kjell (1); Höistad, Bo (1); Jacewicz, Marek (1); Kullander, Sven (1); Morsch, H. -P (1); Sefzick, T. (1); Skorodko, T. (1); Stepaniak, J. (1); Wagner, G. J. (1); show less...

University: Royal Institute of Technology (2); Uppsala University (2); Karolinska Institutet (1)

Language: English (5)

Research subject (UKÄ/SCB): Natural sciences (1)

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