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Träfflista för sökning "WFRF:(Heck A) srt2:(2005-2009)"

Sökning: WFRF:(Heck A) > (2005-2009)

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  • Heck, J., et al. (författare)
  • Structure-property relationship in organometallic compounds regarding SHG
  • 2007
  • Ingår i: Linear and Nonlinear Optics of Organic Materials VII. - : SPIE - International Society for Optical Engineering. - 9780819468017 ; , s. R6530-R6530
  • Konferensbidrag (refereegranskat)abstract
    • Structure-property relationships based on experimental as well as theoretical results will be elucidated. For this purpose different dipolar organometallic compounds were synthesized and characterized. The alteration of the donor and acceptor termini in mono- and dinuclear sesquifulvalene complexes results in spectroscopic and even structural modifications. The structural and 1H NMR spectroscopic changes correlate with the experimentally obtained first hyperpolarizability. The potent electron-donating (D) group [(CpFeCO)2(μ-CO)(μ-C=CH-)] is combined with different electron-accepting units (A), yielding the push-pull complexes [(CpFeCO) 2(μ-CO)(μ-C=CH-CH=A)]. The extent of electron derealization within the π-bridge connecting the donor D and the acceptor A can be monitored by means of 1H NMR spectroscopy. A correlation between the 3J(Hβ-Hγ) coupling constants and the first hyperpolarizability is found, which very much resembles the dependence of the first hyperpolarizability on the bond length alternation. In order to elucidate the dependence of the NLO response on the conformation of triply branched NLOphores, a new series of dendritic D-π-A structures has been synthesized. A combined approach of experiments and computational predictions was applied both on the dendrimers and on the corresponding single-strand chromophores. These results demonstrate that theoretical calculations are able to reproduce experimental results and show the tendency of the effects due to structural changes.
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  • Orchard, S., et al. (författare)
  • Publication Committee Meeting HUPO 5th Annual World Congress Long Beach, CA, USA 30 October 2006
  • 2007
  • Ingår i: Proteomics. - : Wiley. - 1615-9853 .- 1615-9861. ; 7:7, s. 1009-1011
  • Tidskriftsartikel (refereegranskat)abstract
    • This meeting brought together delegates from industry, academia and the publishing houses to facilitate discussions on the level of support from the journals for the use of standardised data formats and their interest in the creation of a network of proteomics repositories collaborating on a coordinated data curation effort. Discussions centred on how best to structure interactions between journals, databases and researchers to improve accessibility to data, and facilitate comparisons between datasets.
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