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Advanced Crystallographic Methods: Experimental Electron Densities and the Study of Excited State Structure

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Current Challenges on Large Supramolecular Assemblies

Part of the book series: NATO Science Series ((ASIC,volume 519))

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Abstract

As techniques for structure determination are further perfected, other crystallographic applications, of relevance for our understanding of the electronic and geometric structure of solids and molecules, merit attention. The first is the mapping of charge densities in crystals, based on accurate X-ray diffraction intensities, usually collected at low temperatures and with significant redundancy in the data sets. New developments, including area detectors and novel software, are opening the possibility of routine determination of the charge distribution in crystals. The second application discussed here, which is in a much less advanced state, exploits the time structure of the third-generation synchrotron sources through combined laser/X-ray experiments, in which a laser-triggered process is probed by the X-ray photon beam. Such photocrystallographic experiments will allow the study of transient species in crystals.

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Authors and Affiliations

  1. Chemistry Department, State University of New York at Buffalo, Buffalo, NY, 14260-3000, USA

    Philip Coppens

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  1. Philip Coppens
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Editors and Affiliations

  1. Centre Pharmaceutique, CNRS — Université Paris-Sud, Châtenay-Malabry, France

    George Tsoucaris

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Coppens, P. (1999). Advanced Crystallographic Methods: Experimental Electron Densities and the Study of Excited State Structure. In: Tsoucaris, G. (eds) Current Challenges on Large Supramolecular Assemblies. NATO Science Series, vol 519. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5284-6_20

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  • DOI: https://doi.org/10.1007/978-94-011-5284-6_20

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-6224-4

  • Online ISBN: 978-94-011-5284-6

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