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Crystallographic Structure Elucidation

Overview

Single-crystal X-ray crystallography is widely considered to be the gold standard for the structure elucidation of crystalline solids. Single crystal crystallographic methods are used to establish structure-property relationships for new compounds ranging from organic and inorganic small molecules, to extended solids, to proteins. Additionally, powder crystallography has emerged over the past 30 years as powerful methods for investigating the structures of materials that cannot be studied with single-crystal methods. Please check out some selected publications resulted by IMSERC users along with the list of other crystallographic services available in IMSERC.

service-crystallography-structure-elucidation
Example of a crystallographic structure elucidation process flow where one single crystal (left) is exposed to X-rays, diffraction intensity data are collected (middle), and structure is determined (right) after analysis of the diffraction data

Applications

  • Determination of unit cell and bonding environment (bond-lengths, bond-angles, cation-anion coordination, site-ordering, etc.)
  • Determination of packing of molecules and co-crystals
  • Determination of Hydrogen bonding
  • Determination of enantiomers
  • Refinement of modulated and twinned structures (incommensurate, commensurate, composite superstructures)
  • High resolution data for charge density measurement and precise assignment of atoms with similar chemical environment

Please visit our expanded list of application per research area for more details about this technique.

If you are interested in utilizing any of these applications for your research Start a project

Selected Publications

  • Structure solution from variable temperature powder diffraction data
    Ag 2 Se to KAg 3 Se 2 : Suppressing Order-Disorder Transitions via Reduced Dimensionality
    Rettie, A. J. E.; Malliakas, C. D.; Botana, A. S.; Hodges, J. M.; Han, F.; Huang, R.; Chung, D. Y.; Kanatzidis, M. G. [10.1021/jacs.8b04888]

    https://doi.org/10.1021/jacs.8b04888

  • Noncentrosymmetric structure
    Periodic Tendril Perversion and Helices in the AMoO 2 F 3 (A = K, Rb, NH 4 , Tl) Family
    Hancock, J. C.; Nisbet, M. L.; Zhang, W.; Halasyamani, P. S.; Poeppelmeier, K. R. [10.1021/jacs.0c01218]

    https://doi.org/10.1021/jacs.0c01218

  • Single crystal studies of gas-host interactions at 8 K
    CO Binding at a Four-Coordinate Cobaltous Porphyrin Site in a Metal–Organic Framework: Structural, EPR, and Gas Adsorption Analysis
    Gallagher, Audrey T.; Malliakas, Christos D.; Harris, T. David [10.1021/acs.inorgchem.7b00292]

    https://doi.org/10.1021/acs.inorgchem.7b00292

  • Incommensurate modulated structure from single crystal data
    Charge Density Wave and Narrow Energy Gap at Room Temperature in 2D Pb 3-x Sb 1+x S 4 Te 2- δ with Square Te Sheets
    Chen, H.; Malliakas, C. D.; Narayan, A.; Fang, L.; Chung, D. Y.; Wagner, L. K.; Kwok, W. K.; Kanatzidis, M. G. [10.1021/jacs.7b06446]

    https://doi.org/10.1021/jacs.7b06446