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RESEARCH PRODUCT
Total-scattering pair-distribution function of organic material from powder electron diffraction data.
Martin U. SchmidtUte KolbTatiana GorelikSimon J. L. Billingesubject
Materials scienceReflection high-energy electron diffractionElectron diffractionGas electron diffractionScanning transmission electron microscopyAnalytical chemistryEnergy filtered transmission electron microscopySelected area diffractionInstrumentationPowder diffractionElectron backscatter diffractiondescription
AbstractThis paper shows that pair-distribution function (PDF) analyses can be carried out on organic and organometallic compounds from powder electron diffraction data. Different experimental setups are demonstrated, including selected area electron diffraction and nanodiffraction in transmission electron microscopy or nanodiffraction in scanning transmission electron microscopy modes. The methods were demonstrated on organometallic complexes (chlorinated and unchlorinated copper phthalocyanine) and on purely organic compounds (quinacridone). The PDF curves from powder electron diffraction data, called ePDF, are in good agreement with PDF curves determined from X-ray powder data demonstrating that the problems of obtaining kinematical scattering data and avoiding beam damage of the sample are possible to resolve.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-12-17 | Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada |