3D-structured supports create complete data sets for electron crystallography

Julian T. C. Wennmacher, Christian Zaubitzer, Teng Li, Yeon Kyoung Bahk, Jing Wang, Jeroen A. Bokhoven and Tim Gruene ()
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Julian T. C. Wennmacher: Paul Scherrer Institut
Christian Zaubitzer: ETH Zürich
Teng Li: ETH Zurich
Yeon Kyoung Bahk: ETH Zürich
Jing Wang: ETH Zürich
Jeroen A. Bokhoven: Paul Scherrer Institut
Tim Gruene: Paul Scherrer Institut

Nature Communications, 2019, vol. 10, issue 1, 1-6

Abstract: Abstract 3D electron crystallography has recently attracted much attention due to its complementarity to X-ray crystallography in determining the structure of compounds from submicrometre sized crystals. A big obstacle lies in obtaining complete data, required for accurate structure determination. Many crystals have a preferred orientation on conventional, flat sample supports. This systematically shades some part of the sample and prevents the collection of complete data, even when several data sets are combined. We introduce two types of three-dimensional sample supports that enable the collection of complete data sets. In the first approach the carbon layer forms coils on the sample support. The second approach is based on chaotic nylon fibres. Both types of grids disrupt the preferred orientation as we demonstrate with a well suited crystal type of MFI-type zeolites. The easy-to-obtain three-dimensional sample supports have different features, ensuring a broad spectrum of applications for these 3D support grids.

Date: 2019
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DOI: 10.1038/s41467-019-11326-2

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