 | Acta Crystallographica Section B Acta Crystallographica Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS |
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![[Figure 2]](gw5012fig2mag.jpg)
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Figure 2
Colour changes in four single crystals of bianthrone as a function of pressure. The first four images were taken with the crystals inside a diamond–anvil cell; the fragments labelled `R' in the 1.4 GPa image are ruby chips used for pressure measurement. The gasket hole is much larger in the 7.5 GPa image because the gasket was beginning to fail (note the crack appearing at the top right). The last image shows two of the crystals as recovered from the cell: this image is only partially successful in showing that the remaining red colouration is due to a surface effect while the bulk of the crystal was yellow – the effect was rather more convincing in the original microscope images. A third crystal was used for data collection, but the forth adhered to the inner wall of the gasket during downloading and was not recovered. |
![[Figure 2]](gw5012fig2.jpg)
| STRUCTURAL SCIENCE CRYSTAL ENGINEERING MATERIALS |
ISSN: 2052-5206
