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Snap shots of 1 of life's central processes
Date:5/15/2013

cluster, specifically while additional light is being absorbed and water is oxidized to yield oxygen. "We're planning a series of time-resolved X-ray diffraction and spectroscopy experiments to examine the reaction at room temperature and in the process image all the various intermediate stages," explains Wernet. The scientists' hope is to glean highly specific insights into the reactions as they take place at the Mn4CaO5 cluster and identify the intermediate stages that are necessary for the photosynthetic oxidation of water.

Here, the four experts complement each other beautifully. Junko Yano of the Lawrence Berkeley National Laboratory and chemist Athina Zouni of Humboldt-University Berlin are renowned photosystem II protein spectroscopy and X-ray crystallography experts, respectively. Uwe Bergmann and his team at the Linac Coherent Light Source, USA, will be involved with the spectroscopy instrumentation for taking the snap shots using hard X-rays. HZB's own Philippe Wernet will be examining the time-resolved samples using soft X-rays at BESSY II. Lastly, the joint measurements at the Linac Coherent Light Source will be of central importance.


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Contact: Dr. Antonia Rötger
antonia.roetger@helmholtz-berlin.de
49-308-062-43733
Helmholtz Association of German Research Centres
Source:Eurekalert

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