1. University of Bremen; Department 2: Biology/Chemistry; Institute of Inorganic Chemistry and Crystallography; Leobener Str. 3 and 7 Bremen Germany
2. University of Western Australia; School of Molecular Sciences; 35 Stirling Highway Perth WA 6009 Australia
3. Virginia Polytechnic Institute and State University; Departments of Geoscience, Material Science and Engineering, and Mathematics; Blacksburg Virginia 24061 USA