1. Physical and Computational Science Directorate Pacific Northwest National Laboratory Richland WA 99352 USA
2. Chemistry Department Faculty of Science Alexandria University P.O.Box 426 Ibrahimia Alexandria 21321 Egypt
3. Department of Chemistry University of South Florida 4202 East Fowler Ave., CHE205 Tampa FL 33620 USA
4. X-ray Science Division Advanced Photon Source Argonne National Laboratory Argonne IL 60439 USA
5. Department of Chemical & Environmental Sciences University of Limerick Limerick Republic of Ireland