1. Department of Chemistry, University of North Texas, Denton, Texas 76203-5017, United States
2. Consultant, Austin, Texas 78730, United States
3. C. R. Brundle and Associates, Soquel, California 95073, United States
4. The XPS Library, Salem, Oregon 97306, United States
5. Pacific Northwest National Laboratory, Richland, Washington 99352, United States