1. Department of Chemistry Southern Oregon University 97520 Ashland Oregon USA
2. Department of Earth and Planetary Sciences University of California 95616 Davis California USA
3. Department of Chemistry University of California 95616 Davis California USA
4. Department of Civil and Environmental Engineering and Earth Sciences; University of Notre Dame 46556 South Bend Indiana USA
5. Department of Chemistry and Biochemistry University of Notre Dame 46556 South Bend Indiana USA