1. SETI Institute, Mountain View, CA 94043, USA
2. Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44242, USA
3. Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
4. Precision Spectroscopy Division, SPring-8/JASRI, Sayo, Hyogo 679-5198, Japan
5. Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA