Contribution from the Department of Chemistry, University of Miami, Coral Gables, Florida 33146, Department of Chemistry and Laboratory for Molecular Structure and Bonding, P.O. Box 30012, Texas A&M University, College Station, Texas 77842-3012, Department of Chemistry and Biochemistry and National High Magnetic Field Laboratory, and Florida State University, Tallahassee, Florida 32306-4390(2005-08-18時点)
