1. a Department of Chemistry and Biochemistry-0358 , University of California at San Diego , La Jolla , California , 92093-0358
2. b Quantum Design , 11578 Sorrento Valley Rd., Suite 30, San Diego , California , 92121
3. c Department of Chemistry , Indiana University , Bloomington , Indiana , 47405-4001
4. d Molecular Structure Center, Indiana University , Bloomington , Indiana , 47405-4001