[1] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,BERKELEY,CA 94720
[2] UNIV CHICAGO,JAMES FRANCK INST,DEPT CHEM,CHICAGO,IL 60637
[3] STEVENS INST TECHNOL,DEPT CHEM & CHEM ENGN,HOBOKEN,NJ 07030
[4] UNIV CALIF LAWRENCE LIVERMORE LAB,THEORET & MOLEC PHYS GRP,LIVERMORE,CA 94550