[1] SUNY ALBANY,DEPT CHEM,ALBANY,NY 12222
[2] EPSRC,DARESBURY LAB,WARRINGTON WA4 4AD,CHESHIRE,ENGLAND
[3] INST MOLEC SCI,OKAZAKI,AICHI 444,JAPAN
[4] UNIV EDINBURGH,DEPT CHEM,EDINBURGH EH9 3JJ,MIDLOTHIAN,SCOTLAND
[5] UNIV MANCHESTER,SCHUSTER LAB,DEPT PHYS,MANCHESTER M13 9PL,LANCS,ENGLAND
[6] UNIV ICELAND,INST SCI,IS-107 REYKJAVIK,ICELAND