[1] FAC SCI DIJON,F-21000 DIJON,FRANCE
[2] COMMISS COMMUNAUTES EUROPEENNES,BRUXELLES,BELGIUM
[3] CNRS,LISH,F-13003 MARSEILLE,FRANCE
[4] ECOLE NATL SUPER IND CHIM,INST NATL POLYTECH LORRAINE,CNRS,UA 328,DEPT CHIM PHYS REACT,F-54042 NANCY,FRANCE
[5] UNIV NANCY 1,F-54000 NANCY,FRANCE