[1] HOKKAIDO UNIV,FAC SCI,DEPT CHEM,SAPPORO,HOKKAIDO 060,JAPAN
[2] HOKKAIDO UNIV,FAC SCI,HIGH RESOLUT NMR LAB,SAPPORO,HOKKAIDO 060,JAPAN
[3] MURORAN INST TECHNOL,MURORAN,HOKKAIDO 050,JAPAN
[4] TOKAI UNIV,FAC SCI,DEPT CHEM,HIRATSUKA,KANAGAWA 25912,JAPAN