a
Department of Chemistry and Biochemistry, Concordia University, Montreal, Canada H4B 1R6
E-mail: john.oh@concordia.ca
b
PPG Industries Korea, Cheonan 330-912 & Department of Chemical and Biological Engineering, Korea University, Seoul 136-713, Republic of Korea
c
Department of Chemistry, University of Ulsan, Ulsan 680-749, Republic of Korea