[1] Institute of Applied Chemistry,
[2] National Chiao Tung University,undefined
[3] Hsin Chu,undefined
[4] Taiwan; Department of Chemistry,undefined
[5] Anhui University,undefined
[6] Anhui,undefined
[7] 230039,undefined
[8] China e-mail: changfc@cc.nctu.edu.tw,undefined
[9] Tel.: +886-5712121-56502,undefined
[10] Fax: +886-3-5723764,undefined