... edu.tw; Fax: +886-2-27884179; Tel: +886-2-27898641 b Institute of Chemistry, Academia Sinica ... 2 Compared with metallic materials, organic dyes are indispensable due to their advantages of environmental friendliness ... J = 8.8 Hz), 4.42 (d, 2H, J = 3.6 Hz), 4.35 (d, 2H, J = 3.6 Hz ...