An efficient multiple-mode molecular logic system for pH, solvent polarity, and Hg(2+) ions

作者：Zhang Dong; Su Jianhua; Ma Xiang; Tian He^*

来源：Tetrahedron, 2008, 64(36): 8515-8521.

DOI：10.1016/j.tet.2008.05.048

• molecular logic gate
• Hg sensor
• pH switch

A novel fluorophore 1,3-bis(1,1,3-trimethyl-1H-benzo[e]indol-2(3H)-ylidene)propan-2-one (L) was synthesized and fully characterized by (1)H NMR, (13)C NMR, HRMS, and X-ray single-crystal structural analysis. Compound L is a pH-controlled Molecular switch due to its protonation. The fluorescence change in protic polar solvents means that this compound also could be used as a protic solvent polarity sensor. Among the considered metal ions, the fluorescence of compound L Could be quenched completed by Hg(2+) ions with a high selectivity. Based on these fluorescence Characters, this fluorescent dye L has promising applications as a multiple-mode molecular logic system.

• 出版日期2008-9-1
• 单位华东理工大学