| 主权项 |
1. A fluorescent dye comprising a heterorotaxane having the structure: where X, Y and Z are fluorophoric groups; N+ is a quarternary nitrogen cation; n is selected from 6, 7 and 8; R1, R2, R3 and R4 are selected independently from the group consisting of H, alkyl groups, alkenyl groups, alkynyl groups, aryl groups, OH, NH2, SH, F, Cl, Br, I, PR′2, CHO, COOR′, COOM, CH2OR′, CH2OM, OR′, NHCOR′, CONHR′, CONHM, CONR′2, N3, NO2, B(OR′)2, B(OM)2, CN, NR′3′, PR′3′, POR′2, and OM, where R′ is selected independently from the group consisting of H, alkyl groups, alkenyl groups, alkynyl groups, and aryl groups and M is selected independently from the group consisting of Li, Na, K, Rb, and Cs; and C− is an organic or inorganic negatively charged ion. |
