摘要
The aggregation behavior of a cationic fluorescence probe 10-（4,7,10,13,16-pentaoxa- 1-azacyclooctadecylmethyl）anthracen-9-ylmethyl dodecanoate （1） was observed and studied by a fluorescence methodology in acidic and neutral conditions. By using the Py scale, differences between simple aggregates and micelles have been discussed. The stability of simple aggregates was discussed in terms of hydrophobic interaction and electrostatic repulsion. The absence of excimer emission of the anthrancene moiety of probe 1 in neutral condition was attributed to the photoinduced electron transfer mechanism instead of photodimerization.
The aggregation behavior of a cationic fluorescence probe 10-（4,7,10,13,16-pentaoxa- 1-azacyclooctadecylmethyl）anthracen-9-ylmethyl dodecanoate （1） was observed and studied by a fluorescence methodology in acidic and neutral conditions. By using the Py scale, differences between simple aggregates and micelles have been discussed. The stability of simple aggregates was discussed in terms of hydrophobic interaction and electrostatic repulsion. The absence of excimer emission of the anthrancene moiety of probe 1 in neutral condition was attributed to the photoinduced electron transfer mechanism instead of photodimerization.
基金
Project supported by the National Natural Science Foundation of China （No. 20272078） and Shanghai Municipal Science and Technology Commission （No. 03JC14083）.
