Diiminic Schiff Bases: An Intriguing Class of Compounds for a Copper-Nanoparticle-Induced Fluorescence Study

被引：27
作者：
Ganguly, Mainak [1 ]
Pal, Anjali [2 ]
Negishi, Yuichi [3 ]
Pal, Tarasankar [1 ]
机构：
[1] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India
[2] Indian Inst Technol, Dept Civil Engn, Kharagpur 721302, W Bengal, India
[3] Tokyo Univ Sci, Dept Appl Chem, Tokyo 1628601, Japan
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2012年 / 18卷 / 49期
关键词：
copper; diimines; fluorescence; nanoparticles; Schiff bases; METAL-ENHANCED FLUORESCENCE; SILVER; COMPLEXES; DECAY; SIZE; OXIDATION; MOLECULE; BEHAVIOR; GROWTH;
D O I：
10.1002/chem.201201242
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The condensation products of salicylaldehyde and different diamines constitute an important class of diiminic Schiff bases (DSBs). This class of compounds has been rediscovered as reducing as well as capping agents under UV irradiation. UV irradiation of alkaline DSB solutions in the presence of water-soluble copper salts has been employed to produce copper nanoparticles (CuNPs). Intriguing CuNP-stimulated fluorescence behavior of the solution has been observed. Depending upon the nature of the spacer in between two iminic bonds, fluorescence enhancement or quenching is observed. Such surprising fluorescence contrast has been ascribed to far-field radiation and lossy surface waves.
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页码：15845 / 15855
页数：11
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