Arenedicarboximide Building Blocks for Fluorescent Photoinduced Electron Transfer pH Sensors Applicable with Different Media and Communication Wavelengths
摘要:
N-(aminoalkyl)-4-chloronaphthalene-1,8-dicarboximides 1, N-(aminoalkyl)-4-acetamidonaphthalene- 1,8-dicarboximides 3 and N,N'-bis(aminoalkyl)-perylene-3,4:9,10-tetracarboxydiimides 4 show good fluorescent off-on switching in aqueous alcoholic solution with protons as required for fluorescent PET sensor design. The excitation wavelengths lie in the ultraviolet (lambda(max) = 345 and 351 nm) for 1 and 3 and in the blue-green (lambda(max) = 528, 492 and 461 nm) for 4: the emission wavelengths lie in the violet (lambda(max) = 405 nm) for 1, in the blue (lambda(max) = 474 nm) for 3 and in the yellow-orange (lambda(max) = 543 and 583 nm) for 4. Compound 4b shows substantial fluorescence enhancement with protons when immobilized in a poly(vinylchloride) matrix, provided that 2-nitrophenyloctyl ether plasticizer and potassium tetrakis(4-chlorophenyl)borate additive are present to prevent dye crystalization and to facilitate proton diffusion into the membrane, respectively.
Arenedicarboximide Building Blocks for Fluorescent Photoinduced Electron Transfer pH Sensors Applicable with Different Media and Communication Wavelengths
作者:Lynda M. Daffy、A. Prasanna de Silva、H. Q. Nimal Gunaratne、Christian Huber、P. L. Mark Lynch、Tobias Werner、Otto S. Wolfbeis
N-(aminoalkyl)-4-chloronaphthalene-1,8-dicarboximides 1, N-(aminoalkyl)-4-acetamidonaphthalene- 1,8-dicarboximides 3 and N,N'-bis(aminoalkyl)-perylene-3,4:9,10-tetracarboxydiimides 4 show good fluorescent off-on switching in aqueous alcoholic solution with protons as required for fluorescent PET sensor design. The excitation wavelengths lie in the ultraviolet (lambda(max) = 345 and 351 nm) for 1 and 3 and in the blue-green (lambda(max) = 528, 492 and 461 nm) for 4: the emission wavelengths lie in the violet (lambda(max) = 405 nm) for 1, in the blue (lambda(max) = 474 nm) for 3 and in the yellow-orange (lambda(max) = 543 and 583 nm) for 4. Compound 4b shows substantial fluorescence enhancement with protons when immobilized in a poly(vinylchloride) matrix, provided that 2-nitrophenyloctyl ether plasticizer and potassium tetrakis(4-chlorophenyl)borate additive are present to prevent dye crystalization and to facilitate proton diffusion into the membrane, respectively.
Silva, A. Prasanna de; Rice, Terence E., Chemical Communications, 1999, # 2, p. 163 - 164