Preparation of Polyetherol-Appended Sulfur Porphyrazines and Investigations of Peripheral Metal Ion Binding in Polar Solvents
2000; American Chemical Society; Volume: 39; Issue: 18 Linguagem: Inglês
10.1021/ic991033m
ISSN1520-510X
AutoresLori A. Ehrlich, Peter J. Skrdla, Wade Jarrell, John W. Sibert, Neal R. Armstrong, S. Scott Saavedra, Anthony G. M. Barrett, Brian M. Hoffman,
Tópico(s)Molecular Sensors and Ion Detection
ResumoWe describe the complete synthesis and characterization of a new family of peripherally functionalized porphyrazines (pz's) with four, three, or two (in a trans conformation) bis[thioethoxy(ethoxy)ethanol] moieties appended at the pyrroles. These "polyetherol" groups serve as weak exocyclic binding sites for a number of metal ions and also provide solubility of the pz's in low molecular-weight alcohols and water. Electronic spectra of the modified porphyrazines exhibit distinct changes in the visible region (both absorbance and fluorescence) in response to treatment with Ag+, Pb2+, Cd2+, Cs+, and Ni2+ in solution. Such properties make these compounds intriguing candidates for incorporation into the transducer layers in optically based chemical sensors.
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