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- W96601162 abstract "In this Doctorate Thesis project, a small library of four structurally related melamine-bridge bis(porphyrin-ZnII) receptors, was synthesized The coordination properties of these porphyrin derivatives has been investigated by UV-vis spectroscopy for a series of aliphatic diamines of general formula H2N (CH2)n NH2 (n = 4-8). A marked colour variation occours due to a favourable host-guest ditopic interaction. The binding constants, higher than 10e7 M-1, make these receptors excellent candidates for the development of sensor devices for continuous flow analyses, in which the porphyrin derivatives are covalently supported onto appropriate solid materials.These dimeric metalloporphyrin hosts (molecular tweezers), have also been successfully exploited as chirality probes for determination of the absolute configuration (AC) for a wide variety of chiral molecules (diamines, amino esters, amino amides, amino alcohols and secondary monoalcohols) by using circular dichroism spectroscopy, in collaboration with Prof. Nina Berova of Columbia University.The deposition of porphyrin derivatives on different matrices was also investigated. Characterizations of substrates were carried out by scanning electron microscopy (SEM), atomic force microscopy (AFM) and scanning tunneling microscopy. These results show promising potential in the synthesis of highly ordered networks of surface-supported functional materials for sensing and solar energy applications." @default.
- W96601162 created "2016-06-24" @default.
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- W96601162 date "2011-01-31" @default.
- W96601162 modified "2023-09-24" @default.
- W96601162 title "Porphyrin Derivatives as Optical Molecular Sensors" @default.
- W96601162 hasPublicationYear "2011" @default.
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