Results 251 to 260 of about 66,875 (309)
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Nanotechnology, 2012
A new cationic silver N-alkylpyridylporphyrin complex is able to 'sense' nanometric conductive particles with a diameter below 10 nm. The luminescence of the molecule changes its maximum from red to blue when it embraces a conductive (metallic or semiconducting) nanoparticle.
G A M, Safar +5 more
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A new cationic silver N-alkylpyridylporphyrin complex is able to 'sense' nanometric conductive particles with a diameter below 10 nm. The luminescence of the molecule changes its maximum from red to blue when it embraces a conductive (metallic or semiconducting) nanoparticle.
G A M, Safar +5 more
openaire +2 more sources
Accounts of Chemical Research, 2018
In order to fabricate efficient molecular photonic devices, it has been a long-held aspiration for chemists to understand and mimic natural light-harvesting complexes where a rapid and efficient transfer of excitation energy between chlorophyll pigments is observed.
Rahul Dev Mukhopadhyay +3 more
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In order to fabricate efficient molecular photonic devices, it has been a long-held aspiration for chemists to understand and mimic natural light-harvesting complexes where a rapid and efficient transfer of excitation energy between chlorophyll pigments is observed.
Rahul Dev Mukhopadhyay +3 more
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Journal of the American Chemical Society, 2001
The synthesis and characterization of new nanoscale container molecules 7 and 8 are described. They are covalent hybrids of deepened, self-folding cavitands and metalloporphyrins. In receptor 7, the Zn-porphyrin wall is directly built onto the cavitand skeleton.
S D, Starnes, D M, Rudkevich, J, Rebek
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The synthesis and characterization of new nanoscale container molecules 7 and 8 are described. They are covalent hybrids of deepened, self-folding cavitands and metalloporphyrins. In receptor 7, the Zn-porphyrin wall is directly built onto the cavitand skeleton.
S D, Starnes, D M, Rudkevich, J, Rebek
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Chemistry – A European Journal, 2008
AbstractFour tetrathiafulvalene (TTF)‐annulated porphyrins 1–4 were synthesized and characterized. All contain a tetraphenylporphyrin (TPP) core onto which four, two, or one TTF subunits were annulated. Absorption and fluorescence spectroscopic studies together with electrochemical investigations reveal that interactions between the porphyrin system ...
Nielsen, Kent-A. +4 more
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AbstractFour tetrathiafulvalene (TTF)‐annulated porphyrins 1–4 were synthesized and characterized. All contain a tetraphenylporphyrin (TPP) core onto which four, two, or one TTF subunits were annulated. Absorption and fluorescence spectroscopic studies together with electrochemical investigations reveal that interactions between the porphyrin system ...
Nielsen, Kent-A. +4 more
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Self-assembly of porphyrin–azulene–porphyrin and porphyrin–azulene conjugates
Organic & Biomolecular Chemistry, 2009In this paper we report the synthesis and self-assembling behavior of new porphyrin-azulene-porphyrin and porphyrin-azulene conjugates. The porphyrin-azulene-porphyrin conjugate gelates a number of organic solvents, while the porphyrin-azulene conjugates form vesicles in a chloroform-methanol binary mixture.
Ze-Yun, Xiao +3 more
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Schiff Base Porphyrin and Expanded Porphyrin Analogues
ChemInform, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
Wyeth B. Callaway +2 more
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Porphyrins, porphyrin metabolism and porphyrias. I. Update
Scandinavian Journal of Clinical and Laboratory Investigation, 2000The biosynthesis of porphyrins is one of the most conserved parthways known, about the same sequence of reactions taking place in all species. By associating different metals, porphyrins give rise to the "pigments of life": chlorophyll, haem and cobalamin.
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Journal of the American Chemical Society, 1971
H, Dickmann, C K, Chang, T G, Traylor
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H, Dickmann, C K, Chang, T G, Traylor
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