Author
R. P. Linstead
Bio: R. P. Linstead is an academic researcher. The author has an hindex of 1, co-authored 1 publications receiving 24 citations.
Papers
More filters
24 citations
Cited by
More filters
TL;DR: This paper presents a Discussion of the Synthesis and Characterization of seco-Porphyrazines and its Applications in Spectroscopic and Redoxperties and Conclusions of Conclusions.
Abstract: 7.1. Synthesis 306 7.2. Spectroscopic and Redox Properties 307 7.2.1. Optical Spectroscopy 307 7.2.2. Redox Properties 310 7.2.3. Other Characterization Methods 312 8. seco-Porphyrazines 312 8.1. Synthesis 312 8.2. Spectroscopic and Redox Properties 312 8.2.1. Optical Spectroscopy 312 8.2.2. Redox Properties 313 8.2.3. Other Characterization Methods 313 9. Conclusions 313 10. Abbreviations 314 11. Acknowledgments 314 12. References 314
383 citations
01 Jan 1990
TL;DR: In this paper, the synthesis of porphyrins and phthalocyanines using macrocycles has been described, and the different ways to use the macrocycles for the mentioned properties.
Abstract: Phthalocyanines and related complexes are important compounds due to their special electrical and optical properties. This article describes, after a more preparative part on the synthesis of porphyrins and phthalocyanines, the different ways to use the macrocycles for the mentioned properties.
152 citations
TL;DR: In this article, a microreview of the approaches reported by other research groups as well as ourselves that allow the predominant or exclusive formation of the required compounds is presented, and the selective preparation of differently substituted or intrinsically unsymmetrical Pc-related systems and Pc homologues is also discussed.
113 citations
TL;DR: In this article, a series of porphyrins with fused phenanthrene subunits have been synthesized, and they have been used to obtain insights into the factors that influence the electronic spectra of conjugated porphrin systems.
Abstract: To obtain insights into the factors that influence the electronic spectra of conjugated porphyrin systems, a series of porphyrins with fused phenanthrene subunits have been synthesized. 9-Nitrophenanthrene reacted with esters of isocyanoacetic acid in the presence of DBU in THF to give a series of phenanthro[9,10-c]pyrroles 14 in good to excellent yields, and subsequent acid-catalyzed condensation with various (acetoxymethyl)pyrroles 18 gave six examples of dipyrrylmethanes 17 that incorporate a fused phenanthrene ring. Cleavage of the benzyl esters from 17a by hydrogenolysis over 10% Pd/C gave the corresponding dicarboxylic acid 24 and this condensed with diformyldipyrrylmethanes 22 under modified MacDonald “2 + 2” condensation conditions to afford the monophenanthroporphyrins 19 and 20. Dipyrrylmethanes 17d and 17f with mixed benzyl and tert-butyl ester moieties were converted into the related formyl dipyrrylmethanecarboxylic acids 29, and subsequent head-to-tail self-condensation in the presence of p-t...
63 citations
TL;DR: The photophysical properties of aluminium(III) and zinc(II) sulphonated naphthalocyanines have been compared with those of the corresponding metallophtholic compounds, leading to the conclusion that the former class of compounds may be useful as sensitizers in certain applications as discussed by the authors.
56 citations