Academic literature on the topic 'Porphyrins'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Porphyrins.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Porphyrins"

1

Mohd Radzuan, Nuur Haziqah, Zaitun Ghazali, Nurul Izzaty Hassan, Mohd Bakri Bakar, Siti Aishah Hasbullah, and Muntaz Abu Bakar. "Synthesis and Characterization of 5,15 A2-Type Porphyrin, Metalloporphyrin and Preliminary Study on Carbon Dioxide Adsorption." Sains Malaysiana 54, no. 6 (2025): 1535–49. https://doi.org/10.17576/jsm-2025-5406-09.

Full text
Abstract:
Porphyrins are among the most extensively studied compounds in chemistry due to their remarkable stability, optical, and photophysical properties. In recent years, advancements in their diverse applications have driven the exploration of porphyrins with different functional groups, allowing for more specific applications. Nowadays, a greater focus is being placed on the development of materials for capturing and converting carbon dioxide (CO2) into value-added products. Despite their promising features, the application of porphyrins in carbon dioxide adsorption has been hindered by their initi
APA, Harvard, Vancouver, ISO, and other styles
2

Sooambar, Chloé, Vincent Troiani, Hongjin Qiu, et al. "Chirality and spatially pre-organized multi-porphyrinoids." Journal of Porphyrins and Phthalocyanines 22, no. 04 (2018): 291–302. http://dx.doi.org/10.1142/s1088424618500396.

Full text
Abstract:
We report herein that chiral and enantiopure compounds such nucleosides and peptides can pre-organize multi-porphyrinic systems and influence their properties. The first example given concerns star-shaped mutli-porphyrins with chiral and enantiopure nucleosidic linkers. If the configuration is indeed a star-shaped nanomolecule, it appears that the induced conformation is nothing as expected. The four peripheral Zn(II) porphyrins collapse over the free-base central one, inducing totally different photo-physical properties. Despite a minor expected light energy harvesting behavior, the principal
APA, Harvard, Vancouver, ISO, and other styles
3

Wenceslau, Adriana C., Guilherme L. Q. C. Ferreira, Noboru Hioka, and Wilker Caetano. "Spectroscopic studies of pyridil and methoxyphenyl porphyrins in homogeneous and Pluronic®-based nanostructured systems." Journal of Porphyrins and Phthalocyanines 19, no. 11 (2015): 1168–76. http://dx.doi.org/10.1142/s1088424615500996.

Full text
Abstract:
Spectroscopic properties of Porphyrins TPyP (tetra(4-pyridil)porphyrin), TMPP (tetrakis(4-methoxypheny) porphyrin) and its zinc metaled derivatives porphyrins Zn-TPyP and Zn-TMPP respectively, were studied in homogeneous and micro heterogeneous systems, comprising nanostructured Pluronic® copolymeric micellar systems, as a promising drug delivery systems for the porphyrins investigated. Physico-chemical properties such as, hydrophobicity degree, self- aggregation in solvents of different polarities and water/ethanol mixtures (monofasic binary), as well as kinetics profile and isotherm binding,
APA, Harvard, Vancouver, ISO, and other styles
4

Puzikova, А. I., Е. А. Litvin, D. А. Kildyushkin, and А. Е. Druy. "Application of high-performance liquid chromatography in porphyrias diagnostics." Pediatric Hematology/Oncology and Immunopathology 20, no. 3 (2021): 140–44. http://dx.doi.org/10.24287/1726-1708-2021-20-3-140-144.

Full text
Abstract:
Porphyrias are distinguished by the stage of heme synthesis at which a failure occurs, leading to the accumulation of intermediate products – porphyrins. Due to the low specificity of clinical manifestations of porphyria and the latent course of the disease, their timely diagnosis is difficult. This article substantiates the effectiveness of high-performance liquid chromatography method in the determination of porphyrins. The method is suitable for porphyrin determination in urine, blood and feces of patients. Examples of its work are shown.
APA, Harvard, Vancouver, ISO, and other styles
5

Richeter, Sébastien, Christophe Jeandon, Christian Sauber, Jean-Paul Gisselbrecht, Romain Ruppert, and Henry J. Callot. "Preparation, mass spectrometry and electrochemical studies of metal connected porphyrin oligomers." Journal of Porphyrins and Phthalocyanines 06, no. 06 (2002): 423–30. http://dx.doi.org/10.1142/s108842460200052x.

Full text
Abstract:
Oligomers built from metal ions and porphyrins bearing enaminoketones at the ring periphery were prepared. These dimers or trimers, where all porphyrinic rings are coplanar, show large interactions in the ground state between the individual porphyrin cores, as shown by their optical properties and electrochemical studies. In particular, a spectacular decrease of the HOMO-LUMO gap (with values as low as 1.32 eV) was observed for monomeric porphyrins metalated on the external sites. Along with standard analytical methods, APPI (Atmospheric Pressure PhotoIonization) mass spectrometry was found to
APA, Harvard, Vancouver, ISO, and other styles
6

Kaczynski, Jerzy, Göran Hansson, and Sven Wallerstedt. "Increased Porphyrins in Primary Liver Cancer Mainly Reflect a Parallel Liver Disease." Gastroenterology Research and Practice 2009 (2009): 1–6. http://dx.doi.org/10.1155/2009/402394.

Full text
Abstract:
Hepatic porphyries have been associated with an increased risk of primary liver cancer (PLC), which on the other hand may cause an increased porphyrin production. To evaluate the role of an underlying liver disorder we analyzed porphyrins in patients with hepatocellular carcinoma (HCC)(n=65), cholangiocellular carcinoma(n=3), or suspected PLC, which turned out to be metastases(n=18)or a benign disorder(n=11). None of the patients had a family history of porphyry or clinical signs of porphyry. Increased aminolevulinic acid or porphyrin values were common not only in patients with PLC (43%) but
APA, Harvard, Vancouver, ISO, and other styles
7

Hindmarsh, J. Thomas, Linda Oliveras, and Donald C. Greenway. "Plasma Porphyrins in the Porphyrias." Clinical Chemistry 45, no. 7 (1999): 1070–76. http://dx.doi.org/10.1093/clinchem/45.7.1070.

Full text
Abstract:
Abstract Background: As an aid in the diagnosis and management of porphyria we have developed a method to fractionate and quantify plasma porphyrins and have evaluated its use in various porphyrias. Methods: We used HPLC with fluorometric detection to measure plasma concentrations of uroporphyrin I and III, heptacarboxyl III, hexacarboxyl III, pentacarboxyl III, and coproporphyrin I and III. We studied 245 healthy subjects, 32 patients with classical porphyria cutanea tarda (PCT), 12 patients with PCT of renal failure, 13 patients with renal failure, 8 patients with pseudoporphyria of renal fa
APA, Harvard, Vancouver, ISO, and other styles
8

Thunell, S. "Porphyrins, porphyrin metabolism and porphyrias. I. Update." Scandinavian Journal of Clinical and Laboratory Investigation 60, no. 7 (2000): 509–40. http://dx.doi.org/10.1080/003655100448310.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Vega Mayoral, Victor, Alicia Götz, Saül Garcia Orrit, Klaus Müllen, Akimitsu Narita, and Juan Ramon Cabanillas Gonzalez. "Photoexcited States Dynamics on Cu(II) Porphyrines-Nanographenes Dyads." ECS Meeting Abstracts MA2024-01, no. 14 (2024): 1141. http://dx.doi.org/10.1149/ma2024-01141141mtgabs.

Full text
Abstract:
Donor-acceptor systems have garnered significant attention in the fields of semiconducting materials and light harvesting.1 Particularly intriguing are porphyrin diads, wherein porphyrins are covalently bonded to nanographenes, forming a dyad with an expected electron transfer from the porphyrin to the nanographene. In our study, we leverage the excellent charge transport properties of Hexabenzocoronene (HBC) in combination with the superior light harvesting capabilities of Cu(II) porphyrins. The steady-state absorption spectra of the dyads exhibit a linear combination of HBC and porphyrin spe
APA, Harvard, Vancouver, ISO, and other styles
10

Uemori, Yoshio, Masato Sakurai, Atsuko Osada, Hiroki Munakata, Hiroyasu Imai, and Shigeo Nakagawa. "Synthesis and properties of water-soluble porphyrins bearing multidentate ligands." Journal of Porphyrins and Phthalocyanines 08, no. 08 (2004): 1047–54. http://dx.doi.org/10.1142/s1088424604000416.

Full text
Abstract:
Water-soluble porphyrins bearing multidentate ligands were prepared by covalent binding of nitrilotriacetic acid to 5,10,15,20-tetrakis(4-aminophenyl)porphyrin or three atropisomers of 5,10,15,20-tetrakis(2-aminophenyl)porphyrin. The acid-base properties and monomer-dimer behavior of the porphyrins were affected by the positions of the multidentate ligands with respect to the porphyrin plane. Among the porphyrins, the porphyrin bearing multidentate ligands at the para position of the phenyl groups dimerized in an aqueous solution. The association constants of the porphyrins with various aromat
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Porphyrins"

1

Lefley, Colin Richard. "Raman spectroscopic studies of porphyrins and porphyrin-protein complexes." Thesis, University of York, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239782.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Krivokapic, Alexander. "Porphyrins and expanded porphyrins for optical limiting." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270203.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Mori, Goro. "Exploration of Porphyrins and Expanded Porphyrins with Novel Properties." 京都大学 (Kyoto University), 2008. http://hdl.handle.net/2433/124357.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Sek, Sau Yin. "The synthesis of haematoporphyrin derivative III and other novel porphyrins /." Title page, table of contents and abstract only, 1990. http://web4.library.adelaide.edu.au/theses/09PH/09phs4622.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Meshkov, Ivan. "Control of molecular movement based on porphyrins." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAF006/document.

Full text
Abstract:
Les travaux décrits dans ce manuscrit s’intéressent au contrôle du mouvement moléculaire. Après une introduction dédiée à l’état de l’art des machines moléculaires, le premier chapitre s’intéresse à la conception de tourniquets moléculaires à base de complexes porphyriniques de P(V). Le mouvement moléculaire a pu être contrôlé de manière réversible soit par l’utilisation des sites de coordination présents à la périphérie du système soit par des variations de pH. Le deuxième chapitre s’intéresse aux propriétés photophysiques des porphyrines de P(V) obtenues et plus particulièrement à leur capac
APA, Harvard, Vancouver, ISO, and other styles
6

Burgess, Robert Marshall. "Ambient gas effects on thin film porphyrins and on Al/Porphyrin/Ag electroluminescent and electrochemical devices /." Thesis, Connect to this title online; UW restricted, 1986. http://hdl.handle.net/1773/11579.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Davis, Nicola Kathleen Sybille. "Anthracene-fused porphyrins." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:86b0efea-d33a-42e2-9304-82d94e8f895a.

Full text
Abstract:
This thesis describes the synthesis of a novel family of porphyrins fused to anthracenes, together with investigations into their optical and electrochemical properties, as well as exploring their potential for application in dye-sensitised solar cells. Chapter 1 gives an overview of the structure-property relationships of large planar pi- systems for organic electronic applications. Porphyrins are introduced as suitable building blocks for such systems, and approaches for extending the pi-conjugation of these macrocycles are presented. A literature review of porphyrins fused to aromatic units
APA, Harvard, Vancouver, ISO, and other styles
8

Locos, Oliver Brett. "Synthesis and investigations of novel alkenylporphyrins and bis(porphyrins)." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16409/1/Oliver_Locos_Thesis.pdf.

Full text
Abstract:
Twelve porphyrin dyads linked by an ethene bridge were synthesised as model systems for conjugated polymers. The extent of interporphyrin interaction was investigated for meso-meso and meso-β linked homo- and heterobimetallo-porphyrin dyads. To complement these dyads, model monomers with alkenyl substituents were also studied. Once the synthesis of these compounds was achieved, the extent of interaction was studied using UV-visible and fluorescence spectroscopy and molecular modelling. In order to gain a true indication of the extent of interaction in a dyad, the effect of the bridge a
APA, Harvard, Vancouver, ISO, and other styles
9

Locos, Oliver Brett. "Synthesis and investigations of novel alkenylporphyrins and bis(porphyrins)." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16409/.

Full text
Abstract:
Twelve porphyrin dyads linked by an ethene bridge were synthesised as model systems for conjugated polymers. The extent of interporphyrin interaction was investigated for meso-meso and meso-β linked homo- and heterobimetallo-porphyrin dyads. To complement these dyads, model monomers with alkenyl substituents were also studied. Once the synthesis of these compounds was achieved, the extent of interaction was studied using UV-visible and fluorescence spectroscopy and molecular modelling. In order to gain a true indication of the extent of interaction in a dyad, the effect of the bridge a
APA, Harvard, Vancouver, ISO, and other styles
10

Hames, Tim. "Playing Tetris with porphyrins : the synthesis of porphyrinic materials for self-sssembly studies." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/37990/.

Full text
Abstract:
This thesis focuses on the synthesis of porphyrinic materials for self-assembly studies. It begins with the synthesis of a large number of ‘building block’ molecules, terminated with bromo-, alkyne- and TMS- groups. These molecular building blocks are combined to form porphyrin compounds also terminated with bromo- alkyne- and TMS- groups at carefully selected positions. A series of porphyrin arrays inspired by the computer game Tetris was designed to be synthesised from these porphyrin units. The Tetris compounds are comprised of four square-like tetraphenylporphyrin (TPP) units, linked toget
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Porphyrins"

1

International, Congress on Porphyrins and Porphyrias (2nd 1985 Paris France). Porphyrins and porphyrias: Proceedings of the Second International Congress on Porphyrins and Porphyrias held in Paris (France) 19-22 June, 1985 = Porphyrines et porphyries. Editions INSERM, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

International Congress on Porphyrins and Porphyrias (2nd 1985 Paris, France). Porphyrins and porphyrias =: Porphyrines et porphyries : proceedings of the Second International Congress on Porphyrins and Porphyrias held in Paris (France), 19-22 June, 1985. J. Libbey, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Dobhal, M. P. Porphyrins - Spectral Data of Porphyrin Isomers and Expanded Porphyrins. Edited by V. Gupta, M. D. Lechner, and R. Gupta. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-47224-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Gouterman, Martin, Peter M. Rentzepis, and Karl D. Straub, eds. Porphyrins. American Chemical Society, 1986. http://dx.doi.org/10.1021/bk-1986-0321.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Gupta, R. Porphyrins. Edited by V. Gupta, M. D. Lechner, and R. Gupta. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-642-41556-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Gupta, V., M. D. Lechner, and R. Gupta, eds. Porphyrins. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41561-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Gupta, R. Porphyrins. Edited by V. Gupta, M. D. Lechner, and R. Gupta. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49340-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Dobhal, M. P. Porphyrins. Edited by V. Gupta, M. D. Lechner, and R. Gupta. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-41605-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

A, Radi͡u︡shkina K., and Bogdanovskai͡a︡ V. A, eds. Ėlektrokhimii͡a︡ porfirinov. "Nauka", 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

J, Weghorn Steven, ed. Expanded, contracted & isomeric porphyrins. Pergamon, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Porphyrins"

1

William Louda, J. "Porphyrins." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-39193-9_190-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

William Louda, J. "Porphyrins." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-39312-4_190.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Milgrom, L. R., and F. O’Neill. "Porphyrins." In The Chemistry of Natural Products. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2144-6_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Briggs, Thomas. "Porphyrins." In Oklahoma Notes. Springer New York, 1995. http://dx.doi.org/10.1007/978-1-4612-4200-0_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Briggs, Thomas. "Porphyrins." In Oklahoma Notes. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4684-0294-0_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Briggs, Thomas. "Porphyrins." In Oklahoma Notes. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4684-0437-1_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Loboda, Oleksandr. "Porphyrins." In Carbon Nanostructures. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31845-0_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Ahluwalia, V. K. "Porphyrins." In Biomolecules. CRC Press, 2024. http://dx.doi.org/10.1201/9781003494553-12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Dobhal, M. P. "An Introduction to porphyrins." In Porphyrins - Spectral Data of Porphyrin Isomers and Expanded Porphyrins. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-47224-8_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Gupta, V., and R. Gupta. "An Introduction to porphyrins." In Porphyrins. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-41605-7_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Porphyrins"

1

Agarwala, V. S., and S. Hettiarachchi. "Porphyrins and Phthalocyanines for Corrosion Inhibition." In CORROSION 1990. NACE International, 1990. https://doi.org/10.5006/c1990-90442.

Full text
Abstract:
Abstract The electronic structure and the chemical properties of porphyrin and phthalocyanine molecules suggest that they are capable of strong chemisorption at metallic surfaces. Thus, a number of different porphyrins, phthalocyanines and their metallo- derivatives were synthesized and studied. The corrosion and electrochemical studies showed their excellent potential for corrosion inhibition. The current studies have shown that "tailor-making" the molecules through modification of chemical structure, could transform them into most efficient corrosion inhibitors. The degree of inhibidon impro
APA, Harvard, Vancouver, ISO, and other styles
2

Agarwala, Vinod S., and Frederick R. Longo. "Corrosion and Physical Studies of Porphyrin-Treated Iron Surfaces." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86198.

Full text
Abstract:
Abstract The Chemical and structural characteristics of porphyrins suggest that this class of molecules should offer protection of metallic surfaces by chemisorption. Therefore we have prepared and tested more than twenty-five different porphyrins and several of their metallo-derivatives. Corrosion and electrochemical studies have shown that the inhibition efficiency of a porphyrin improves (a) with its water-soluble nature, (b) with its conversion to a metalloderivative and (c) when applied by vapor deposition at temperatures above 300 C. Best corrosion inhibition (in 1% NaCl) was shown by te
APA, Harvard, Vancouver, ISO, and other styles
3

Kamitani, K., M. Uo, H. Inoue, A. Makishima, T. Suzuki, and K. Horie. "Synthesis and Spectroscopy of TPP Derivative-Doped Silica Gels by Sol-Gel Process." In Spectral Hole-Burning and Related Spectroscopies: Science and Applications. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/shbs.1994.wd56.

Full text
Abstract:
We have reported the incorporation of the photochemical hole-burning (PHB) dyes to the silica gels and the observation of spectral holes [1-3]. The porphyrins are well-known PHB dyes. However, in acidic solutions, many porphyrins change their forms into dication which is inactive in PHB [4]. So we have developed two-step sol-gel processes from the hydrolysis of TMOS with NaOH, and successfully incorporated free-base TPPS, a kind of porphyrin, in the silica gels [5].
APA, Harvard, Vancouver, ISO, and other styles
4

Ahmed, Md Soif, Chinmoy Biswas, Dipanjan Banerjee, et al. "Ultrafast Photoexcited Molecular Dynamics of Metalated Porphyrin – Napthalimide Based Donor-Acceptor Systems." In CLEO: Applications and Technology. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_at.2022.jw3b.4.

Full text
Abstract:
Ultrafast excited state molecular relaxation dynamics of two porphyrin-napthalimide molecular systems in donor–acceptor configuration, have been studied using femtosecond transient absorption measurements upon pumping the Soret bands of the porphyrins with 400 nm excitation.
APA, Harvard, Vancouver, ISO, and other styles
5

Morrow, D. I. J., and R. F. Donnelly. "Novel drug delivery strategies for porphyrins and porphyrin precursors." In 12th World Congress of the International Photodynamic Association, edited by David H. Kessel. SPIE, 2009. http://dx.doi.org/10.1117/12.822673.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Eom, Hyo Soon, Cheon Min Kim, Sae Chae Jeoung, and Dongho Kim. "Ultrafast Vibrational Relaxation and Ligand Photodissociation/Photoassociation Processes of Nickel(II) Porphyrins." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/up.1996.fe.54.

Full text
Abstract:
The nickel(II) porphyrins have been well suited for an ideal system for investigating electronic decay, axial ligand photodissociation and photoassociation dynamics.1Of great significance in governing photophysics of the four- and six-coordinate nickel(II) complexes is the presence of a low-lying metal excited (dz2,dx2−y2) state having ~250 ps lifetme below porphyrin ring (π,π*) states.1 The (d,d) excited state shows characteristic sharply featured absorption difference spectra, compared to the broader featured more diffuse spectra of the ring (π,π*) and metal⇔ring charge transfer excited stat
APA, Harvard, Vancouver, ISO, and other styles
7

Harrison, R. J., G. S. Beddard, J. A. Cowan, and J. K. M. Sanders. "Detection of the inverted region in photo-induced intramolecular electron transfer." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/up.1986.mc8.

Full text
Abstract:
Photo-induced electron transfer causes the rapid quenching of the excited singlet state of a number of capped porphyrins. The porphyrin donates an electron to an acceptor such as a quinone as shown in the following scheme We have observed a marked decrease in the rate of charge recombination at high -ΔG, in the so called “inverted” region, as predicted by both classical1 and quantum theories2 of electron transfer.
APA, Harvard, Vancouver, ISO, and other styles
8

Faraon, Victor, Rodica-Mariana Ion, Simona-Florentina Pop, Raluca Van-Staden, and Jacobus-Frederick Van-Staden. "Porphyrins as molecular nanomaterials." In Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies, edited by Paul Schiopu and George Caruntu. SPIE, 2010. http://dx.doi.org/10.1117/12.882110.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Nasri, Habib. "Porphyrins and Metalloporphyrins : An Overview." In 2020 IEEE International Conference on Design & Test of Integrated Micro & Nano-Systems (DTS). IEEE, 2020. http://dx.doi.org/10.1109/dts48731.2020.9196129.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Tang, Nansheng, Weigie Su, Thomas M. Cooper, et al. "Nonlinear absorption in modified porphyrins." In SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, edited by Christopher M. Lawson. SPIE, 1996. http://dx.doi.org/10.1117/12.253470.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Porphyrins"

1

Day, Nicholas. Polymeric Porphyrins as Solar Photocatalysts. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.2621.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

van Willigen, H. Magnetic resonance studies of photosynthetic reaction centers and porphyrins. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/6551500.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Wang, Hong, and Lei Kerr. Pi-Extended Porphyrins: Functionalization and applications in DSSC. SC0010800-Final. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1417036.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Wang, Chenyi. Spectroscopy, NMR, and Electrochemistry Studies of Protonated Aminophenyl/Pyridyl Porphyrins and Their Application in Hydrogen Evolution. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.2220.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

C. Saulle, Carolina, Alexandre Claus, Letícia De A. Sales, et al. Photoinactivation of Colletotrichum truncatum, Corynespora cassiicola, Sclerotinia sclerotiorum and Rhizoctonia solani in soybean seeds by cationic porphyrins. Peeref, 2023. http://dx.doi.org/10.54985/peeref.2306p7813370.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Detty, Michael R. Structure Optimization of 21,23-Core-Modified Porphyrins Absorbing Long-Wavelength Light as Potential Photosensitizers Against Breast Cancer Cells. Defense Technical Information Center, 2008. http://dx.doi.org/10.21236/ada484873.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

You, Youngiee. Structure Optimization of 21,23-Core-Modified Porphyrins Absorbing Long-Wavelength Light as Potential Photosensitizers Against Breast Cancer Cells. Defense Technical Information Center, 2006. http://dx.doi.org/10.21236/ada455268.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

You, Youngjae. Structure Optimization of 21, 23-Core-Modified Porphyrins Absorbing Long-Wavelength Light as Potential Photosensitizers Against Breast Cancer Cells. Defense Technical Information Center, 2005. http://dx.doi.org/10.21236/ada435286.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Michl, J. Pyridinium-Coupled Porphyrin-Based Molecular Grid Membrane. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada395522.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Braden, Dale. Synthesis and Characterization of a Porphyrin Dyad. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.6852.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!