51094-17-8Relevant articles and documents
Porphyrin-based bola-amphiphiles as structure-directing agents for the synthesis of mesostructured silica
Behrens, Peter,Glaue, Andreas M.
, p. 1405 - 1412 (2002)
Amphiphilic porphyrins with a bola-type arrangement of trimethylammonium headgroups can be used to generate M41S-type silica mesostructures with a lamellar topology and alternating organic-inorganic layers. Within the organic layers, the porphyrin entities are aggregated as shown by UV-Vis spectroscopy. The use of a bola amphiphile as structure-directing agent extends the possibilities of surfactant-controlled assembly of inorganic structures. In addition, the direct functionalization of the organic part of organic-inorganic hybrid nanostructures is possible due to the combination of the amphiphilic function with that of a chromophore.
Protein-Framed Multi-Porphyrin Micelles for a Hybrid Natural–Artificial Light-Harvesting Nanosystem
Liu, Yannan,Jin, Jiyang,Deng, Hongping,Li, Ke,Zheng, Yongli,Yu, Chunyang,Zhou, Yongfeng
, p. 7952 - 7957 (2016)
A micelle-like hybrid natural–artificial light-harvesting nanosystem was prepared through protein-framed electrostatic self-assembly of phycocyanin and a four-armed porphyrin star polymer. The nanosystem has a special structure of pomegranate-like unimole
Covalent nano-clip and nano-box compounds based on free base porphyrins
Scamporrino, Emilio,Mineo, Placido,Vitalini, Daniele
, p. 3705 - 3713 (2011)
Novel nano-clip and nano-box compounds were obtained by reaction between dibromomethane and 5,15-di[p-(9-methoxytriethylenenoxy)phenyl]-10,20-di[p- hydroxyphenyl]porphyrin. The molecular architecture varies from a co-facial (nano-clip) to a four wall-box (nano-box) structure. The products were characterized by 1H NMR and UV-vis spectroscopy and MALDI-TOF mass spectrometric analysis. The UV-vis spectra of the nano-clip showed a modification of the characteristic porphyrin soret and Q bands, with respect to the monomer and cyclic tetramer, as a probable consequence of a hybrid orbital deformation (HOD) phenomenon involving the two porphyrin π rings forced to a closer co-facial spatial arrangement. The spatial distance between the two co-facial porphyrin units, and therefore the molecular cavity size, can be modified inducing an electrostatic repulsion by means of a reversible protonation of the pyrrolic cores. The 1H NMR spectra of the nano-box showed a strong high-field shift of some aromatic and ether protons present in the upper and lower rim of the molecular box.
Preparation and characterization of a novel tetrakis(4-hydroxyphenyl)porphyrin-graphene oxide nanocomposite and application in an optical sensor and determination of mercury ions
Zare-Dorabei, Rouholah,Rahimi, Rahmatollah,Koohi, Asgar,Zargari, Solmaz
, p. 93310 - 93317 (2015)
In this work, for the first time we report a highly specific and sensitive mercury ion (Hg2+) optical sensor (optode). The optode was prepared by recently synthesized nanocomposites, based on 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin (THPP)
A photoactive Porphyrin-based periodic mesoporous organosilica thin film
Li, Yan,Auras, Florian,L?bermann, Florian,D?blinger, Markus,Schuster, J?rg,Peter, Laurence,Trauner, Dirk,Bein, Thomas
, p. 18513 - 18519 (2013)
A novel optoelectroactive system based on an oriented periodic mesoporous organosilica (PMO) film has been developed. A tetra-substituted porphyrin silsesquioxane was designed as a precursor, and the porphyrin macrocycles were covalently incorporated into
A water soluble macromolecular nanobox having porphyrinic walls as a large host for giant guests
Mineo, Placido,Spitaleri, Fabiola,Scamporrino, Emilio
, p. 1428 - 1435 (2013)
Cyclic tetra{5,15-di-[p(ω-methoxypolyethyleneoxy)phenyl]-10,20-[p- oxyphenyl] methylen porphyrin}, cy-[O-(H2-PTPEG2)-O- CH2-]4, a water soluble macromolecule consisting of four porphyrin units [each with two long ω-methoxypolyethyleneoxy (PEG) branches bound on its peripheral positions] linked by means of four methylenoxy bridges, was prepared by an interfacial etherification reaction. Structural and spectroscopic characterization of cy-[O-(H2-PTPEG2)-O- CH2-]4 and of its cobalt-derivative {cy-[O-(Co-PTPEG 2)-O-CH2-]4} was performed by means of MALDI-TOF mass spectrometry, NMR, UV-vis, and circular dichroism spectroscopy. The data obtained from the cy-[O-(Co-PTPEG2)-O-CH2-] 4/Gramicidin-S mixture showed that some evident spectral changes were compatible with the formation of a supramolecular structure between the porphyrinic nanobox and the Gramicidin S (a polypeptide having a relevant pharmacological importance). These preliminary data highlight how cy-[O-(H 2-PTPEG2)-O-CH2-]4 and/or its metalled derivatives, for their both chemical composition and structural arrangement, have promising properties for applications as a drug carrier in aqueous media.
Photooxygenation catalysis with a polyol-decorated disc-shaped porphyrin sensitizer: Shell-recognition effects
Griesbeck, Axel G.,Schaefer, Mathias,Uhliga, Johannes
, p. 2104 - 2108 (2008)
Polar meso-tetraarylporphyrins 2-4 were synthesized from tetrakis-4-hydroxyphenylporphyrin 1 as the central building block by consecutive base-induced reactions with glycidol. The decorating units form a polar hydrogen-bonded shell around the sensitizer c
Colorimetric and fluorescent bimodal ratiometric probes for pH sensing of living cells
Liu, Yuan-Yuan,Wu, Ming,Zhu, Li-Na,Feng, Xi-Zeng,Kong, De-Ming
, p. 1304 - 1310 (2015)
pH measurement is widely used in many fields. Ratiometric pH sensing is an important way to improve the detection accuracy. Herein, five water-soluble cationic porphyrin derivatives were synthesized and their optical property changes with pH value were in
Novel porphyrin-phthalocyanine heterodimers and heteropentamers: Synthesis, characterization and application in organic solar cells
Zhang, Tianhui,Liu, Min,Zeng, Qingdao,Wu, Zhijiao,Piao, Lingyu,Zhao, Suling
, p. 13259 - 13264 (2013)
Two novel types of covalently ether-linked porphyrin-phthalocyanine (Por-Pc), heterodimer and heteropentamer, connected through the meso phenyl group of the porphyrin have been synthesized for the first time. The Por-Pc heterodimer and heteropentamer have more delocalized π-electrons and therefore their conjugated degree is higher. In addition, these compounds possess better solubility and a wider light absorption than typical single porphyrins and phthalocyanines. Solar cell devices based on as-synthesized porphyrin-phthalocyanine heterodimers and heteropentamers as donor materials and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) as the acceptor material are prepared and show a noticeably better performance. The suitable ZnPor-(O-ZnPc)4:PCBM weight ratio for photovoltaic devices is 4:1 and the highest photovoltaic properties are achieved based on ZnPor-(O-ZnPc) 4:PCBM (4:1) annealed at 140°C in a vacuum for 20 min. The highest PCE is 2.08.
Porphyrin-Stabilized Transition Metal Nanoparticles and Their Applications in the Reduction of 4-Nitrophenol and the Generation of Hydroxyl Radicals
Yan, Jiaying,Liu, Genjiang,Li, Ning,Zhang, Nuonuo,Liu, Xiang
, p. 2806 - 2810 (2019)
The synthesis of robust transition metal nanoparticles (TMNPs) are still intensively investigated because of multiple up-to date applications in catalysis, solar cells, nonlinear optics, biological labeling, nanoelectronics, medicine and energy storage de
Application of EPR to porphyrin-protein agents for photodynamic therapy
Sannikova, Natalya E.,Timofeev, Ivan O.,Chubarov, Alexey S.,Lebedeva, Natalya Sh.,Semeikin, Aleksandr S.,Kirilyuk, Igor A.,Tsentalovich, Yuri P.,Fedin, Matvey V.,Bagryanskaya, Elena G.,Krumkacheva, Olesya A.
, (2020)
Recently, a new type of spin labels based on photoexcited triplet molecules was proposed for nanometer scale distance measurements by pulsed dipolar electron paramagnetic resonance (PD EPR). However, such molecules are also actively used within biological
One-pot, facile synthesis and fast separation of a UiO-66 composite by a metalloporphyrin using nanomagnetic materials for oxidation of olefins and allylic alcohols
Abbasi, Alireza,Masteri-Farahani, Majid,Rayati, Saeed,Zamani, Samira
, p. 654 - 662 (2022/01/22)
One-pot facile synthesis of a new composite based on the incorporation of a metalloporphyrin within the UiO-66 metal-organic framework is reported. To enhance the catalytic activity of UiO-66, pore modification with (CoTHPP(OAC) = meso-tetrakis(4-hydroxyp
Terpyridine-containing porphyrin and coordination assembly with fullerene-based pyridine for enhanced electrocatalytic oxygen evolution and photocurrent response
Wu, Zhen-Yi,Huang, Li-Jing,Zhong, Rui
, (2020/12/13)
A novel terpyridine-modified porphyrin, ZnP-Pr-tpy, has been synthesized and characterized successfully using elemental analysis, mass spectrometry (MS), nuclear magnetic resonance spectroscopy (NMR), infrared spectroscopy (IR) and ultraviolet/visible spe
