128374-11-8Relevant articles and documents
Study of non-covalent interaction between a designed monoporphyrin and fullerenes (C60 and C70) in absence and presence of silver nanoparticles
Mitra, Ratul,Bhattacharya, Sumanta,Bauri, Ajoy K.
, p. 485 - 492,8 (2012)
The present article reports on supramolecular interaction between fullerenes (C60 and C70) and a designed monoporphyrin, e.g., 5,15-di(para-methoxyphenyl)zincporphyrin (1), in absence and presence of silver nanoparticles (AgNp) havin
Design and synthesis of perpendicularly connected metal porphyrin-imide dyads for two-terminal wired single molecular diodes
Handayani, Murni,Gohda, Syun,Tanaka, Daisuke,Ogawa, Takuji
, p. 7655 - 7664 (2014)
Four different porphyrin-imide dyads bearing different central metals (zinc or rhodium) and different substituents on the porphyrin macrocycles (tert-butyl or methoxy) were synthesized for single molecular diode measurements. The molecules were designed to separate the donor component (porphyrin) from the acceptor component (imide) by bonding in a perpendicular arrangement, thus enhancing the rectification properties. UV/Vis absorption spectra and density functional theory calculations showed that the design was successful and that the molecular orbitals of the dyads were the summation of the two components, with minimal interaction between them. The effect of the central metal was found to be significant, with the lowest energy absorption for the zinc dyads being attributed to the mixed state of charge transfer from porphyrin to imide and the Q band, whereas that of the rhodium dyads indicated insignificant charge-transfer character. Molecular diodes: Four types of donor-acceptor molecules based on perpendicularly connected porphyrin and naphthalenediimide having different central metals, zinc(II) and rhodium(III), have been designed and synthesized to create donor-acceptor systems with the desired functionalities for single molecular diodes (see figure). The effects of central metals on molecular orbitals provide strong indications that the Rh porphyrin-imide dyads will show different electronic properties to the Zn molecules.
METHOD FOR PREPARING PORPHYRIN DERIVATE
-
Paragraph 0070; 0074-0095; 0096-0099, (2019/05/22)
The present invention relates to a method for manufacturing porphyrin derivatives, comprising a step of oxidizing porphyrinogen by oxygen bubbling under a metal catalyst to synthesize porphyrin derivatives. Therefore, since the method for manufacturing porphyrin derivatives of the present introduced a method of oxidization using oxygen bubbling under the metal catalyst without using a quinone-based oxidizing agent, it is possible to increase the yield of porphyrin derivatives and have an effect that a refining process is very easy.COPYRIGHT KIPO 2019
An efficient synthesis of porphyrins with different meso substituents that avoids scrambling in aqueous media
Nowak-Krl, Agnieszka,Plamont, Rmi,Canard, Gabriel,Edzang, Judicaelle Andeme,Gryko, Daniel T.,Balaban, Teodorsilviu
, p. 1488 - 1498 (2015/01/30)
We have developed new conditions that afford regioisomerically pure trans-A2B2-, A3B-, and trans-AB2C-porphyrins bearing aryl and arylethynyl substituents. The porphyrins were prepared by the acid-catalyzed condensation of dipyrromethanes with aldehydes followed by oxidation with p-chloranil or 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ). Optimal conditions for the condensation were identified after examining various reaction parameters such as solvent composition, acid concentration, and reaction time. The conditions identified (for aromatic aldehydes: EtOH/H2O 4:1, [DPM] = 4 mM, [aldehyde] = 4 mM, [HCl] = 38 mM, 16 h; for arylethynyl aldehydes: THF/H2O 2:1, [DPM] = 13 mM, [aldehyde] = 13 mM, [HCl] = 150 mM, 3 h) resulted in the formation of porphyrins in yields of 9-38% without detectable scrambling. This synthesis is compatible with diverse functionalities such as ester or nitrile. In total, 20 new trans-A2B2-, A3B-, and trans-AB2C-porphyrins were prepared. The scope and limitations of the two sets of reaction conditions have been explored. The methodological advantage of this approach is its straightforward access to building blocks and the formation of the porphyrin core in higher yields than by any other methodology and by using environmentally benign and nonhazardous chemicals.
