853568-53-3Relevant academic research and scientific papers
A series of highly stable porphyrinic metal-organic frameworks based on iron-oxo chain clusters: design, synthesis and biomimetic catalysis
Liu, Gang,Cui, Hao,Wang, Sujuan,Zhang, Li,Su, Cheng-Yong
, p. 8376 - 8382 (2020)
Iron-based porphyrinic metal-organic frameworks (PMOFs) are desirable for biomimetic applications, due to the low toxicity and high abundance of Fe as well as the rich biomimetic functions of metalloporphyrins. Besides, the uniform dispersion of porphyrin centers in PMOFs can effectively protect them from self-dimerization. Nevertheless, it remains a big challenge to synthesize iron-based PMOFs. In this study, a series of Fe-oxo chain-based PMOFs incorporating different metals in porphyrinic centers (namely M-PMOF-3(Fe), M = Fe, Co, Ni, Cu) are synthesized directly from the reaction of metalloporphyrin and iron salts with an improved modulating strategy using a pair of monocarboxylic acids and water as the three-component modulator. The prepared materials of M-PMOF-3(Fe) possess high stability to resist a broad pH range (0-11) and even 2 M HCl in aqueous solutions for 2 days, and their frameworks can be maintained up to 350 °C. Catalytic tests show that M-PMOF-3(Fe) are effective in the aerobic oxidation of C-H bonds using oxygen from the air as the oxidant.
Metallization-Prompted Robust Porphyrin-Based Hydrogen-Bonded Organic Frameworks for Photocatalytic CO2 Reduction
Alexandrov, Eugeny V.,Fang, Zhi-Bin,Huang, Qian-Qian,Li, Yu-Lin,Liu, Tian-Fu,Proserpio, Davide M.,Qin, Wei-Kang,Si, Duan-Hui,Yin, Qi,Zhang, An-An,Zhang, Yuan
supporting information, (2021/12/24)
Under topological guidance, the self-assembly process based on a tetratopic porphyrin synthon results in a hydrogen-bonded organic framework (HOF) with the predicted square layers topology (sql) but unsatisfied stability. Strikingly, simply introducing a transition metal in the porphyrin center does not change the network topology but drastically causes noticeable change on noncovalent interaction, orbital overlap, and molecular geometry, therefore ultimately giving rise to a series of metalloporphyrinic HOFs with high surface area, and excellent stability (intact after being soaked in boiling water, concentrated HCl, and heated to 270 °C). On integrating both photosensitizers and catalytic sites into robust backbones, this series of HOFs can effectively catalyze the photoreduction of CO2 to CO, and their catalytic performances greatly depend on the chelated metal species in the porphyrin centers. This work enriches the library of stable functional HOFs and expands their applications in photocatalytic CO2 reduction.
Ultrasonic assisted fabrication of dual function surface on PET and preparation of single component ink to attain efficient self-cleaning function via digital printing
Manivannan, Ramalingam,Ryu, Jiwon,Son, Young-A
, (2020/11/12)
The self-cleaning effects of polyethylene terephthalate fabric (PET) through the photocatalytic effects of TiO2 (T), porphyrin (P) and silane (S) have been explored ultrasonically using bath type (WUC-D22H, Daihan Scientific, Korea). The ultras
Study of scrambling in porphyrin forming reactions: Synthesis, structure, photophysical, electrochemical and antimicrobial studies
Kooriyaden, Fasalu Rahman,Sujatha, Subramaniam,Arunkumar, Chellaiah
, p. 85 - 94 (2017/03/27)
Three classes of scrambled porphyrins (Class 1–3) were synthesized by MacDonald type 2 + 2 condensation reactions of electron deficient dipyrromethanes with aldehyde and its complementary reactions in presence of mild acid catalysts. Overall, BF3/su
Systematic Engineering of Single Substitution in Zirconium Metal-Organic Frameworks toward High-Performance Catalysis
Huang, Ning,Yuan, Shuai,Drake, Hannah,Yang, Xinyu,Pang, Jiandong,Qin, Junsheng,Li, Jialuo,Zhang, Yingmu,Wang, Qi,Jiang, Donglin,Zhou, Hong-Cai
supporting information, p. 18590 - 18597 (2017/12/15)
Zirconium-based metal-organic frameworks (Zr-MOFs) exhibit great structural tunability and outstanding chemical stability, rendering them promising candidates for a wide range of practical applications. In this work, we synthesized a series of isostructural PCN-224 analogues functionalized by ethyl, bromo, chloro, and fluoro groups on the porphyrin unit, which allowed us to explicitly study the effects of electron-donating and electron-withdrawing substituents on catalytic performance in MOFs. Owing to the different electronic properties of ethyl, bromo, chloro, and fluoro substitutes, the molecular-level control over the chemical environment surrounding a catalytic center could be readily achieved in our MOFs. To investigate the effects of these substitutes on catalytic activity and selectivity, the oxidation of 3-methylpentane to corresponding alcohols and ketones was utilized as a model reaction. Within these five analogues of PCN-224, an extremely high turnover number of 7680 and turnover frequency of 10 240 h-1 was achieved by simply altering the substitutes on porphyrin rings. Moreover, a remarkable 99% selectivity of the tertiary alcohol over the five other possible by-products are realized. We demonstrate that this strategy can be used to efficiently screen a suitable peripheral environment around catalytic cores in MOFs for catalysis.
Microwave synthesis, basic spectral and biological evaluation of some copper (II) mesoporphyrinic complexes
Boscencu, Rica,Ilie, Mihaela,Socoteanu, Radu,Oliveira, Anabela Sousa,Constantin, Carolina,Neagu, Monica,Manda, Gina,Ferreira, Luis Filipe Vieira
experimental part, p. 3731 - 3743 (2010/09/03)
Cu(II) complexes with asymmetrical and symmetrical porphyrinic ligands were synthesized with superior yields using microwave irradiation. The paper presents the synthesis of 5-(3-hydroxyphenyl)-10,15,20-tris-(4- carboxymethylphenyl)-21,23-Cu(II)-porphine in comparison to its symmetrical complex 5,10,15,20-meso-tetrakis-(4-carboxy-methylphenyl)-21,23-Cu(II) porphine. The two compounds were characterized by FT-IR, UV-Vis and EPR spectroscopy, which fully confirmed the structures. The spectral molecular absorption properties of the porphyrinic complexes were studied in organic solvents (methanol, ethanol, iso-propanol, dimethyl sulfoxide, dimethylformamide and methylene chloride), and the influence of the solvent polarity on the absorbance maxima is described. In order to establish their future potential in biomedical applications preliminary toxicological studies consisting of viability and proliferation of standard tumor cell lines (MCF7 and B16) testing was performed. The obtained results indicate a low toxicity for both compounds and further recommends them for testing in light activation protocols.
Change in supramolecular networks through in situ esterification of porphyrins
Chen, Wentong,Fukuzumi, Shunichi
, p. 5494 - 5505 (2010/06/15)
A series of porphyrins, M[TCPP-Et4] [M = Zn (1), Cu (2), and Ni (3) Et = CH2CH3; TCPP = meso-tetra(4-carboxyphenyl) porphyrin], M[TCPP-Me4] [M = Zn (4), Cu (S), and Co (6); Me = CH 3], and two nonmeta
