29162-74-1

Upstream product

• 22112-84-1 tetrakis(4-aminophenyl)porphyrin 
• 109-97-7 pyrrole 
• 57546-55-1 2,5-bis(α-hydroxy-α-phenylmethyl)thiophene 
• 15164-44-0 p-(iodophenyl)carboxaldehyde 
• 171824-88-7 2,5-bis[hydroxy(phenyl)methyl]furan 
• 98-01-1 furfural 
• 802294-64-0 propionic acid 
• 487-68-3 mesytaldehyde 

Relevant academic research and scientific papers

Synthesis of C?C Bonded Two-Dimensional Conjugated Covalent Organic Framework Films by Suzuki Polymerization on a Liquid–Liquid Interface

Synthesis of free-standing two-dimensional (2D) conjugated covalent organic framework (COF) films linked by C?C bonds is highly desirable. Now a very simple and mild strategy has been developed to synthesize them by Suzuki polymerization on a water–toluen

Exploring crystal structure of 5, 10, 15, 20-tetrakis (4-iodophenyl) porphyrin; H2TIPP: Experimental and theoretical investigations

The present work represents chemical preparation, characterization, and crystal structure analysis combined with computational density functional theory; DFT and hirshfeld surface analysis; HSA of 5, 10, 15, 20-tetrakis (4-iodophenyl) porphyrin; H2TIPP. The title compound crystallizes in triclinic crystal system in space group P-1 having half molecule in asymmetric unit cell. Molecular packing seems to be controlled by various molecular interactions and has been put in evident and further addressed by HSA. The geometry obtained displays that the porphyrin core including the pyrrole rings and meso-carbon junction opts a planar geometry. However the phenyl rings containing iodine substituents are twisted from that core plane approximately perpendicular to each other and can be visualized as a slightly distorted propeller. Examining experimental and theoretical geometry confirms strong N_H???N intramolecular hydrogen bonding involving in formation of qausi aromatic six membered rings at opposite ends inside the core, other prominent neighboring interaction exhibits interplay of N-H, H-H, C-H, C-I, and I???I. Furthermore its quite evident those functional substituents at peripheral groups are quite flexible and directional, which has improved their orientation from one dimensional to 2D and 3D supramolecular architecture. This reflects their greater role as porous solids.

Synthesis method of tetra (4-aminophenyl) porphyrin metal complex

The invention discloses a synthesis method of a tetra (4-aminophenyl) porphyrin metal complex. The method comprises the following steps: 1) taking organic acid as a solvent and pyrrole and 4-halogen benzaldehyde as substrates, and carrying out condensation reaction to obtain a (4-halogen phenyl) porphyrin solid; 2) dissolving the (4-halogen phenyl) porphyrin solid in an organic solvent, adding a metal salt, and reacting to obtain a (4-halogen phenyl) porphyrin metal complex; and 3) taking the (4-halophenyl) porphyrin metal complex and ammonia water as substrates, and carrying out carbon-nitrogen coupling reaction in the presence of a catalyst and an organic solvent to obtain the tetra (4-aminophenyl) porphyrin metal complex. The method is mild in reaction condition, low in toxicity, green and environment-friendly.

A high-performance photoelectrochemical sensor for the specific detection of H2O2and glucose based on an organic conjugated microporous polymer

Cathodic photoelectrochemical (PEC) biosensors are one of ideal systems for sensing applications owing to their advantages in the low-cost, simplicity of the detection and miniaturization of the sensors with high sensitivity and specificity. Herein, a high-performance PEC sensor based on a 2D porphyrin-phthalocyanine conjugated microporous polymer (PorPc-CMP) is reported for the specific detection of H2O2 and glucose in the wide linear ranges of 0.05-100 and 0.05-5000 μM with an ultra-low limit of detection (LOD) of 13 and 27 nM, respectively. All of them achieved the best levels, when compared to H2O2 and glucose tetrapyrrole-based photoelectrochemical sensors reported so far. After a comparative analysis on the morphology, optical-electrical properties and partial charge density plots by DFT calculations for the PorPc-CMP and its analogues (PorPor-CMP and PcPc-CMP), it is revealed that the high PEC-sensing performance of PorPc-CMP is largely related to the synergistic effect of unique multi-channel D-A structure and elaborate hollow tube-like morphology, which leads to the effective charge separation, enhanced charge transportability and high utilization of light irradiation. Furthermore, good accuracy of the PorPc-CMP PEC sensor was demonstrated in real sample analysis of H2O2 disinfectant and human serum samples. This journal is

UV–visible and fluorescence spectroscopic assessment of meso?tetrakis?(4?halophenyl) porphyrin; H2TXPP (X = F, Cl, Br, I) in THF and THF-water system: Effect of pH and aggregation behaviour

The current study determines optical and fluorescence response of halogen substituted series of meso?tetrakis?(4?halophenyl) porphyrin; H2TXPP (Halo = F, Cl, Br, I) dye in tetrahydrofuran; THF and THF-water system at changing pH in relationship with changing medium of allure. Effects produced by varying the pH and medium, over spectral and aggregation were discussed in detail. Results show sequential protonation and deprotonation of H2TXPP series in acidic (pH = 4) and (pH =10) basic medium. Specific structural changes of monomeric absorption band were put in evidence on lowering pH, which includes broadening and splitting of soret or B band. Other changes include increasing in intensity and red-shifting of Q1 band indicating some degree of aggregation. The side-by-side aggregation and formation of J-aggregate were quite evident. The red shift of B band featured self-aggregation through head-to-tail molecular ordering which is consonant with absorption-emission data.

Synthesis of Highly Fluoroalkyl-Functionalized Oligoporphyrin Systems

Four different multiporphyrin systems have been synthesized and characterized. Highly fluoroalkyl-functionalized porphyrins are the most complex objects so far to have exhibited quantum wave nature. We have functionalized larger oligoporphyrin systems with fluoroalkyl chains to increase their mass and minimize their intermolecular interactions. The to-some-extent random substitution of fluorine atoms at the periphery of the oligoporphyrins results in libraries consisting of molecules varying in both the number and spatial distribution of substituents. The mass-selected individual members of these libraries were designed for quantum interference experiments. To investigate the volatilization nature of the molecules within the library, laser desorption and post-ionization studies were performed. These studies demonstrated that molecular beams of suitable velocity and ionization cross-section can be obtained from these libraries. In particular, we present these features for two libraries, based on either a tetrahedrally arranged central porphyrin tetramer or a more planar porphyrin pentamer.

Exploring supramolecular self-assembly of tetraarylporphyrins by halogen bonding: Crystal engineering with diversely functionalized six-coordinate tin(L)2-porphyrin tectons

This study targets the construction of porphyrin assemblies directed by halogen bonds, by utilizing a series of purposely synthesized Sn(axial ligand)2-(5,10,15,20-tetraarylporphyrin) [Sn(L)2-TArP] complexes as building units. The porphyrin moiety and the axial ligands in these compounds contain different combinations of complimentary molecular recognition functions. The former bears p-iodophenyl, p-bromophenyl, 4'-pyridyl, or 3'-pyridyl substituents at the meso positions of the porphyrin ring. The latter comprises either a carboxylate or hydroxy anchor for attachment to the porphyrin-inserted tin ion and a pyridyl-, benzotriazole-, or halophenyl-type aromatic residue as the potential binding site. The various complexes were structurally analyzed by single-crystal X-ray diffraction, accompanied by computational modeling evaluations. Halogen-bonding interactions between the lateral aryl substituents of one unit of the porphyrin complex and the axial ligands of neighboring moieties was successfully expressed in several of the resulting samples. Their occurrence is affected by structural (for example, specific geometry of the six-coordinate complexes) and electronic effects (for example, charge densities and electrostatic potentials). The shortest intermolecular I×××N halogen-bonding distance of 2.991A was observed between iodophenyl (porphyrin) and benzotriazole (axial ligand) moieties. Manifestation of halogen bonds in these relatively bulky compounds without further activation of the halophenyl donor groups by electron-withdrawing substituents is particularly remarkable. Porphyrins in tandem: Porphyrin-based network materials can been supramolecularly organized into one-dimensional and two-dimensional structures by means of cooperative directional halogen bonding (see figure). Copyright

Synthesis and fluorescence properties of covalently linked homo- and hetero-porphyrin dyads containing meso-tolyl porphyrin and meso-furyl porphyrin sub-units

Three porphyrin building blocks with N4, N3S and N2S2 cores having three meso-furyl groups and one meso-iodophenyl group were synthesized and characterized. The porphyrin building blocks were used to synthesize

Synthesis and spectroscopy of a series of substituted N-confused tetraphenylporphyrins

A series of N-confused tetraphenylporphyrins (H2NCTPPs) with substituents on either the paraor the 3,5-positions of the meso phenyl rings were prepared using Lindsey conditions. Both electron-withdrawing and electron-donating groups were chosen in order to probe the effects of peripheral substitution on the properties of the macrocycles. The series includes 5,10,15,20-tetra-(4-R-phenyl) N-confused porphyrins (where R = bromo (1), iodo (2), cyano (3), methoxy (4), 2′,5′-dimethoxyphenyl (5), or ethynyl (6)) and 5,10,15,20-(3,5-di-ieri-butylphenyl) N-confused porphyrin (7). Absorption and steady-state fluorescence measurements were carried out, and quantum yields were measured for all compounds in both dichloromethane (CH 2Cl2) and dimethylacetamide (DMAc).

Synthesis of 21-thia and 21-oxaporphyrin building blocks and boron-dipyrrin appended systems

A series of 21-thia and 21-oxaporphyrin building blocks bearing iodo-, ethynyl-and aldehyde functional groups were synthesized and characterized. These porphyrins are ideal building blocks for the construction of unsymmetrical porphyrin arrays containing