Chemistry (Scholarly Publications): Recent submissions
Now showing items 501-520 of 931
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Porphyrin substituent regiochemistry, conformation and packing - The case of 5,10-diphenylporphyrin
(2015)5,10-Disubstituted porphyrins are more recent additions to the family of meso-substituted porphyrins. A crystallographic comparison of 5,10-diphenylporphyrin with the regioisomeric 5,15-disubstituted system reveals ... -
Chemical synthesis and medicinal applications of glycoporphyrins
(2015)This review presents an in-depth overview of the modification of porphyrins with bioconjugates and their applications in medicine today. Porphyrin bioconjugates ranging from nucleotides to steroids are under active ... -
Crystal structure of 5,10,15-triphenyl-20-(4,4,5,5-tetra-methyl-1,3,2-dioxaborolan-2-yl)porphyrin.
(2014)In the title compound, C44H37BN4O2, the dihedral angle between the plane of the porphyrin macrocycle ring system [r.m.s. deviation = 0.159 (1) Å] and those of three phenyl rings are 66.11 (4), 74.75 (4) and 57.00 (4)°. The ... -
Low overpotential high activity manganese/ruthenium mixed oxide electrocatalysts for oxygen evolution in alkaline media.
(2015)The combination of a platinum group material (i.e. ruthenium) with a first row transition metal (i.e. manganese) could provide stability and lower the cost of OER electrocatalyst, while still ... -
The Molecular and Crystal Structures of Galvinol Derivatives
(2012)Galvinols are interesting, sterically hindered compounds that serve as precursors for the generation of stable galvinoxyl radicals. In order to elucidate their basic structural chemistry and the influence of steric effects ... -
Synthesis and biological evaluation of a library of glycoporphyrin compounds.
(2012)A library of glycosylated porphyrins (Glycoporphyrins) was prepared and evaluated for their PDT activity against oesophageal squamous cell carcinoma cell line OE21 in vitro. Synthetic methodology was developed to ... -
Lead structures for applications in photodynamic therapy. 5. Synthesis and biological evaluation of water soluble phosphorus (V) 5,10,15,20-tetraalkylporphyrins for PDT.
(2014)Summary Improved photosensitizers for use in photomedicine must possess good water-solubility and optimal photophysical properties. Phosphorus(V) porphyrins fulfill these criteria and are a class of porphyrins with ... -
Structural investigation of 5,10-A2B2-type porphyrins Palladium(II) and zinc(II) complexes of 5,10-dibromo-15,20-bis(4-methylphenyl)porphyrin.
(2014)The analysis of [5,10-dibromo-15,20-bis(4-methylphenyl)por- phyrinato]palladium(II), [Pd(C 34 H 22 Br 2 N 4 )], and [5,10-di- bromo-15,20-bis(4-methylphenyl)porphyrinato](methanol)- zinc(II), [Zn(C 34 H 22 ... -
Impact of Substituents and Nonplanarity on Nickel and Copper Porphyrin Electrochemistry: First Observation of a Cu-II/Cu-III Reaction in Nonaqueous Media
(2014)ABSTRACT Electrochemical studies of the oxidation of dodecasubstitued and highly nonplanar nickel porphyrins in a non-coordinating solvent have previously revealed the first NiIII porphyrin dication. Herein, we investigate ... -
Tailoring Porphyrin (Nano)structures.
(2014)Porphyrins present one of the most ubiquitous classes of compounds in chemistry, optics, medicine, and materials science. This is a result of their multifaceted roles in nature and the wide range of tunable molecular ... -
Chlorophylls, Symmetry, Chirality, and Photosynthesis.
(2014)Chlorophylls are a fundamental class of tetrapyrroles and function as the central reaction center, accessory and photoprotective pigments in photosynthesis. Their unique individual photochemical properties are a consequence ... -
Synthesis of Diazepine-fused Porphyrinoids and Annulated Porphyrin Arrays
(2014)Porphyrins with exocyclic rings allow for significant modulation of the photochemical properties of the macrocycle via modulation of the aromatic system through electronic and conformational effects. Here we sought to ... -
Simple Porphyrin Desymmetrization: 5,10,15,20-Tetrakis(3-hydroxyphenyl)porphyrin (mTHPP) as a Gateway Molecule for Peripheral Functionalization
(2014)Abstract: The rise in the demand towards unsymmetric porphyrin systems for use in applications such as photodynamic therapy and non-linear optics mandates a concomitant development of simple and practical syntheses ... -
The translocator protein as a potential molecular target for improved treatment efficacy in photodynamic therapy.
(2014)Abstract: Since it’s serendipitous discovery by researchers over thirty years ago, the translocator protein (18 kDa) (TSPO) has been demonstrated to play an important role in a multitude of critical biological processes. ... -
(5-n-Butyl-10,20-diisobutylporphyrinato)nickel(II).
(2014)The asymmetric unit of the title compound, [Ni(C 32 H 36 N 4 )], contains two independent molecules exhibiting an overall ruffled conformation of the porphyrin macrocycle and differing mainly in the positions of ... -
Ni Cu ion exchange observed for Ni(II) porphyrins on Cu(111).
(2014)A Ni–Cu ion exchange has been observed for (5,15-dibromo-10,20-diphenylporphyrinato)nickel(II) (NiDBrDPP) and (5,10,15,20-tetrakis(4-bromophenyl)porphyrinato)nickel(II) (NiTBrPP) on Cu(111). The ion exchange proceeds at a ... -
Graphene field emission devices
(2014)Graphene field emission devices are fabricated using a scalable process. The field enhancement factors, determined from the Fowler-Nordheim plots, are within few hundreds and match the theoretical predictions. The devices ... -
The application of chiroptical spectroscopy (circular dichroism) in quantifying binding events in lanthanide directed synthesis of chiral luminescent self-assembly structures
(2015)The binding of asymmetrical and optically pure tridentate ligands (L = 1(S) and 1(R)) containing one carboxylic group and 2-naphthyl as an antenna to lanthanide ions (M = La(III) and Eu(III)) was studied in CH3CN, showing ... -
Displacement assay detection by a dimeric lanthanide luminescent ternary Tb(iii)-cyclen complex: High selectivity for phosphate and nitrate anions
(2014)The luminescent dimeric ternary lanthanide–cyclen complexes (2-(Ln.1)2; Ln = Tb/Eu) were designed and both their self-assembly formation and their ability to detect anions via displacement assays were investigated using ... -
"Synthesis, structural, photophysical and electrochemical studies of various d-metal complexes of btp [2,6-bis(1,2,3-triazol-4-yl)pyridine] ligands that give rise to the formation of metallo-supramolecular gels"
(2014)2,6-Bis(1,2,3-triazol-4-yl)pyridine (btp) is a terdentate binding motif that is synthesised modularly via the CuAAC reaction. Herein, we present the synthesis of ligands 1 and 2 and the investigation of the coordination ...
