Spectroscopic and photochemical properties of water-soluble metalloporphyrins of distorted structure

O Horváth, Z Valicsek, G Harrach, G Lendvay… - Coordination Chemistry …, 2012 - Elsevier
The location of the metal center in the porphyrin complexes strongly depends on its size,
charge and spin multiplicity. Metal ions can form normal (in-plane) metalloporphyrins, or …

Application of the electronic spectra of porphyrins for analytical purposes: The effects of metal ions and structural distortions

Z Valicsek, O Horváth - Microchemical Journal, 2013 - Elsevier
We investigated the UV-Vis absorption, singlet-1 and singlet-2 fluorescence, as well as the
formation of several metalloporphyrins from equilibrial and kinetic aspects in aqueous …

A versatile cellulose nanocrystal‑carbon dots architecture: Preparation and environmental/biological applications

R Li, F Liang, X Hu, H Bian, C Deng, F Seidi… - Carbohydrate …, 2022 - Elsevier
In this work, a versatile cellulose nanocrystal‑carbon dots (CNC-CDs) architecture is
prepared and applied in environmental remediation and biological sensing. The citric acid …

Controllable Synthesis of Hemoglobin–Metal Phosphate Organic–Inorganic Hybrid Nanoflowers and Their Applications in Biocatalysis

J Gao, H Liu, C Tong - Inorganic Chemistry, 2023 - ACS Publications
In recent years, organic–inorganic hybrid nanoflower technology has become an effective
method for enzyme immobilization. Here, seven hierarchical flower-like hemoglobin …

Ferrochelatase: the convergence of the porphyrin biosynthesis and iron transport pathways

GA Hunter, S Al-Karadaghi… - Journal of porphyrins and …, 2011 - World Scientific
Ferrochelatase (also known as PPIX ferrochelatase; Enzyme Commission number 4.9. 9.1.
1) catalyzes the insertion of ferrous iron into PPIX to form heme. This reaction unites the …

Photophysical and photocatalytic behavior of cobalt (III) 5, 10, 15, 20-tetrakis (1-methylpyridinium-4-yl) porphyrin

MA Fodor, O Horváth, L Fodor, G Grampp… - Inorganic Chemistry …, 2014 - Elsevier
Although kinetically inert cationic Co (III) TMPyP 5+(H 2 TMPyP 4+= 5, 10, 15, 20-tetrakis (1-
methylpyridinium-4-yl) porphyrin) was considered earlier to be very weakly emissive, both …

Formation, photophysics, and photochemistry of cadmium (II) complexes with 5, 10, 15, 20-tetrakis (4-sulfonatophenyl) porphyrin and its octabromo derivative: The …

Z Valicsek, O Horváth, G Lendvay, I Kikaš… - Journal of Photochemistry …, 2011 - Elsevier
In slightly alkaline solution (pH 8) Cd (II) ion and 5, 10, 15, 20-tetrakis (4-sulfonatophenyl)
porphyrin (H2P4−) form a kinetically labile complex (HOCdP5−), in which the metal center is …

Equilibrium, photophysical, photochemical, and quantum chemical examination of anionic mercury (II) mono-and bisporphyrins

Z Valicsek, G Lendvay, O Horvath - The Journal of Physical …, 2008 - ACS Publications
Mercury (II) ion and 5, 10, 15, 20-tetrakis (parasulfonato-phenyl) porphyrin anion can form 1:
1, 2: 2, and 3: 2 (metal ion/porphyrin) out-of-plane (OOP) complexes, from which Hg2P28 …

Characterization of the UV-Visible absorption spectra of manganese (III) porphyrins with time-dependent density functional theory calculations

MA Fodor, P Szabó, G Lendvay… - … für Physikalische Chemie, 2022 - degruyter.com
Mn (III) porphyrins display a unique UV–Vis spectrum: compared to the free-base and other
metalloporphyrins, a strong red shift of the Soret-band and several extra bands can be …

Equilibrium, photophysical and photochemical examination of anionic lanthanum (III) mono-and bisporphyrins: the effects of the out-of-plane structure

Z Valicsek, G Eller, O Horváth - Dalton Transactions, 2012 - pubs.rsc.org
Lanthanum (III) ions form kinetically labile complexes with the 5, 10, 15, 20-tetrakis (4-
sulfonatophenyl) porphyrin anion (H2TSPP4−), the compositions and formation constants of …