A5041400477- Metal-Organic Frameworks: Synthesis and Applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Porphyrin and Phthalocyanine Chemistry
- Covalent Organic Framework Applications
- Photodynamic Therapy Research Studies
- Nanoplatforms for cancer theranostics
- Crystallography and molecular interactions
- Inorganic Chemistry and Materials
- Adsorption and biosorption for pollutant removal
- Advanced Photocatalysis Techniques
- Chemical Synthesis and Characterization
- Analytical Chemistry and Sensors
- Radioactive element chemistry and processing
- Boron Compounds in Chemistry
- Dendrimers and Hyperbranched Polymers
- Organic and Molecular Conductors Research
- Layered Double Hydroxides Synthesis and Applications
- Organometallic Complex Synthesis and Catalysis
- Catalytic Processes in Materials Science
- Gas Sensing Nanomaterials and Sensors
- Nanocluster Synthesis and Applications
- Organometallic Compounds Synthesis and Characterization
- transportation and logistics systems
- Arsenic contamination and mitigation
Czech Academy of Sciences, Institute of Inorganic Chemistry
2013-2024
National Institute for Materials Science
2020-2024
Institute of Inorganic Chemistry of the Slovak Academy of Sciences
2021
Charles University
2016-2018
Nuclear Research Institute Rez (Czechia)
2018
Research Centre Rez
2016-2017
Microbial colonization of biomedical devices is a recognized complication contributing to healthcare-associated infections. One the possible approaches prevent surfaces from biofilm formation antimicrobial photodynamic inactivation based on cytotoxic effect singlet oxygen, O2(1Δg), short-lived, highly oxidative species, produced by energy transfer between excited photosensitizers and molecular oxygen. We synthesized porphyrin-based covalent organic frameworks (COFs) Schiff-base chemistry....
Abstract Metal–organic frameworks (MOFs) are a chemically and topologically diverse family of materials composed inorganic nodes organic linkers bound together by coordination bonds. Presented here two significant innovations in this field. The first is the use new group, phenylene‐1,4‐bis(methylphosphinic acid) (PBPA), phosphinic acid analogue commonly used terephtalic acid. Use linker group leads to formation hydrothermally stable permanently porous MOF structure. second innovation...
Chromophores that generate singlet oxygen (1O2) in water are essential to developing noninvasive disease treatments using photodynamic therapy (PDT). A facile approach for formation of stable colloidal nanoparticles 1O2 photosensitizers, which exhibit aggregation enhanced generation toward applications as PDT agents, is reported. Chromophore encryption within a fuchsonarene macrocyclic scaffold insulates the photosensitizer from induced deactivation pathways, enabling higher chromophore...
A zirconium metal-organic framework (MOF) PCN-222 was postsynthetically modified with diphenylphosphinic acid, resulting in an increased stability when activated from water and 4 times higher photosensitizing properties for singlet oxygen production. The phosphinic acid did not compromise the crystallinity of MOF but made strong bonds zirconia secondary building units.
Novel porphyrin-based conjugated microporous polymers displayed high O<sub>2</sub>(<sup>1</sup>Δ<sub>g</sub>) production, were stable in organic solvents, and did not undergo measurable photobleaching.
This Article presents the systematic experimental and theoretical investigation of structural arrangements dodecyl sulfate (DS) anions in interlayer space layered zinc hydroxide salts (LZH-DS) structure layers, with a detailed description ions' coordination environment. As-prepared, well-crystalline LZH-DS has basal spacing 31.5 Å. After treatment methanol at room temperature, layers shrank to form two new phases spacings 26.4 24.7 The shrinking was accompanied by decrease content DS space,...
Recent studies have unraveled the potential of octahedral molybdenum cluster complexes (Mo6) as relevant red phosphors and photosensitizers singlet oxygen, O2(1Δg), for photobiological applications. However, these tend to hydrolyze in an aqueous environment, which deteriorates their properties limits To address this issue, we show that phenylphosphinates are extraordinary apical ligands construction Mo6 complexes. These new display unmatched luminescence quantum yields oxygen production...
Porous metal-organic frameworks (MOFs) have excellent characteristics for the adsorptive removal of environmental pollutants. Herein, we introduce a new series highly stable MOFs constructed using Fe3+ and Al3+ metal ions bisphosphinate linkers. The isoreticular design leads to ICR-2, ICR-6, ICR-7 with honeycomb arrangement linear pores, surface areas up 1360 m2 g-1, high solvothermal stabilities. In most cases, their sorption capacity is retained even after 24 h reflux in water. choice...
Nanometric thin films were prepared by dip-coating and inkjet printing ZnO nanosheets on glass plates. The side-by-side alignment of the substrate resulted in thin, transparent, oriented surfaces with high-energy {001} facets exposed. method nanosheet deposition affected film morphology; dip-coated very smooth nonporous, while inkjet-printed rough porous estimated void volume approximately 60-70% total volume. first-order rate constants for photocatalytic degradation 4-chlorophenol...
Metal-organic frameworks (MOFs) are attracting increasing attention as adsorbents of contaminants emerging concern that difficult to remove by conventional processes. This paper examines how functional groups covering the pore walls phosphinate-based MOFs affect adsorption specific pharmaceutical pollutants (diclofenac, cephalexin, and sulfamethoxazole) their hydrolytic stability. New structures, isoreticular phosphinate MOF ICR-7, presented. The phenyl ring facing wall presented is modified...
A series of porous organic polymers based on a singlet oxygen generating oxoporphyinogen ('OxP') has been successfully prepared from pseudotetrahedral OxP-tetraamine precursor (OxP(4-NH2Bn)4) by its reaction with tetracarboxylic acid dianhydrides under suitable conditions. Of the compounds studied, those containing naphthalene (OxP-N) and perylene (OxP-P) spacers, respectively, have large surface areas (~530 m2 g−1). On other hand, derivative simple benzene spacer (OxP-B) exhibits best1O2...
Abstract Metal–organic frameworks (MOFs) are a chemically and topologically diverse family of materials composed inorganic nodes organic linkers bound together by coordination bonds. Presented here two significant innovations in this field. The first is the use new group, phenylene‐1,4‐bis(methylphosphinic acid) (PBPA), phosphinic acid analogue commonly used terephtalic acid. Use linker group leads to formation hydrothermally stable permanently porous MOF structure. second innovation...
Nanosized porphyrin-containing metal-organic frameworks (MOFs) attract considerable attention as solid-state photosensitizers for biological applications. In this study, we have the first time synthesised and characterised phosphinate-based MOF nanoparticles, nanoICR-2 (Inorganic Chemistry Rez). We demonstrate that can be decorated with anionic 5,10,15,20-tetrakis(4-R-phosphinatophenyl)porphyrins (R = methyl, isopropyl, phenyl) by utilizing unsaturated metal sites on nanoparticle surface....
Porphyrin phosphinates are attractive candidates for photodynamic applications since their cellular uptake can be easily tuned by the substituent on phosphorus atoms.
The stability of MOFs in aqueous environments is influenced by the linker topicity rather than connectivity. Only MIP-200 survives alkaline environment.
The design and preparation of highly active heterogeneous palladium catalysts is attracting ever‐increasing attention. In this paper, we report on the self‐assembly centers an octahedral molybdenum cluster complex bearing phosphine terminal ligands. This leads to a coordination polymer exhibiting high catalytic activity in Suzuki–Miyaura cross‐coupling reaction. achieved turnover number 15800 reaction deactivated aryl bromides with phenylboronic acid. Because metal clusters represent rare...
Meso-Tetrakis-(3,4,5-tris{2-[2-(2-methoxyethoxy)ethoxy]ethoxy}phenyl)porphyrin TEG12PH2 is reported as an 'omnisoluble' reference for singlet oxygen (1O2) generation quantum yield (ΦSO) estimation. a highly soluble, nonionic compound possessing excellent 1O2 QY in wide variety of common solvents, including water. was prepared on multigram scale by the 12-way O-alkylation tetrakis(3,4,5-trihydroxyphenyl)porphyrin using 2-(2-(2-methoxyethoxy)ethoxy)ethyl 4-toluenesulfonate reaction solvent....
Metal-organic frameworks (MOFs) are attracting attention as potential proton conductors. There two main advantages of MOFs in this application: the possibility rational design and tuning properties clear conduction pathways given by their crystalline structure. We hereby present new MOF structures, ICR-10 ICR-11, based on tetratopic phosphinate ligands. The structures both were determined 3D electron diffraction. They crystallize P3̅ space group contain arrays parallel linear pores lined...
The first Ce(III)-based coordination polymer ICR-9 (ICR stands for Inorganic Chemistry Řež), with the formula Ce2(C8H10P2O4)3, containing ditopic phenylene-1,4-bis(methylphosphinic acid) linker, was synthetized under solvothermal conditions. crystal structure, solved using electron diffraction tomography (EDT), revealed 2D layers of octahedrally coordinated cerium atoms attached together through O-P-O bridges. structure is nonporous, however, modification synthetic conditions led to...
Meso-5,10,15,20-tetrakis-3,5-di-tert-butyl-4-oxocyclohexadienylideneporphyrinogen, OxP, is a versatile, highly colored chromophore with strong broad absorption in the visible range. It derived from meso-5,10,15,20-tetrakis(3,5-di-tert-butyl-4-hydroxyphenyl)porphyrin by two-electron oxidation, and OxP tetrapyrrole moiety exists saddle conformation. N-Alkylation of core nitrogen atoms can be used to functionalize leading class stable molecules substituted peripheries. Substituted OxPs act as...
As a preliminary step toward its condensation into the porous polymer Activated Borane, thermolysis of nido-B10H14 (1) in benzene at 200 °C results generation number phenylated borane molecular species. The principal product is new monophenylated compound 5-Ph-nido-B10H13 (2), isolated 48% yield (based on consumption 1) and structurally characterized by single-crystal X-ray diffraction analysis, NMR, mass spectrometry along with other minor products, such as 6-Ph-nido-B10H13 (3), for which...
It was found that the protic acids derived from B<sub>10</sub>H<sub>10</sub>and B<sub>12</sub>H<sub>12</sub>clusters have an unusual intercalation bonding scheme,<italic>i.e.</italic>, H<sup>δ−</sup>⋯H<sup>δ+</sup>bonds.