A5082459401- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Immune cells in cancer
- Cancer Research and Treatments
- Gold and Silver Nanoparticles Synthesis and Applications
- Quantum, superfluid, helium dynamics
- Zeolite Catalysis and Synthesis
- Hydrogen Storage and Materials
- Crystallography and molecular interactions
- Advanced Chemical Physics Studies
- Nanoparticles: synthesis and applications
- Catalytic Processes in Materials Science
- Advanced NMR Techniques and Applications
- Cancer Cells and Metastasis
- Covalent Organic Framework Applications
- Inorganic Fluorides and Related Compounds
- Magnetism in coordination complexes
- Nanoplatforms for cancer theranostics
- Cancer Mechanisms and Therapy
- Rare-earth and actinide compounds
- Laser-Ablation Synthesis of Nanoparticles
- Carbon Dioxide Capture Technologies
- Receptor Mechanisms and Signaling
- Immune Cell Function and Interaction
Sofia University "St. Kliment Ohridski"
2015-2024
Institute of Molecular Biology
2019
Institute of Molecular Biology and Biotechnology
2019
Georgi Nadjakov Institute of Solid State Physics
2018
University of Milan
2007-2017
Mylan (South Africa)
2014-2017
University of Salford
2002-2007
University of Twente
2007
University of California, Santa Barbara
2007
Bulgarian Academy of Sciences
2004-2006
Hydrogen molecules adsorbed in the nickel, cobalt, and magnesium analogs of CPO-27 metal–organic framework at low loadings interact significantly more strongly than those successively as a consequence strong interaction hydrogen with coordinatively unsaturated metal cations framework.
The exceptional nature of the rht-MOF platform, based on a singular edge-transitive net (the only for combination 3- and 24-connected nodes), makes it an ideal target in crystal chemistry. high level control indicates unparalleled blueprint isoreticular functional materials (without concern interpenetration) targeted applications. Detailed facts importance to specialist readers are published as ”Supporting Information”. Such documents peer-reviewed, but not copy-edited or typeset. They made...
We present a comparative study of hydrogen gas adsorption experiments on CPO-27–Cu and –Mn. The initial isosteric heat in is low for material containing open metal sites contrast to the other members CPO-27 series, including Mn compound.
An amorphous manganese hydride molecular sieve that reversibly absorbs 10.5 wt% and 197 kgH<sub>2</sub>m<sup>−3</sup>hydrogen at room temperature using the Kubas interaction.
We report on the synthesis and gas adsorption properties (i.e., Ar H2) of four robust 3-periodic metal–organic frameworks (MOFs) having targeted soc topology. These cationic MOFs are isostructural to parent indium-based MOF, In-soc-MOF-1a (for NO3–), previously reported by us, likewise constructed from assembly rigid μ3-oxygen-centered trinuclear metal carboxylate clusters, [M3O(O2C−)6], where M = In3+ or Fe3+. Each inorganic molecular building block (MBB), generated in situ, is bridged six...
We have measured the rotational tunneling spectrum of a Cu−ZSM-5 zeolite after loading with H2, by means inelastic incoherent neutron scattering. The peaks at ±0.80 and ±1.73 cm-1 unambiguously demonstrate formation strongly bound Cu(η2-H2) complex.
Grand canonical Monte Carlo (GCMC) simulations were performed to investigate CO2 and H2 sorption in an rht-metal–organic framework (MOF) that was synthesized with a ligand having nitrogen-rich trigonal core through trisubstituted triazine groups amine functional groups. This MOF by two different groups, each reporting their own distinct gas measurements crystal structure. Electronic structure calculations demonstrated the small differences atomic positions between group's resulted...
We have studied the electronic structure and reactivity of coordinatively unsaturated rhodium centers, being part dirhodium paddle wheel type Secondary Building Unit (SBU), in a microporous Metal-Organic Framework (MOF). This manifests Rh(I)-like local at accessible adsorption sites, prone to relatively strong interactions with small molecule guests like dihydrogen, dinitrogen, nitrous oxide, iodine containing compounds, as few examples. Thе site chemistry is confirmed by situ FTIR...
A combined inelastic neutron scattering (INS) and theoretical study of H2 sorption in Y-FTZB, a recently reported metal–organic framework (MOF) with fcu topology, reveals that the strongest binding site MOF causes high barrier to rotation on sorbed H2. This rotational for is highest yet materials based physisorption.
The effects of pore size reduction on the dynamics hydrogen sorption in metal–organic materials (MOMs) were elucidated by studying SIFSIX-2-Cu and its doubly interpenetrated polymorph SIFSIX-2-Cu-i means sorption, inelastic neutron scattering (INS), computational modeling. exhibits much smaller sizes, which possess high H2 affinity at low loadings. Experimental measurements revealed that isosteric heat adsorption (Qst) for is nearly two times higher than (8.6 vs. 4.6 kJ mol−1). INS spectrum...
Gold nanoparticles (AuNPs) exhibit strong X-ray absorption, making them promising candidates for enhancing medical diagnostics and imaging. However, understanding their behaviour under ionizing radiation is crucial safe effective clinical translation. This study examines the impact of varying irradiation doses on morphology physicochemical properties AuNPs. AuNPs synthesized via classical Turkevich method were characterized using UV-Vis spectroscopy, atomic force microscopy (AFM)...
An inelastic neutron scattering (INS) study of the rotational–vibrational spectrum dihydrogen sorbed by zeolite X having substituted sodium, calcium and zinc cations is reported. The H2 was observed at low energy transfer (below ca. 25 meV, 202 cm−1); vibration that molecule against binding site (H2–X, not H–H). frequency proportional to polarising power cation (Na+ < Ca2+ Zn2+). Polarisation dominated interaction with this site. total intensity dose. However vibrational intensities became...
Simulations of H2 sorption were performed in a metal–organic framework (MOF) consisting Zn2+ ions coordinated to 1,2,4-triazole and tetrafluoroterephthalate ligands (denoted [Zn(trz)(tftph)] this work). The simulated isotherms reported work are consistent with the experimental data for state points considered. isosteric heat adsorption (Qst) values MOF approximately 8.0 kJ mol–1 considered loading range, which is proximity those determined from simulation. inelastic neutron scattering (INS)...
Metal–organic frameworks (MOFs) are permanently porous, crystalline materials and promising hydrogen sorbents. However, the H2 heats of adsorption generally too small to promote significant under desired storage conditions. Increasing H2–framework interaction energy is a prominent goal current MOF design. Hydrogen binds MOFs through variety interactions, such as dispersion, charge–induced-dipole, charge–quadrupole, even chemical bonding. To date, these interactions have been enhanced by...
The open copper metal sites in CPO-27-Cu were studied by means of IR spectroscopy adsorbed CO and NO, density functional theory calculations. Very low Lewis acidity the Cu2+ was established (IR band at 2153–2149 cm–1). Variable-temperature experiments indicate adsorption enthalpy ca. −20 kJ mol–1. It also found that is a sensitive probe occupation neighboring sites. In contrast to general expectations, NO very weakly on (−14.5 mol–1, 1888 effect attributed particular ion coordination...
Low and ambient temperature binding of oxygen, O<sub>2</sub>, in MOF-74, CPO-27-M (M = Mn, Co, Ni, Cu, Zn) framework materials remains the physisorption regime, with energetics very similar to that nitrogen, N<sub>2</sub>, sorption.