A5085909775- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Crystallography and molecular interactions
- Magnetism in coordination complexes
- Porphyrin and Phthalocyanine Chemistry
- Inorganic Chemistry and Materials
- Ion-surface interactions and analysis
- Advanced Chemical Physics Studies
- Crystal Structures and Properties
- Metal and Thin Film Mechanics
- Lanthanide and Transition Metal Complexes
- Photosynthetic Processes and Mechanisms
- Iron oxide chemistry and applications
- Advanced Materials Characterization Techniques
- Crystallography and Radiation Phenomena
- High-pressure geophysics and materials
- Electron and X-Ray Spectroscopy Techniques
- Geological and Geochemical Analysis
- Advanced NMR Techniques and Applications
- Metal-Catalyzed Oxygenation Mechanisms
- Minerals Flotation and Separation Techniques
- Spectroscopy and Quantum Chemical Studies
- Inorganic Fluorides and Related Compounds
- X-ray Spectroscopy and Fluorescence Analysis
- Iron-based superconductors research
Jagiellonian University
2012-2023
Institute of Physics
2011-2023
Czech Academy of Sciences, Institute of Physics
2017-2020
Laboratoire de physique des Solides
2016-2018
Bunkyo University
2015
Masaryk University
2012
Philipps University of Marburg
1980-1998
Institute of Molecular Physics of the Polish Academy of Sciences
1993
Polish Academy of Sciences
1993
Institute of Mineralogy
1987-1990
Precisely controlled stoichiometric mixtures of Co(2+) and Fe(2+) metal ions were combined with the [W(V)(CN)8](3-) metalloligand in a methanolic solution to produce series trimetallic cyanido-bridged {Fe(9-x)Co(x)[W(CN)8]6(MeOH)24}·12MeOH (x = 0, 1, ..., 8, 9; compounds 9) clusters. All compounds, 0-9, are isostructural, consist pentadecanuclear clusters six-capped body-centered cube topology, capped by methanol molecules which coordinated 3d centers. Thus, they can be considered as unique...
Abstract The self‐assembly of iron(II) ions with rare octacyanidorhenate(V) metalloligands in a methanolic solution results the formation nanometric pentadecanuclear {Fe II 9 [Re V (CN) 8 ] 6 (MeOH) 24 }⋅10 MeOH ( 1 ) molecule six‐capped body‐centered cubic topology. cluster demonstrates thermally‐induced spin‐crossover phase transition at T 1/2 =195 K which occurs selectively for single Fe ion embedded center core.
Magnetic photoswitching is a highly important but relatively rare phenomenon for enabling optical writing/reading of the magnetic state molecule. In this work, an unprecedented site-selective double reported from assembly two different "photomagnetic chromophores" into single hexanuclear molecule: namely, spin-crossover Fe(II) center exhibiting light-induced excited spin trapping (LIESST) and photochemically active octacyanometalate(IV) unit. Four magnetization levels are accessible through...
Abstract Bistable and stimuli‐responsive molecule‐based materials are promising candidates for the development of molecular switches sensors future technologies. The CN‐bridged {NH 4 [Ni(cyclam)][Fe(CN) 6 ]⋅5 H 2 O} n chain exists in two valence states: Ni II ‐Fe III ( 1 HT ) LT shows unique multiresponsivity under ambient conditions to various stimuli, including temperature, pressure, light, humidity, which generate measurable response form significant changes magnetic susceptibility color....
We report a unique synthetic route toward the multistep spin crossover (SCO) effect induced by utilizing partial ligand transformation during crystallization process, which leads to incorporation of three different FeII complexes into single coordination framework. The 3-acetoxypyridine (3-OAcpy) molecules were introduced self-assembled FeII-[MIV(CN)8]4- (M = Mo, Nb) system in aqueous solution results hydrolysis 3-hydroxypyridine (3-OHpy). It gives two novel isostructural three-dimensional...
<italic>N</italic>,<italic>N</italic>,<italic>N</italic>-tridentate ligands coordinated to {Fe<sub>9</sub>[M(CN)<sub>8</sub>]<sub>6</sub>} (M = Re, W) induce the spin crossover on external Fe sites of cluster.
Common pegmatites commonly occur in migmatized biotite-sillimanite gneisses and felsic granulites of the Strazek Unit, Moldanubian Zone, the Czech Republic. Mostly concordant dikes or irregular bodies consisting an outer granitic unit, a graphic unit pocket with large crystals (up to 1 m long) minerals show transitional to locally sharp contacts host migmatized rocks. Thin muscovite-rich veins assemblage muscovite, albite, quartz tourmaline are closely associated spatially. Variable...
Mössbauer spectra of 197Au in Cs2Au2Cl6 were studied at 1 bar (4.2 and 45 K) 68 kbar (2.1, 4.2, 25, 40, K). Further, Cs2AgAuCl6 31 AuI The pressure-induced changes the isomer shifts quadrupole splittings Cs2Au2Cl6, Cs2AgAuCl6, AuJ suggest a positive sign electric field gradient Au+ nuclei negative Au+3 nuclei, i.e., contrary to previous predictions. For Au+, 5d6s rather than 6s6p hybridization is proposed. Au3+ contribution 5d8 free ion configuration overrides from 5d6s6p2 hybrids. On this...
A building block approach has been used to prepare a new family of hexanuclear magnetic molecules Mn4Nb2, Fe4Nb2, and Co4Nb2 general formula {[MII(tmphen)2]4[NbIV(CN)8]2}·solv (M = Mn, Fe, Co; tmphen 3,4,7,8-tetramethyl-1,10-phenanthroline; solv MeOH and/or H2O). Mn4Nb2 exhibits magnetocaloric effect at temperatures close 1.8 K, Fe4Nb2 undergoes an incomplete gradual spin crossover photomagnetic response related light-induced excited state trapping.
As HTS technologies come of age, pharmaceutical companies are focusing increasingly on the quality their screening collections. Storage conditions and influence compound stability solubility debated intensely. At Novartis, a strategy was developed that is different to most other companies: (1) compounds unsuitable for storage in solution excluded by computational methods; (2) stored at 4 degrees C/20% relative humidity DMSO/water mixture avoid freeze-thaw cycles water uptake allow rapid...
Spin and valence states of the non‐heme iron heme cytochrome b 559 , as well their interactions with α‐tocopherol quinone (α‐TQ) in photosystem II (PSII) thylakoid membranes prepared from Chlamydomonas reinhardtii PSI − mutant have been studied using Mössbauer spectroscopy. Both atoms are low spin ferrous states. The Debye temperature is 194 K 182 K. treatment α‐TQ does not change but enhances covalence its bonds. oxidizes into high Fe 3+ state. A possible role electron flow through PSII discussed.
The crystal structures of two modifications (termed A and B ) 4-amidinoindanone guanylhydrazone (AIGH), 2-(4-amidino-1-indanylideneamino)guanidine, have been determined. Modification , for which single crystals were available, has treated in the usual manner. determination modification no was made on basis X-ray powder pattern ab initio packing calculations. It shown that it is possible to determine a routine manner structure polar moderately flexible molecule, can be specified as several...