A5023247528- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Perovskite Materials and Applications
- Solid-state spectroscopy and crystallography
- Organic and Molecular Conductors Research
- Crystallography and molecular interactions
- Nonlinear Optical Materials Research
- Crystal Structures and Properties
- Inorganic Chemistry and Materials
- Magnetism in coordination complexes
- Luminescence Properties of Advanced Materials
- Organometallic Compounds Synthesis and Characterization
- Crystal structures of chemical compounds
- Chemical Synthesis and Characterization
- Electromagnetic wave absorption materials
- Metal-Organic Frameworks: Synthesis and Applications
- Phenothiazines and Benzothiazines Synthesis and Activities
- Analytical Chemistry and Chromatography
- Clay minerals and soil interactions
- Atomic and Subatomic Physics Research
- Photorefractive and Nonlinear Optics
- Quantum, superfluid, helium dynamics
- Nuclear Physics and Applications
- Molecular spectroscopy and chirality
- Ferroelectric and Piezoelectric Materials
University of Wrocław
2014-2024
Faculty (United Kingdom)
2017-2020
Joint Institute for Nuclear Research
2018-2020
Halogenoantimonates(<sc>iii</sc>) and halogenobismuthates(<sc>iii</sc>) are a highly versatile class of organic–inorganic hybrid materials, applicable in optoelectronics switchable dielectric devices.
A new organic-inorganic hybrid, AZEMnBr, has been synthesized and characterized. The thermal differential scanning calorimetry, analysis, thermogravimetric analyses indicate one structural phase transition (PT) at 346 349 K, on cooling heating, respectively. AZEMnBr crystallizes 365 K in the orthorhombic, Pnma, structure, which transforms to monoclinic P21/n 200 K. Due X-ray diffraction studies, anionic MnBr42- moiety is discrete. azetidinium cations show dynamical disorder high-temperature...
A new ferroelectric 1-D perovskite (C 3 H 8 N)[CdCl ] was synthesized and characterized.
Ferroelastic phase transition in novel HOIP crystal with dielectric switchable properties.
Highly stable ferroelectrics with reversible high-temperature phase transitions and switchable nonlinear optical behaviour.
Herein, we have synthesised and characterised a novel organic-inorganic hybrid crystal, [CH3NH3]2KCr(CN)6 (MACr). Thermal analysis (DSC, TGA-DTA) indicates one structural phase transition (PT) at 450 K. The modified equation of the tolerance factor, t, was used to estimate theoretical PT temperature for crystal with Mn(iii). According X-ray diffraction experiment, in low-temperature (LT) phase, solid-to-solid is described by monoclinic space group C2/c. creation ferroelastic domain structure...
The preparation of materials featuring more than one ferroelectric phase represents a promising strategy for controlling electrical properties arising from spontaneous polarization, since it offers an added advantage temperature-dependent toggling between two different states. Here, we report on the discovery unique ferroelectric-ferroelectric transition in diisopropylammonium tetrabromocadmate (DPAC, (C6H16N)2[CdBr4]) with Tc value 244 K, which is continuous nature. Both phases crystallize...
The crystal structure has been determined for (CH<sub>3</sub>NH<sub>3</sub>)<sub>2</sub>[KCo(CN)<sub>6</sub>] at temperatures 100 and 443 K.
A description of the thermal, structural, <sup>1</sup>H NMR, electric and optical properties novel organic–inorganic hybrids.
Here we report the dynamics of organic cations as guest molecules in a perovskite host-framework.
A novel photoluminescent–ferroelectric crystal of (C<sub>4</sub>H<sub>10</sub>N)<sub>2</sub>[Cd<sub>2</sub>I<sub>6</sub>] (<bold>PCdI</bold>) has been obtained and characterized.
A hydrogen-bonded metallocyanide-based (AZE)2(H3O)[Co(CN)6] framework was obtained by introducing a hydronium cation to the A2B(1)B(2)CN6-type structure. Simple K+/H3O+ substitution exchange three-dimensional structure of double-perovskite into two-dimensional layers containing open inorganic cages with strongly discontinuous improper ferroelastic phase transition.
The family of Mn-based organic–inorganic hybrids has greatly expanded due to their advantages in applications. They also show superior bright and size-tunable photoluminescence can be considered a perfect alternative toxic lead-based compounds. In this work, we present the detailed structural, optical, electrical characterization ([(NH3CH2CH2)3NH])2[MnBr5]Br5. title compound exhibits unique type inorganic arrangement created by trigonal bipyramids. It crystallizes noncentrosymmetric space...
Here we report the dynamics of organic cations as guest molecules in novel perovskite host framework. The switchable crystals from coordination family [CH3C(NH2)2]2[KB″(CN)6] were constructed by employing acetamidinium (ACE = [CH3C(NH2)2]) A-site and B″: Cr3+, Fe3+, Co3+ inorganic cage. molecular motion ACE+ well effect trivalent metallic cation type on two-step transitions studied using a combination experimental methods: (i) X-ray diffraction experiments, (ii) thermal analysis, (iii)...
Two novel organic–inorganic hybrid crystals (C 3 H 8 N) 2 [KCr(CN) 6 ] ( AZECr ) and [KFe(CN) AZEFe were synthesized characterized.
This study investigates lead-free organic-inorganic hybrids (C
Due to a high increase in electromagnetic pollution, the protection from non-ionizing radiation (EMR) represents an important problem of contemporary environmental science. We are searching for natural materials with potential EMR screening. have discovered that hydro-halloysite has interesting properties as absorber. Unfortunately, it is very unstable material. Drying even short period time leads loss desired properties. In paper, we demonstrated intercalation halloysite (the process...
The crystal and molecular structure of the 2,3,5,6-tetramethylpyrazine (TMP) complex with 2,5-dibromo-3,6-dihydroxy-p-quinone (bromanilic acid, BRA) has been studied results are compared TMP CLA (2,5-dichloro-3,6-dihydroxy-p-quinone (chloranilic CLA) complex. X-ray BRA indicates formation dimeric units, in which two BRA– anions connected by O–H···O (2.646(2) Å) hydrogen bonds, whereas cations joined together strong N+–H···O– (2.657(2) bonds. analyzed terms both methyl group surroundings...
Structural phase transition and dielectric anomalies measured in pure mixed crystals (<bold>TrMAFexCo1−x</bold>).
Using the DSC method, structural phase transitions (PTs) have been found at 165 and 219 K for 4,4′-di-<italic>tert</italic>-butyl-2,2′-bipyridyl (<bold>dtBBP</bold>), whereas its complex with iodanilic acid (<bold>dtBBP·IA</bold>) PT is 331 K.
The simple organic crystal formamidinium iodide (FAI) appeared to be a novel semiconducting material in wide temperature range. electric properties of FAI and the role cation (FA+) molecular mechanism solid-to-solid phase transitions (at 345 K (III → II) 388 (II I)) were analysed. creation ferroelastic domain structure phases III II was proved on basis observation under polarizing microscope. Moreover, arrangement dipolar FA+ studied by 1H NMR (spin-lattice relaxation time) vibrational...
Halobismuthates(III) and haloantimonates(III) with the R3MX6 chemical composition create a new broadly unexplored class of ferroelectric compounds. In this paper, we report haloantimonate(III) comprising an aromatic (1,2,4-triazolium) cation, i.e., (C2N3H4)3[SbBr6] (TBA). Temperature-resolved structural spectroscopic studies indicate that TBA undergoes two solid-solid phase transitions between tetragonal [P42/m (I)] monoclinic [P21/n (II) P21 (III)] phases. experiences...
The single-crystals of mixed (C<sub>3</sub>H<sub>5</sub>N<sub>2</sub>)<sub>2</sub>[KFe<sub>x</sub>Co<sub>1−x</sub>(CN)<sub>6</sub>] crystals, with different ratios <italic>x</italic> = 0, 0.29, 0.42, 0.51, 0.63, 0.70, 0.85, and 1, have been grown from aqueous solutions.
The molecular complexes of the pyrazine derivatives with anilic acids were analyzed in terms structure molecules, vibrational spectra, INS,<sup>1</sup>HNMR and theoretical approach.