A5060572008- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Crystallography and molecular interactions
- Crystal structures of chemical compounds
- Metal-Organic Frameworks: Synthesis and Applications
- Metal complexes synthesis and properties
- Inorganic and Organometallic Chemistry
- Synthesis and Characterization of Heterocyclic Compounds
- Molecular Sensors and Ion Detection
- Organometallic Compounds Synthesis and Characterization
- Nonlinear Optical Materials Research
- Synthesis and biological activity
- Chemical Thermodynamics and Molecular Structure
- Machine Learning in Materials Science
- Inorganic Fluorides and Related Compounds
- Magnetism in coordination complexes
- Minerals Flotation and Separation Techniques
- Supramolecular Chemistry and Complexes
- Thermal and Kinetic Analysis
- Chemical Reaction Mechanisms
- Drug Solubulity and Delivery Systems
- Analytical Chemistry and Chromatography
- Aerogels and thermal insulation
- Building materials and conservation
- Hygrothermal properties of building materials
University of Zagreb
2013-2024
Abstract Crystalline coordination polymers tend to be brittle and inelastic, however, we now describe a family of such compounds that are capable displaying mechanical elasticity in response external pressure. The design approach successfully targets structural features critical for producing the desired output. elastic crystals all comprise 1D cadmium(II) halide polymeric chains with adjacent metal centres bridged by two ions resulting required stacking interactions short “4 Å”...
The mechanical adaptability of a family six one-dimensional crystalline coordination polymers (CPs) cadmium ([CdX2(3-X′py)2]n; 1: X = Br, X′ Cl, 2: I, 3: 4: 5: and 6: X, I) to applied external force was examined, plethora flexible responses noticed. While two the CPs (4 6) were slightly elastic, remaining four (1–3 5) presented variable plastic deformation; three these (1–3) displayed exceptional crystal flow, one (2) demonstrated unprecedented ductility metal–organic material. feature...
Abstract Crystalline coordination polymers tend to be brittle and inelastic, however, we now describe a family of such compounds that are capable displaying mechanical elasticity in response external pressure. The design approach successfully targets structural features critical for producing the desired output. elastic crystals all comprise 1D cadmium(II) halide polymeric chains with adjacent metal centres bridged by two ions resulting required stacking interactions short “4 Å”...
The advantages of microwave technology over conventionally conducted experiments are numerous. Some them reduction in reaction time, a higher degree process control, repeatability, and work safety. Microwave synthesis routes require complete description the experimental details, instrumentation, design program oven used experiments. In this work, microwave-assisted hydrothermal hematite (α-Fe2O3) particles from 0.1 M FeCl3 solution highly alkaline media with heating at continuous emission...
In order to develop transferable and practical avenues for the assembly of coordination complexes into architectures with specific dimensionality, a strategy utilizing ligands capable simultaneous metal self-complementary hydrogen bonding is presented. The three used, 2(1 H )-pyrazinone, 4(3 )-pyrimidinone )-quinazolinone, consistently deliver required synthetic vectors in series Cd II polymers, allowing reproducible supramolecular synthesis that insensitive different steric geometric...
A series of complexes HgX2(bzimtH2) and HgX2(bzimtH2)2 (X = Cl−, Br−, I−, SCN−; bzimtH2 benzo-1,3-imidazole-2-thione) was obtained by reaction the mercury(II) salts with benzo-1,3-imidazole-2-thione in appropriate molar ratio (1:1 or 1:2). Hg(bzimtH)2 deprotonation acetate (irrespective reactants). The were characterised chemical thermal analysis, IR, 1H, 13C NMR spectroscopy, some [HgX2(bzimtH2), X I− HgX2(bzimtH2)2, SCN−] X-ray single crystal diffractometry. 1H spectroscopic measurements...
Background: Nabumetone (NAB) is a poorly soluble nonsteroidal anti-inflammatory prodrug (BCS class II drug) whose solubility significantly improved by complexation with cyclodextrins (CDs). Methods: The solid complexes, in 1:1 molar ratio, were prepared mechanochemical activation grinding, using β-cyclodextrin (β-CD) and its derivatives, hydroxypropyl- sulfobutylether-β-cyclodextrin (HP-β-CD SBE-β-CD). was confirmed differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD),...
The Hg atom in the title monomeric complex, dichlorobis(3-imidazolium-2-thiolato-S)mercury(II), [HgCl2(C3H4N2S)2], is four-coordinate having an irregular tetrahedral geometry composed of two Cl atoms [Hg—Cl 2.622 (2) and 2.663 Å] thione S [Hg—S 2.445 2.462 Å]. monodentate ligand adopts a zwitterionic form exists as 3-imidazolium-2-thiolate ion. bond angle S1—Hg—S2 130.87 (8)° has greatest deviation from ideal geometry. Intermolecular hydrogen bonds between four N—H groups one [3.232 (8)...
The title compound, [Hg(C(4)H(4)N(2)S)(C(4)H(3)N(2)S)](2)[HgBr(4)], consists of [Hg(pymt)(pymtH)](+) complex cations (pymtH is pyrimidine-2-thione) lying across twofold rotation axes in space group Fddd, with linearly coordinated mercury at an Hg-S distance 2.357 (3) A, and [HgBr(4)](2-) anions sites 222 symmetry. Hg atom additionally by two N Br atoms, forming a 2+4 effective coordination sphere. protonated ligand connected via N-H.N hydrogen bonds to the neighbouring unprotonated ligand,...
A detailed comparison of two polytypic polymorphs bis-(2-aminopyrazine) di-iodocadmium(II), using a combination theory and experiment, reveals how the relative stabilities forms can be linked in very precise manner to subtle differences intermolecular interactions structures. versatile practical workflow for examining closely related is presented, physical properties are rationalized against details structural landscape that evolved during this investigation. The possible role relatively...
Three novel cadmium(II) coordination compounds, the dimeric [Cd(CH3COO)2(nia)2]2 (1), polymeric {[Cd(nia)4](ClO4)2}n (2), and monomeric [Cd(H2O)3(nia)3](ClO4)2·nia (3), were prepared in reactions of nicotinamide (pyridine-3-carboxamide, nia) with corresponding salts. All compounds characterized by elemental analyses, FT-IR spectroscopy, TGA/DTA, single crystal X-ray analysis. The impact anions (acetate, perchlorate) solvent used on dimensionality complexes environment was investigated....
The reaction of 1-methyl-1,3-imidazole-2-thione (meimtH) with mercury(II) iodide in methanol a 2:1 molar ratio resulted the formation single crystals title compound, [HgI2(C4H6N2S)2]. Hg atom is coordinated by two I [2.7809 (9) and 2.7999 (8) Å] thione S atoms [2.520 (3) 2.576 irregular tetrahedral coordination geometry. NH groups imidazole ring take part intra- intermolecular hydrogen bonds [N⋯I 3.596 3.611 Å, respectively] joining molecules into infinite chains parallel to z axis.
Five zinc(II) coordination compounds, [ZnCl2(isn)2] (1), [ZnBr2(isn)2] (2), [Zn(NO3)2(H2O)(isn)2] (3), [Zn(CH3COO)2(isn)]2 (4) and [Zn(isn)4(H2O)2](ClO4)2 (5) (isn = isonicotinamide), were prepared by the reactions of isonicotinamide (pyridine-4-carboxamide, isn) corresponding salts. Their crystal structures determined single-crystal X-ray diffraction method. The environment is tetrahedral in compounds containing small halide anions (chloride, bromide), 1 2. An expansion to octahedral...