Magdalena Wilk-Kozubek

• Ph. D.
• PostDoc Position at Stockholm University

This review article delves into the intriguing phenomenon of low-temperature thermochromism, whereby materials change color in response to temperature variations, with a particular focus on its applications in temperature-sensitive fields like medical storage. By closely examining thermochromic materials, this article highlights their potential to...

Novel temperature sensors with unique optical properties, based on 4-alkylbenzoic acid developers (CnBA, where n is the number of carbon atoms in the alkyl chain ranging from 4 to 6), which exhibit a liquid crystalline phase, and 6′-(diethylamino)-1′,2′-benzofluoran (BF) leuco dye are reported. The main aim of this work is to investigate how the mo...

We report a detailed analysis of both structural and spectroscopic properties of Nd3+-doped GdPO4 nano-powders obtained via various wet synthesis methods. This type of material may be useful in optoelectronic,...

LuPO4 in the form of nano-powders can find potential application in bio-imaging and luminescence thermometry. To enable development of functional materials there is a need to acquire basic information about the effect of morphology and grain size on spectroscopic properties. So, we investigated a series of Nd³⁺-doped LuPO4 nanoparticles prepared wi...

In this work, zinc oxide particles (ZnO NPs) green synthesis with the application of black tea extract (BT) is presented. A thorough investigation of the properties of the extract and the obtained materials was conducted by using Fourier transform infrared spectroscopy (FTIR), liquid chromatography-mass spectrometry (LC-MS), x-ray diffraction (XRD)...

In this study, simple and efficient synthetic routes to a family of uncommon group 4-zinc heterometallic alkoxides were developed. Single-source molecular precursors with the structures [Cp2TiZn(μ,η-OR)(THF)Cl2] (1), [Zr3Zn7(μ3-O)(μ3,η2-OR)3(μ-OH)3(μ,η2-OR)6(μ,η-OR)6Cl6] (2), and [Hf3Zn7(μ3-O)(μ3,η2-OR)3(μ-OH)3(μ,η2-OR)6(μ,η-OR)6Cl6] (3) were prepa...

Two new quaternary selenides of the α -TlSe structure type have been synthesized and characterized. Single crystal X-ray diffraction analysis has revealed that Tl 2 Ga 2 SnSe 6 crystallizes with space group I 4 /mmc , a = 8.095(1), c = 6.402(1) Å, with a refined composition of Tl 1−x Ga 1−y Sn y Se 2 ( x = y = 0.345(5)), Z = 4, R 1 = 0.028; wR 2 =...

Ionic liquids present a versatile, highly tunable class of soft functional materials. Aside from being low melting salts, they can be endowed with additional functionalities. In N-alkylimidazolium halides, which are a prominent class of ionic liquids (ILs), the imidazolium cation was linked via an ether-bridge to an azobenzene unit in order to obta...

A set of different open framework iron phosphates have been synthesized ionothermally using a task-specific ionic liquid, 1-butyl-4-methylpyridinium hexafluorophosphate, that acts in the synthesis as the reaction medium and mineralizer: (NH4)2Fe2(HPO4)(PO4)Cl2F (1) and K2Fe2(HPO4)(PO4)Cl2F (2) exhibit similar composition and closely related structu...

: 1,2,4-triazolium ionic liquids (ILs) allow to overcome the sometimes problematic acidity and low stability of the otherwise popular imidazolium ILs and open up new applications for ILs such as serving as emitter materials in organic lighting. Solvent-free direct quaternization of 1-methyl-1,2,4-triazole with n-alkyl methanesulfonates (alkyl = but...

An ionothermal syntheses study of transition metal phosphates using the ionic liquid 1-butyl-4-methylpyridinium hexafluorophosphate [C4mpy][PF6] yielded four new, different open framework manganese compounds, i.e. K2Mn3(HPO4)2(PO3F)F2 (1), (NH4)2Mn3(HPO4)2(PO3F)F2 (2), KMn3(H2PO4)(HPO4)2F2 (3), and (NH4)Mn3(H2PO4)(PO3F)2F2 (4). The obtained product...

Two isostructural series of lanthanide metal-organic frameworks denoted as SUMOF-7II (Ln) and SUMOF-7IIB (Ln) (Ln = La, Ce, Pr, Nd, Sm, Eu, and Gd) were synthesized using4,4′,4''-(pyridine-2,4,6-triyl)tris(benzoic acid) (H3L2) and a mixture of H3L2 and 4,4′,4′′-(benzene-1,3,5-triyl)tris(benzoic acid) (H3BTB) as linkers, respectively. Both series we...

Materials showing thermoelectric properties known as thermoelectrics can reversibly convert a temperature gradient into electricity. Since the vast majority of energy we use comes from thermal processes or creates thermal energy as waste energy, the search for materials able to adapt efficiently thermal energy is of extreme importance. The discover...

A microcrystalline carboxyl-functionalized imidazolium chloride, namely 1-carb­oxy­methyl-3-ethyl­imidazolium chloride, C7H11N2O2⁺·Cl⁻, has been synthesized and characterized by elemental analysis, attenuated total reflectance Fourier transform IR spectroscopy (ATR-FT-IR), single-crystal X-ray diffraction, thermal analysis (TGA/DSC), and photolumin...

Two borophosphates, (NH4)1–2xM1+x(H2O)2(BP2O8)·yH2O with M = Mn (I) and Co (II), synthesized hydrothermally crystallize in enantiomorphous space groups P6522 and P6122 with a = 9.6559(3) and 9.501(3) Å, c = 15.7939(6) and 15.582(4) Å, and V = 1275.3(1) and 1218.2(8) Å3 for I and II, respectively. Both compounds feature helical chains composed of ve...

Coordination polymers are constructed from two basic components, namely metal ions, or metal-ion clusters, and bridging organic ligands. Their structures may also contain other auxiliary components, such as blocking ligands, counter-ions and nonbonding guest or template mol­ecules. The choice or design of a suitable linker is essential. The new tit...

-OPEN ACCESS- (http://pubs.rsc.org/en/content/articlelanding/2017/mh/c6mh00468g#!divAbstract) A family of bis(trifluoromethanesulfonyl)amide-based ionic liquids of composition [RE5(C2H5-C3H3N2-CH2COO)16(H2O)8](Tf2N)15 (RE = Er, Ho, Tm; C3H3N2 ≡ imidazolium moiety) featuring the cationic, record quindecim {15+} charged pentanuclear rare earth (RE)-...

Three novel isomorphous coordination polymers with a general formula [M(HO3P–C5H4N–PO3H)2(H2O)2]n [MII = Co (1), Zn (2) and Cd (3)] have been synthesized and characterized by powder and single-crystal X-ray diffraction, vibrational spectroscopy (IR and Raman) and simultaneous thermal analysis (TG-DTA-MS). Crystal structure analyses of compounds 1-3...

4-Nitrobenzylphosphonic acid (1a) has been synthesized and structurally characterized by vibrational spectroscopy (IR and Raman) and single-crystal X-ray diffraction. Additionally, Hirshfeld surface analysis and computational methods have been used to compare the intermolecular interactions in the crystal structures of 1a and its carboxylic analogu...

The asymmetric unit of the title compound, 3C10H12N2²⁺·2C10H11N2⁺·8C6H5NO5P⁻, contains one and a half naphthalene-1,5-diaminium cations, in which the half-mol­ecule has inversion symmetry, one 5-amino­naphthalen-1-aminium cation and four hydrogen (5-carb­oxy­pyridin-3-yl)phosphon­ate anions. The crystal structure is layered and consists of hydrogen...

The rigid organic ligand (pyridine-3,5-di­yl)diphospho­nic acid has been used to create the title novel three-dimensional coordination polymer, [Ca(C5H6NO6P2)2(H2O)]n. The six-coordinate calcium ion is in a distorted octa­hedral environment, formed by five phospho­nate O atoms from five different (pyridin-1-ium-3,5-di­yl)diphospho­nate ligands, two...

Two different crystal forms of sodium 5-sulfoisophthalate monohydrate have been found and structurally characterized by X-ray diffraction and FT-IR spectroscopic methods. Polymorph I is monoclinic, P21/n, and polymorph II is triclinic, P1. The analysis of the crystal structures reveals that the connectivity patterns in both polymorphs are different...

Three pyridylphosphonic acids, 3-pyridylphosphonic acid 1, 5-(dihydroxyphosphoryl)nicotinic acid 2, and 3,5-pyridinediyldiphosphonic acid 3, were synthesized and structurally investigated by solid state FT-IR and single crystal X-ray diffraction methods. All compounds appear in zwitterionic forms in the solid state with a proton transferred from th...

The CoII ion in the title complex salt, [Co(H2O)6](C14H13O10P2)2·2H2O or [Co(H2O)6][H(C7H6O5P)2]·2H2O, resides on an inversion centre and exhibits an octa­hedral environment formed by six aqua ligands. Two unique acid residues share an H atom between their phosphonate groups, forming a complex monoanion with a very short (P)O⋯H⋯O(P) hydrogen bond o...