Publications by authors named "Katarzyna Marta Stadnicka"
Article Synopsis
- * The study presents the crystal structure of N-tosyl-L-proline (TPOH) benzene hemisolvate, revealing a unique cyclic dimer structure formed by strong hydrogen bonds between carboxylic acid molecules.
- * Characterization methods like X-ray diffraction and NMR spectroscopy confirm the dimer formation and its packing with benzene solvent molecules, with a similar disordered dimeric structure found in only a few previous studies according to the Cambridge Structural Database.
Article Synopsis
- - The study explores how the color of the organic material tyraminium violurate can be changed by manipulating its environment (solvatochromic) and different crystal forms (crystallochromic), which exhibit a significant color shift (192 nm) from yellow to dark violet.
- - Tyraminium violurate crystallizes in two forms: red crystals (form I) from water and violet crystals (form II) from methanol, with form I undergoing phase transformations upon heating that also change color.
- - Advanced techniques, including UV-Vis spectroscopy and theoretical calculations, help explain the optical properties and color origins of these materials, highlighting form II's remarkable birefringence and high refractive index.