Year 2016

• Halogen bonded polypseudorotaxanes based on a pillar[5]arene host

  Publication

  • K. Eichstaedt
  • B. Wicher
  • M. Gdaniec
  • T. Połoński

  - CRYSTENGCOMM - Year 2016

  Two crystalline supramolecular polypseudorotaxanes were obtained by combining permethylated pillar[5]arene as a macrocyclic wheel with 1,4-bis(1-imidazolyl)butane and 1,4-bis(iodoethynyl)benzene or 1,4-diiodo-1,3-butadiyne linked by C–I⋯N halogen bonds and creating a polyrotaxane axis. The resulting highly ordered supramolecular arrays were characterized by X-ray crystallography.

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• Supramolecular Synthesis Based on a Combination of Se···N Secondary Bonding Interactions with Hydrogen and Halogen Bonds

  Publication

  • K. Eichstaedt
  • A. Wasilewska
  • B. Wicher
  • M. Gdaniec
  • T. Połoński

  - CRYSTAL GROWTH & DESIGN - Year 2016

  Examination of the solid state structures of 2,1,3-benzoselenadiazole complexes with hydrogen or halogen bond donors has demonstrated that the 2,1,3-benzoselenadiazole molecules preferably form centrosymmetric dimers with use of [Se–N]2 supramolecular synthon, whereas the two remaining nitrogen atoms not involved in the [Se–N]2 supramolecular interactions can act as acceptors of hydrogen or halogen bonds. Cocrystallization of selenadiazoles...

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Year 2013

• Interplay of hydrogen bonding and aryl-perfluoroaryl interactions in construction of supramolecular aggregates

  Publication

  • K. Eichstaedt

  - Year 2013

  The stacking between aryl and perfluoroaryl units is an important class of the aromatic – aromatic interactions that has attracted rapidly growing interest in recent years. Continuing interest of our group in this subject it had been prepared three new complexes of pentafluorobenzoic acid with benzyl alcohol, 4-methylbenzyl alcohol and 4-tert-butylbenzyl alcohol and in the next step investigated their self-assembly modes by...

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• (R,R)-1-Acetyl-1'-(2,4,6-trinitrophenyl)-2,2'-bipyrrolidine

  Publication

  • K. Eichstaedt
  • T. Olszewska
  • M. Gdaniec

  - ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE - Year 2013

  (R,R)-1-Acetyl-1'-(2,4,6-trinitrophenyl)-2,2'-bipyrrolidine has been synthesized and its rentgenostructure has been determined. The structure of the title molecule, C16H19N5O7, is mainly determined by the steric effect of a bulky 2,4,6-trinitrophenyl group attached to the N atom of a pyrrolidine ring. Both pyrrolidine rings adopt an envelope conformation, with one of the methylene C atoms as the flap in each case, and the N-C-C-N...

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Year 2012

• Metody syntezy 2,2'-bipirolidyny

  Publication

  • K. Eichstaedt

  - Wiadomości Chemiczne - Year 2012

  Diaminy wicynalne należą do obszernej grupy związków posiadających dwie grupy aminowe przyłączone do sąsiednich atomów węgla. Są to substancje bardzo zróżnicowane pod względem budowy jak i właściwości chemicznych. Ugrupowanie 1,2-diaminowe obecne jest w wielu związkach wykazujących aktywność biologiczną. W syntezie organicznej 1,2- diaminy, głównie pochodne 1,2-diaminocykloheksanu, stanowią substraty w reakcjach prowadzących do...