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Structural Properties
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Ortho-Carborane-Derived Halogen-Bonded Sandwich Complexes.

Christoph J Vonnemann1, Elric Engelage1, Jas S Ward2

  • 1Fakultät für Biochemie und Chemie, Ruhr-Universität Bochum, Universitätsstraße 150, 44801, Bochum, Germany.

Chemistry (Weinheim an Der Bergstrasse, Germany)
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Summary
This summary is machine-generated.

This study explores halogen bonding using novel carborane receptors. Solid-state structures reveal rare octahedral coordination of halide ions by two tridentate receptors, expanding understanding of halogen bonding catalysts.

Keywords:
anion bindinganion recognitioncrystallographyhalogen bondingortho‐carboranes

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Area of Science:

  • Supramolecular Chemistry
  • Organometallic Chemistry
  • Crystallography

Background:

  • Multidentate halogen-bonding receptors based on C-iodinated ortho-carborane moieties were previously introduced.
  • Solution studies indicated a secondary binding event for halide guests at sub-stoichiometric concentrations.

Purpose of the Study:

  • To systematically evaluate the halogen-bonding capacities of these receptors in the solid-state.
  • To investigate the coordination behavior of halide ions with the carborane-based receptors.

Main Methods:

  • Co-crystallization of halide guests with the carborane-based receptors.
  • X-ray diffraction analysis to determine solid-state structures.

Main Results:

  • Obtained solid-state structures of halide-receptor complexes.
  • Identified two rare examples of octahedral coordination of a halide ion by a pair of tridentate receptors.

Conclusions:

  • The study confirms and expands upon the halogen-bonding capabilities of carborane-based receptors in the solid state.
  • The findings highlight the potential of these receptors as catalysts and in supramolecular assembly.