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Updated: Sep 24, 2025
06:35
Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
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Stereochemical dominance in hierarchically formed helicates.
Marcel Schlottmann1, Tobias Krückel1, Markus Albrecht1
1Institut für Organische Chemie, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany. markus.albrecht@oc.rwth-aachen.de.
Chemical Communications (Cambridge, England)
|May 4, 2022
Summary
Sterically demanding chiral ligands can control helical compound stereochemistry, even in small amounts. This finding allows for evaluating the effectiveness of different chiral units in stereoinduction.
Area of Science:
- Coordination Chemistry
- Stereochemistry
- Supramolecular Chemistry
Background:
- Helical coordination compounds exhibit unique properties.
- Controlling the stereochemistry of these helical structures is crucial for their applications.
- Chiral ligands play a key role in inducing specific stereochemical outcomes.
Purpose of the Study:
- To investigate the competitive effects of different chiral ligands on the stereochemistry of hierarchically formed helical coordination compounds.
- To determine the influence of sterically demanding chiral units on chiral induction.
- To establish a method for evaluating the relative strength of stereoinduction by various chiral units.
Main Methods:
- Synthesis of helical coordination compounds using mixtures of chiral ligands.
- Analysis of the resulting helical structures to determine stereochemistry.
- Comparative analysis of chiral induction based on ligand composition.
Main Results:
- Sterically demanding chiral units were found to dominate the chiral induction of the helix.
- This dominance occurs even when the demanding chiral units are present as a minor species.
- The relative strength of stereoinduction for different chiral units can be quantitatively evaluated.
Conclusions:
- The stereochemical outcome of helical coordination compounds can be effectively controlled by the judicious choice of chiral ligands.
- Steric bulk is a critical factor in determining the dominant chiral influence.
- This study provides a framework for designing and synthesizing helical compounds with desired stereochemistry.
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