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Updated: Jun 16, 2025
07:07
Synthetic Methodology for Asymmetric Ferrocene Derived Bio-conjugate Systems via Solid Phase Resin-based Methodology
Published on: March 12, 2015
9.7K
Towards building blocks for metallosupramolecular structures: non-symmetrically-functionalised ferrocenyl compounds.
William D J Tremlett1, James D Crowley2, L James Wright1
1School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand. c.hartinger@auckland.ac.nz.
Dalton Transactions (Cambridge, England : 2003)
|August 19, 2024
Summary
This study introduces novel non-symmetrically functionalized ferrocenyl ligands for metallosupramolecular architectures. These ligands enable stimulus-responsive shape and function changes, offering new possibilities in molecular assembly.
Area of Science:
- Supramolecular Chemistry
- Organometallic Chemistry
- Materials Science
Background:
- Metallosupramolecular architectures are versatile due to self-assembly and stimulus responsiveness.
- Ferrocenyl (Fc) ligands offer flexibility but often lack asymmetry.
- Existing Fc-based structures typically use symmetrically substituted cyclopentadienyl (Cp) rings.
Purpose of the Study:
- To synthesize and characterize novel non-symmetrically functionalized ferrocenyl ligands.
- To incorporate dissimilar donor groups (N,N' and NHC) for controlled coordination.
- To investigate stimulus-induced opening/closing mechanisms in metallosupramolecular structures.
Main Methods:
- Synthesis and characterization of new ferrocenyl ligands.
- Coordination studies with [Ru(η⁶-p-cymene)]²⁺.
- Nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry.
- Density functional theory (DFT) calculations.
Main Results:
- Successful synthesis of non-symmetrically functionalized Fc-based ligands.
- Ligands coordinated to ruthenium in a mixture of bi- and tridentate fashions.
- DFT calculations revealed a stable *syn* conformation driven by H-bonding and π-interactions.
- Evidence suggests potential for stimulus-induced ligand dissociation/association.
Conclusions:
- Novel non-symmetrically functionalized ferrocenyl ligands were developed.
- These ligands exhibit unique coordination behavior and conformational preferences.
- The findings pave the way for designing advanced stimulus-responsive metallosupramolecular systems.
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