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Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
Lanthanide complexes as chiral probes exploiting circularly polarized luminescence
Rachel Carr1, Nicholas H Evans, David Parker
1Department of Chemistry, Durham University, UK.
Chemical Society Reviews
|August 17, 2012
Summary
New optical probes detect molecular chirality using circularly polarized luminescence (CPL). Lanthanide complexes offer ideal CPL spectroscopy properties, guiding the design of sensitive chiral detection tools.
Area of Science:
- Supramolecular Chemistry
- Photophysics
- Chiroptical Spectroscopy
Background:
- Circularly polarized luminescence (CPL) probes are crucial for detecting molecular chirality.
- Lanthanide complexes exhibit strong luminescence, making them suitable for CPL-based sensing.
- Understanding stereochemical factors is key to designing effective chiral probes.
Purpose of the Study:
- To define design criteria for lanthanide-based optical probes for local chirality detection.
- To explore how perturbations affect chiral lanthanide complexes.
- To investigate the use of CPL spectroscopy for chiral analysis.
Main Methods:
- Stereochemical analysis of lanthanide complexes.
- Development of optical probes based on circularly polarized light changes.
- Perturbation studies involving changes in complex constitution or non-covalent association.
- Analysis of complexes with enantiopure ligands, including dynamic helicity inversion.
Main Results:
- Established design principles for lanthanide CPL probes.
- Demonstrated that perturbations (constitutional or associative) can alter complex chirality.
- Showcased how enantiopure ligand complexes respond to changes via helicity inversion or coordination environment shifts.
- Validated the use of CPL spectroscopy for probing local chirality.
Conclusions:
- Lanthanide complexes are highly effective for CPL spectroscopy-based chiral detection.
- The study provides a framework for designing novel chiral optical probes.
- Understanding dynamic processes in chiral complexes is vital for sensing applications.
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