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Updated: Jul 16, 2026

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Published on: August 18, 2017
Renaissance in chiroptical spectroscopic methods for molecular structure determination.
1Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, USA. Prasad.L.Polavarapu@vanderbilt.edu
Chiroptical spectroscopy methods like optical rotatory dispersion (ORD), electronic circular dichroism (ECD), vibrational circular dichroism (VCD), and vibrational Raman optical activity (VROA) are gaining new interest. Quantum mechanical predictions enhance their use for determining chiral molecule structures.
Area of Science:
- Spectroscopy
- Chiroptical methods
- Quantum chemistry
Background:
- Optical rotatory dispersion (ORD) and electronic circular dichroism (ECD) are established chiroptical techniques.
- Vibrational circular dichroism (VCD) and vibrational Raman optical activity (VROA) are newer methods for chiral molecule analysis.
Purpose of the Study:
- To review recent advancements in four key chiroptical spectroscopic methods.
- To highlight the role of quantum mechanical calculations in predicting spectral data.
- To showcase synergistic applications of multiple methods for structural elucidation.
Main Methods:
- Review of optical rotatory dispersion (ORD) and electronic circular dichroism (ECD).
- Analysis of vibrational circular dichroism (VCD) and vibrational Raman optical activity (VROA).
- Application of quantum mechanical (QM) methods for spectral prediction.
Main Results:
- Quantum mechanical methods are increasingly vital for predicting ORD, ECD, VCD, and VROA spectra.
- These computational tools are revitalizing interest and research in chiroptical spectroscopy.
- Combined application of multiple chiroptical techniques provides robust structural confirmation.
Conclusions:
- Chiroptical spectroscopy, aided by QM predictions, offers powerful tools for determining absolute configuration and conformation of chiral molecules.
- The synergy of ORD, ECD, VCD, and VROA enhances the reliability of structural information.
- Advancements in computational methods are driving innovation and broader adoption in chiral analysis.
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