Abstract
Chiroptical responses have been an essential tool over the last decades for chemical structural elucidation due to their exceptional sensitivity to geometry and intermolecular interactions. In recent times, there has been an increasing interest in the search for more efficient sensing by the rational design of tailored chiroptical systems. In this review article, advances made in chiroptical systems towards their implementation in sensing applications are summarized. Strategies to generate chiroptical responses are illustrated. Theoretical approaches to assist in the design of these systems are discussed. The development of efficient chiroptical reporters in different states of matter, essential for the implementation in sensing devises, is reviewed. In the last part, remarkable examples of chiroptical sensing applications are highlighted.
Highlights
The concepts symmetry have become a prominent topictopic as scientists have conceptsrelated relatedtotomirror-image mirror-image symmetry have become a prominent as scientists made progress in the in structural determination of three-dimensional (3D) objects from both atomic have made progress the structural determination of three-dimensional (3D) objects from both and molecular levels
It is considered as insightful probe of the UV-Vis chromophore in order to produce a chiroptical response, in the case of VCD each 3N-6 normal structure and behavior of biomolecules in aqueous solution [13,14]
As in the case of exciton coupling between two independent chromophores, the prediction of the chiroptical spectrum for these systems can be performed by the following steps: i) identification of the chromophores originating the chiroptical responses, ii) using group theory, obtain the symmetry-based irreduible representations to determine the allowed transitions, iii) considering the relative orientation between the chromophores, and using the Davydovs equation, determine the energy differene between the different transitions. iv) with the geometric parametes, predict the electronic and magnetic dipole moment of each transition, and consequantly the rotary strength
Summary
The concepts symmetry have become a prominent topictopic as scientists have conceptsrelated relatedtotomirror-image mirror-image symmetry have become a prominent as scientists made progress in the in structural determination of three-dimensional (3D) objects from both atomic have made progress the structural determination of three-dimensional (3D) objects from both and molecular levels. Circularly polarized light can be right-handed or left-handed, referred to as right circularly polarized light light (R-CPL) These chiral waves can be generated by the summation of two perpendicular, linearly polarized lights. These summation two perpendicular, with the same amplitude and frequency, yet, exhibiting π/2 phase difference. The intent of this review is to provide the reader with a general overview of the key aspects to be taken into consideration when developing a chiroptical system for sensing. It starts with an illustrative description of the most commonly used strategies for the generation of chiroptical responses. The intent review is to the reader with a general overview of the key aspects to be
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