Scientific Results

Non-linear optical properties of molecular systems under high static pressures

Year: 2014

Authors: Citroni M., Fanetti S., Foggi P., Bini R.

Autors Affiliation: LENS-European Laboratory for Non-Linear Spectroscopy, via N. Carrara 1, 50019 Sesto F.no (FI), Italy; Dipartimento di Chimica, University of Florence, via della Lastruccia 3, 50019 Sesto F.no (FI), Italy; Dipartimento di Chimica, University of Perugia, Via Elce di sotto 8, I-06123 Perugia, Italy; INO-CNR (U.o. LENS), via N. Carrara 1, 50019 Sesto F.no (FI), Italy

Abstract: Applied static pressure can largely modify the structure and dynamics of molecular systems, with consequences on their optical properties and chemical stability. When photochemical effects are exploited in conjunction with the structural and dynamical conditions attained at high density, chemical reactivity may become highly selective and efficient, yielding technologically attractive products. Non-linear optical spectroscopies are a powerful tool to investigate molecular energetics and dynamics, and thus unveil key aspects of the chemical reactivity at a molecular level. Their application to high-pressure samples is experimentally challenging, mainly because of the small sample dimensions and the non-linear effects generated in the anvil materials. In this paper we review the main results on the behavior of electronic states at high pressure, obtained by non-linear optical techniques, discussing the relationship between pressure-induced structural modifications and chemical reactivity, and the state of the art of ongoing research.

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KeyWords: Chemical modification; Chemical stability; Condensed matter physics; High pressure effects; High pressure engineering, Molecular systems; Non-linear optical; Non-linear optical properties; Nonlinear effect; Photochemical effect; State of the art; Structural modifications; Structure and dynamics, Optical properties
DOI: 10.1088/1742-6596/500/2/022003

Citations: 3
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