The application of an external pressure is shown to be a powerful method to tune the dynamics, the structural and electronic properties and the reactivity of molecular systems, that can be drastically modified from room conditions up to achieve properties that are peculiar of the dense state. The application of state of art frequency and time resolved spectroscopic techniques presented in this work in a perfect synergy with the technology of ultra-high pressure devices to access the GPa range of pressure, is demonstrated to be very reliable in the description of the aforementioned phenomena. Within them, the two photon induced fluorescence spectroscopy using pulses in the picosecond scale and the time-resolved transient infrared spectroscopy in the femtosecond time-scale, the latter applied here to high pressure studies for the first time, have to be mentioned for the very remarkable information that are able to provide, concerning the electronic structure and the ultra-fast dynamics, respectively.

Structure and reactivity of model molecules under pressure by non-linear spectroscopy / Samuele Fanetti. - (2014).

Structure and reactivity of model molecules under pressure by non-linear spectroscopy

FANETTI, SAMUELE
2014

Abstract

The application of an external pressure is shown to be a powerful method to tune the dynamics, the structural and electronic properties and the reactivity of molecular systems, that can be drastically modified from room conditions up to achieve properties that are peculiar of the dense state. The application of state of art frequency and time resolved spectroscopic techniques presented in this work in a perfect synergy with the technology of ultra-high pressure devices to access the GPa range of pressure, is demonstrated to be very reliable in the description of the aforementioned phenomena. Within them, the two photon induced fluorescence spectroscopy using pulses in the picosecond scale and the time-resolved transient infrared spectroscopy in the femtosecond time-scale, the latter applied here to high pressure studies for the first time, have to be mentioned for the very remarkable information that are able to provide, concerning the electronic structure and the ultra-fast dynamics, respectively.
2014
Roberto Bini
ITALIA
Samuele Fanetti
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/850099
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