Divide and Conquer ab initio semiclassical molecular dynamics for spectroscopic calculations of complex systems
Given the continuing revolution in "nano" and "bio" technologies, it is urgent for chemists to be able to carry out reliable quantum dynamics simulations of complex molecular systems. The goal of this ERC project named SEMICOMPLEX is to fill the gap between theory and experiment and provide the community with a user-friendly computational tool for nuclear spectra (IR, vibro-electronic, etc.) calculations of very complex systems. Present theoretical methodologies are hampered either by artificial nuclear potential interactions or by local potential perturbation assumptions. The semiclassical molecular dynamics method that I have been pioneering is not affected by these limitations because it is based on ab initio classical trajectories. The nuclear forces can be calculated by any electronic structure software and trajectories can explore the entire potential surface. The remaining challenge is to overcome the exponential scaling of computational power. We adopt a divide-and-conquer strategy to beat the curse of dimensionality. The new method will possibly allows chemists to have a more reliable spectral interpretation in a wider context up to the nanoscale. We are simulating several gas-phase molecules as well as pollutant photodegradation for environmental remediation. We are also looking into the vibro-electronic spectra of carcinogenic molecules adsorbed on TiO2 to better understand their route to photodegradation both by UV and visible light. We are reproducing the spectroscopic properties of molecular nano-texturing of titania films to understand their super-hydrophobic properties and their employment for outdoor cultural heritage preservation.
People
- Postdoctoral Fellows
- Riccardo Conte (2015-2022)
- Marco Cazzaniga (2017-2022)
- Chiara Aieta (2017-2022)
- Fabio Gabas (2015-2020)
- Jaime Suarez (2017-2019)
- Gianluca Bertaina (2017-2019)
- Marco Micciarelli (2016-2019)
- Max Buchholz (2017-2018)
- Ágnes Nóra Mahmoud (2015-2016)
- Huaqing Li (2015-2016)
- PhD Students
- Michele Gandolfi (2020-2023)
- Giovanni Di Liberto (2015-2018)
- Fabio Gabas (2015-2018)
People
- Postdoctoral Fellows
- Riccardo Conte (2015-2022)
- Marco Cazzaniga (2017-2022)
- Chiara Aieta (2017-2022)
- Fabio Gabas (2015-2020)
- Jaime Suarez (2017-2019)
- Gianluca Bertaina (2017-2019)
- Marco Micciarelli (2016-2019)
- Max Buchholz (2017-2018)
- Ágnes Nóra Mahmoud (2015-2016)
- Huaqing Li (2015-2016)
- PhD Students
- Michele Gandolfi (2020-2023)
- Giovanni Di Liberto (2015-2018)
- Fabio Gabas (2015-2018)
Publications
Publications
ERC Seminars
ERC Seminars
Prof. Dimitrii V. Shalashilin from University of Leeds (UK),
gave a seminar titled “Trajectory guided basis sets of Coherent States for quantum dynamics”
hr. 15.30, Aula G15, Settore Didattico Golgi
13rd April 2018
Prof. Matteo Tommasini from Dipartimento di Chimica, Materiale e Ingegneria Chimica Giulio Natta, Politecnico di Milano, gives a seminar titled "Vibrational fingerprints of molecular structure: the case of Polycyclic Aromatic Hydrocarbons"
hr. 11:00, Aula Montanari, Dipartimento di Chimica
28th February 2018
Prof. Chiara Castiglioni from Dipartimento di Chimica, Materiale e Ingegneria Chimica Giulio Natta, Politecnico di Milano, gives a seminar titled "Spettroscopia vibrazionale per la scienza dei materiali:
sinergie tra l’osservazione sperimentale e la modellazione teorica dello spettro"
hr. 11:00, Aula Bianchi, Dipartimento di Chimica
2nd February 2018
Dr. Frank Grossmann from Institut fuer Theoretische Physik, Technische Universitaet Dresden, gives a seminar titled "Semiclassical initial value representations: Basics and applications to quantum dissipation"
hr. 11:00, Aula Montanari, Dipartimento di Chimica
14th March 2017
Dr. Lorenzo Mino from University of Turin gives a seminar titled "Catalysis and photocatalysis on TiO2 nanoparticles: a surface science approach"
hr. 14:30, Aula 302, Settore Didattico Celoria
19th January 2017
Dr. Huaqing Li gives a seminar titled "Keep Dynamical Quantum Effect in Multi-dimensional MD"
hr. 14:30, Aula Bianchi, Dipartimento di Chimica
28th November 2016
Dr. Jaime Suarez gives a seminar titled "GridTDSE: Cartesian coordinate-based wave packet propagations in QMD"
hr. 14:30, Aula Bianchi, Dipartimento di Chimica
1st-10th April 2016
Professor Martin Karplus, Nobel Prize in Chemistry 2014, spent ten days in Milan hosted by our group and gave a lecture at the University of Milan.
Job Openings
Job Openings
The project is ended.