Adriatic NMR 2020



17th European Symposium on Organic Reactivity (ESOR 2019)


Hrvatsko kemijsko društvo

Broj posjeta:
Događanja na PMF-u
24. 02. 14:00 - 15:00, Kemijski odsjek, P1
Diplomski ispit Valentina Badurina
25. 02. 10:00 - 11:00, Kemijski odsjek, 225
Diplomski ispit: Petra Dičak
25. 02. 12:00 - 13:00, Kemijski odsjek, P2
Diplomski ispit: Hana Rimanić
25. 02. 13:00 - 14:00, Kemijski odsjek, 023
Diplomski ispit: Tonka Gašparac
26. 02. 11:00 - 12:00, Kemijski odsjek, 225
Diplomski ispit: Antonio Barišić
26. 02. 12:00 - 13:00, Kemijski odsjek, 222
Diplomski ispit: Snježana Županić
26. 02. 13:00 - 14:00, Kemijski odsjek, 304
Diplomski ispit: Petra Maleš
26. 02. 13:30 - 14:30, Kemijski odsjek, 225
Diplomski ispit: Bruno Pinević
26. 02. 15:00 - 16:00, Kemijski odsjek, 222
Diplomski ispit: Tin Miladinović
27. 02. 11:00 - 12:00, Kemijski odsjek, 304
Diplomski ispit: Ana-Marija Lulić
27. 02. 12:00 - 13:00, Kemijski odsjek, 304
Diplomski ispit: Gregor Talajić
27. 02. 12:30 - 13:30, Kemijski odsjek, dvora P1
Diplomski ispit: Franciska Grgić
27. 02. 14:00 - 15:00, Kemijski odsjek, 023
Diplomski ispit Adrijana Čavlović
27. 02. 14:30 - 16:30, Kemijski odsjek, A1
Obrana doktorske disertacije: Robert Katava
28. 02. 13:00 - 14:00, Kemijski odsjek, 023
Diplomski ispit Martina Jandrlić
28. 02. 14:00 - 15:00, Kemijski odsjek, 023
Diplomski ispit Josipa Hajduković
28. 02. 15:00 - 16:00, Kemijski odsjek, rtg-seminar (-030)
Diplomski ispit: Gabriela Lihtar
23. 8. 2019. u 15:40

Mihails Arhangelskis s Kemijskog fakulteta Sveučilišta u Varšavi održat će u sklopu Kolokvija Kemijskog odsjeka u petak 30. kolovoza predavanje pod naslovom:

Ab initio structure prediction of metal-organic frameworks.

Predavanje će se održati u predavaonici P1 (prizemlje zgrade Kemije, Horvatovac 102a) s početkom u 11:15 sati.

Metal-organic frameworks (MOFs) are microporous materials of emergent technological importance for gas storage and separation, catalysis, sensing devices and other advanced applications. Computational methods are becoming increasingly important for exploring structure-property relationships in MOF materials and providing tools for target-specific design of new generation materials.

The broad range of applications stems from the modular nature of MOFs which are constructed from metal nodes (individual atoms or clusters) interconnected by organic linkers. The large choice of available nodes and linkers leads to essentially infinite number of topologies and, ultimately, properties. The question is, how do we find the right combinations of metals and linkers to build MOFs for specific applications?

Currently, the most common answer is experimental screening, which is not an optimal solution due to high costs and excess chemical waste. Our aim is to optimise the design of new MOFs by utilising computational methods. We have developed a method for ab initio crystal structure prediction of MOFs, demonstrating that crystal structure of MOFs can be predicted solely based on the knowledge of chemical structure of nodes and linkers.

This presentation will outline our recent advances in using periodic density functional theory (DFT) calculations to characterizing and even predicting MOF structures. First, we will show how periodic DFT calculations can be used to explain the thermodynamic pathways observed in mechanochemically-induced topological transformations of MOFs, demonstrating that such reactions proceed towards thermodynamically most stable structures.

The talk will continue with a report of the computational screening of a previously not synthesized class of microporous materials based on the recently isolated pentazolate (pnz-) ligand. The energy landscapes for Zn(pnz)2 and Cd(pnz)2 frameworks were calculated, reliveving formation of several previously unreported topologies. Finally, energetic properties of putative pentazolate frameworks were evaluated.

Finally, the first example of a truly ab initio structure prediction will be presented, with examples from several MOF classes, including hexafluorosilicate, azolate, and carboxylate frameworks. In all cases, experimental structures were used to confirm and evaluate theoretical expectations, providing an important step forward in theoretical understanding as well as modelling of MOFs.

Vladimir Stilinović

Kemijski odsjek
Prirodoslovno-matematički fakultet

Sveučilište u Zagrebu

Horvatovac 102A
HR-10000 Zagreb

Tel. +385 1 4606 000 (centrala)

E-pošta: ko@chem.pmf.hr


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Sva prava pridržana. Kemijski odsjek Prirodoslovno-matematičkog fakulteta
Sveučilište u Zagrebu