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doc. RNDr. Jan Řezáč, Ph.D.


I am computational chemist interested mainly in non-covalent interactions. More details about my work can be found at my personal website.

Selected papers

S66: A Well-balanced Database of Benchmark Interaction Energies Relevant to Biomolecular Structures
Jan Řezáč
Kevin Eugene Riley
Pavel Hobza
Journal of Chemical Theory and Computation 7 (8): 2427-2438 (2011).
With numerous new quantum chemistry methods being developed in recent years and the promise of even more new methods to be developed in the near future, it is clearly critical that highly accurate, well-balanced, reference data for many different atomic and molecular properties be available for the parametrization and validation of these methods. One area of research that is of particular importance in many areas of chemistry, biology, and material science is the study of noncovalent interactions. Because these interactions are often strongly influenced by correlation effects, it is necessary to use computationally expensive high-order wave function methods to describe them accurately. Here, we present a large new database of interaction energies calculated using an accurate CCSD(T)/CBS scheme. Data are presented for 66 molecular complexes, at their reference equilibrium geometries and at 8 points systematically exploring their dissociation curves; in total, the database contains 594 points: 66 at equilibrium geometries, and 528 in dissociation curves. The data set is designed to cover the most common types of noncovalent interactions in biomolecules, while keeping a balanced representation of dispersion and electrostatic contributions. The data set is therefore well suited for testing and development of methods applicable to bioorganic systems. In addition to the benchmark CCSD(T) results, we also provide decompositions of the interaction energies by means of DFT-SAPT calculations. The data set was used to test several correlated QM methods, including those parametrized specifically for noncovalent interactions. Among these, the SCS-MI-CCSD method outperforms all other tested methods, with a root-mean-square error of 0.08 kcal/mol for the S66 data set.

Recent papers

Impressive Enrichment of Semiempirical Quantum Mechanics-Based Scoring Function: HSP90 Protein with 4541 Inhibitors and Decoys
Saltuk Mustafa Eyrilmez
Cemal Köprülüoglu
Jan Řezáč
Pavel Hobza
ChemPhysChem 20 (21): 2759-2766 (2019).
Description of halogen bonding in semiempirical quantum-mechanical and self-consistent charge density-functional tight-binding methods
Jan Řezáč
Journal of Computational Chemistry 40 (17): 1633-1642 (2019).
Reparametrization of the COSMO Solvent Model for Semiempirical Methods PM6 and PM7
Kristian Kříž
Jan Řezáč
Journal of Chemical Information and Modeling 59 (1): 229-235 (2019).
Gating the electron transfer at a monocopper centre through the supramolecular coordination of water molecules within a protein chamber mimic
N. Le Poul
B. Colasson
G. Thiabaud
D. J. D. Fouque
C. Iacobucci
A. Memboeuf
B. Douziech
Jan Řezáč
T. Prange
A. de la Lande
O. Reinaud
Y. Le Mest
Chemical Science 9 (43): 8282-8290 (2018).