caa a22 4500 605512728 CHVBK 20210128100657.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00894-015-2635-z doi (NATIONALLICENCE)springer-10.1007/s00894-015-2635-z Cysewski Piotr Department of Physical Chemistry, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950, Bydgoszcz, Poland aut Pressure-imposed changes of benzoic acid crystals [Elektronische Daten] [Piotr Cysewski] Structural and energetic properties of benzoic acid crystals at pressure elevated from ambient condition up to 2.21 GPa were characterized. The directly observed variations of cell parameters and consequently cell volume are associated with many other changes including energetic, geometric, and electronic characteristics. First of all the non-monotonous change of lattice energy are noticed with the rise of pressure since the increase of stabilization up to 1GPa is followed by systematic decrease of lattice energies after extending the hydrostatic compression. There is also an observed increase of C 2 2 (8) synthon stabilization interaction with increase of pressure. The lattice response rather than interaction within synthons are source of observed pressure-related trend of lattice energy changes. The energy decomposition analysis revealed that the total steric interactions determine the overall trend of lattice energy change with the rise of pressure. Besides geometric aromaticity index was used as a measure of geometric changes. Serious discrepancies were noticed between HOMA values computed with the use of experimental and optimized geometries of the ring. Even inclusion of uncertainties of experimental geometries related to limited precision of X-ray diffraction measurements does not cancel mentioned discrepancies. Although HOMA exhibit similar trends at modest pressures the diversity became surprisingly high at more extreme conditions. This might suggest limitations of periodic DFT computations at elevated pressures and the experimentally observed breaking of molecules at very high pressures will probably not be accounted properly in this approach. Also limitation of direct use of experimental geometries were highlighted. The Author(s), 2015 Aromaticity nationallicence Benzoic acid nationallicence Crystal nationallicence C 2 2 (8) synthon nationallicence High-pressure nationallicence HOMA nationallicence Lattice energy nationallicence Journal of Molecular Modeling Springer Berlin Heidelberg 21/4(2015-04-01), 1-11 1610-2940 21:4<1 2015 21 894 https://doi.org/10.1007/s00894-015-2635-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00894-015-2635-z text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Cysewski Piotr Department of Physical Chemistry, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950, Bydgoszcz, Poland aut NATIONALLICENCE 773 0- Journal of Molecular Modeling Springer Berlin Heidelberg 21/4(2015-04-01), 1-11 1610-2940 21:4<1 2015 21 894