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RESEARCH PRODUCT
Self-assembly mechanism based on charge density topological interaction energies
Bartosz ZarychtaChristopher G. GianopoulosChristopher G. GianopoulosBłażej DziukKrzysztof Ejsmontsubject
intermolecular interactions010405 organic chemistryChemistryHydrogen bondsupramolecular synthonsIntermolecular forceCharge densityAromaticityContext (language use)010402 general chemistryCondensed Matter PhysicsTopology01 natural sciences0104 chemical sciencestopological analysischemistry.chemical_compoundcharge densitySelf-assemblyTrimesic acidPhysical and Theoretical ChemistryHydratedescription
The packing interactions have been evaluated in the context of the self-assembly mechanism of crystal growth and also for its impacts on the aromaticity of the trimesate anion. The structure of ethylammonium trimesate hydrate (1) measured at 100 K and a charge density model, derived in part from theoretical structures, is reported. Theoretical structure factors were obtained from the geometry-optimized periodic wave function. The trimesic acid portion of 1 is fully deprotonated and participates in a variety hydrogen bonding motifs. Topological analysis of the charge density model reveals the most significant packing interactions and is then compared to a complementary analysis performed by the Hirshfeld surface method. The results presented herein demonstrate that in organic salt crystals the small structural motifs are most stable and once formed as stand-alone structures, may direct the self-assembly process. Moreover, when intermolecular interactions supported by the electrostatic forces are analyzed, the care must be taken with interpretation of the results of Hirshfeld surface analysis for organic salts crystals.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-12-04 | Structural Chemistry |