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Updated: Aug 11, 2026

Preparation of a Corannulene-functionalized Hexahelicene by Copper(I)-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
Coarse-grained interaction potentials for polyaromatic hydrocarbons
O A von Lilienfeld1, Denis Andrienko
1Department of Chemistry, New York University, New York, New York 10003, USA. ovt203@nyu.edu
Density-functional theory accurately predicts polyaromatic hydrocarbon interactions using nonlocal corrections. This research enables coarse-grained potentials for studying liquid-crystal phases of macromolecules.
Area of Science:
- Computational chemistry
- Materials science
- Condensed matter physics
Background:
- Polyaromatic hydrocarbons (PAHs) are crucial in materials science.
- Understanding pi-pi stacking interactions is key for predicting material properties.
- Accurate theoretical models are needed for large PAH systems.
Purpose of the Study:
- To investigate the interaction energies of polyaromatic hydrocarbons using Kohn-Sham (KS) density-functional theory.
- To evaluate the performance of various exchange-correlation functionals.
- To develop parameters for coarse-grained potentials for liquid-crystalline mesophases.
Main Methods:
- Kohn-Sham (KS) density-functional theory calculations.
- Analysis of potential-energy curves for pi-pi stacking hexabenzocoronene (hbc) dimers.
- Inclusion of nonlocal, atom-centered corrections to the KS Hamiltonian.
Main Results:
- Pure local density and generalized gradient approximation functionals provide incorrect predictions.
- Nonlocal corrections enable quantitative predictions of PAH interactions.
- Computed potential-energy surfaces yield parameters for coarse-grained potentials.
Conclusions:
- Accurate modeling of PAH interactions requires advanced density-functional theory methods.
- The developed coarse-grained potentials can simulate discotic liquid-crystalline mesophases.
- This work advances the understanding of large polyaromatic macromolecule behavior.
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