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|Title:||A pi-stacked phenylacetylene dimer|
|Publisher:||ROYAL SOC CHEMISTRY|
|Citation:||PHYSICAL CHEMISTRY CHEMICAL PHYSICS,13(37)16706-16712|
|Abstract:||The structure of the phenylacetylene-dimer has been elucidated using IR-UV double resonance spectroscopy in combination with high level ab initio calculations at the CCSD(T)/CBS level. The IR spectra in the acetylenic and the aromatic C-H stretching regions indicate that the two phenylacetylene moieties are in identical environments and very similar to the phenylacetylene monomer. Calculated stabilization energies and the free energies at the CCSD(T)/CBS level favor the formation of an anti-parallel pi-stacked structure. The DFT-SAPT energy decomposition analysis points out that the anti-parallel pi-stacked structure maximizes electrostatic as well as the dispersion components of energy. The observed IR spectra are consistent with the anti-parallel pi-stacked structure.|
|Appears in Collections:||Article|
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