ArticleIUCrJ2015
Quantitative analysis of intermolecular interactions in orthorhombic rubrene.
Article in IUCrJ, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 129 papers.
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Who cites it
129 citing papers in PubMed.
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- Crystal structure, Hirshfeld surface analysis, DFT optimized mol-ecular structure and the mol-ecular docking studies of 1-[2-(cyano-sulfan-yl)acet-yl]-3-methyl-2,6-bis-(4-methyl-phen-yl)piperidin-4-one.Acta crystallographica. Section E, Crystallographic communications · 2024Article
- Crystal structure, Hirshfeld surface analysis, DFT and the mol-ecular docking studies of 3-(2-chloro-acet-yl)-2,4,6,8-tetra-phenyl-3,7-di-azabicyclo-[3.3.1]nonan-9-one.Acta crystallographica. Section E, Crystallographic communications · 2024Article
69 more citing papers are in PubMed but not listed here.
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Authors and funding
9 authors.
Funding
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Abstract
Rubrene is one of the most studied organic semiconductors to date due to its high charge carrier mobility which makes it a potentially applicable compound in modern electronic devices. Previous electronic device characterizations and first principles theoretical calculations assigned the semiconducting properties of rubrene to the presence of a large overlap of the extended π-conjugated core between molecules. We present here the electron density distribution in rubrene at 20 K and at 100 K obtained using a combination of high-resolution X-ray and neutron diffraction data. The topology of the electron density and energies of intermolecular interactions are studied quantitatively. Specifically, the presence of Cπ⋯Cπ interactions between neighbouring tetracene backbones of the rubrene molecules is experimentally confirmed from a topological analysis of the electron density, Non-Covalent Interaction (NCI) analysis and the calculated interaction energy of molecular dimers. A significant contribution to the lattice energy of the crystal is provided by H-H interactions. The electron density features of H-H bonding, and the interaction energy of molecular dimers connected by H-H interaction clearly demonstrate an importance of these weak interactions in the stabilization of the crystal structure. The quantitative nature of the intermolecular interactions is virtually unchanged between 20 K and 100 K suggesting that any changes in carrier transport at these low temperatures would have a different origin. The obtained experimental results are further supported by theoretical calculations.
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