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Kenfack Tsobnang P, Ziki E, Siaka S, Yoda J, Kamal S, Bouraima A, Djifa Hounsi A, Wenger E, Bendeif EE, Lecomte C. Synthesis, structure and Hirshfeld surface analysis of 2-oxo-2 H-chromen-6-yl 4- tert-butyl-benzoate: work carried out as part of the AFRAMED project. Acta Crystallogr E Crystallogr Commun 2024; 80:106-109. [PMID: 38333131 PMCID: PMC10848970 DOI: 10.1107/s2056989023011052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 12/24/2023] [Indexed: 02/10/2024]
Abstract
In the title compound, C20H18O4, the dihedral angle between the 2H-chromen-2-one ring system and the phenyl ring is 89.12 (5)°. In the crystal, the mol-ecules are connected through C-H⋯O hydrogen bonds to generate [010] double chains that are reinforced by weak aromatic π-π stacking inter-actions. The unit-cell packing can be described as a tilted herringbone motif. The H⋯H, H⋯O/O⋯H, H⋯C/C⋯H and C⋯C contacts contribute 46.7, 24.2, 16.7 and 7.6%, respectively, to its Hirshfeld surface.
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Affiliation(s)
| | - Eric Ziki
- Physics Department, Faculty of Science of Structure of Matter and Technology, Université Félix Houphouet-Boigny, Abidjan, 08 BP 582 Abidjan, Cote d’Ivoire
| | - Soso Siaka
- Chemistry Department, Faculty of Science, University of Nazi BONI, 01 BP 1091 Bobo Dioulasso 01, Burkina Faso
| | - Jules Yoda
- Chemistry Department, Faculty of Science, University of Nazi BONI, 01 BP 1091 Bobo Dioulasso 01, Burkina Faso
- Department of Medicine, Traditional Pharmacopeias and Pharmacy, Institute for Health Sciences Research, 03 BP 7192 Ouagadougou 03, Burkina Faso
| | - Seham Kamal
- Physics Department, Faculty of Science, Cairo University, 12613 Giza, Egypt
| | - Adam Bouraima
- Chemistry Department, Faculty of Science, Masuku University of Science and Technology, Franceville, Gabon
| | - Ayi Djifa Hounsi
- Physics Department, Faculty of Science, University of Lomé, Togo
| | - Emmanuel Wenger
- CRM2, CNRS Université de Lorraine, Vandoeuvre-lès-Nancy CEDEX BP 70239, France
| | - El-Eulmi Bendeif
- CRM2, CNRS Université de Lorraine, Vandoeuvre-lès-Nancy CEDEX BP 70239, France
| | - Claude Lecomte
- CRM2, CNRS Université de Lorraine, Vandoeuvre-lès-Nancy CEDEX BP 70239, France
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Yin F, De J, Liu M, Huang H, Geng H, Yao J, Liao Q, Fu H. High-Performance Organic Laser Semiconductor Enabling Efficient Light-Emitting Transistors and Low-Threshold Microcavity Lasers. Nano Lett 2022; 22:5803-5809. [PMID: 35848711 DOI: 10.1021/acs.nanolett.2c01345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
An organic light-emitting transistor (OLET) is a candidate device architecture for developing electrically pumped organic solid-state lasers, but it remains a critical challenge because of the lack of organic semiconductors that simultaneously possess a high solid-state emission efficiency (Φs), a high and balanced ambipolar mobility (μh,e), and a large stimulated emission cross-section. Here, we designed a molecule of 4,4'-bis(2-dibenzothiophenyl-vinyl)-biphenyl (DBTVB) and prepared its ultrathin single-crystal microplates with herringbone packing arrangements, which achieve balanced mobilities of μh = 3.55 ± 0.5 and μe = 2.37 ± 0.5 cm2 V-1 s-1, a high Φs of 85 ± 3%, and striking low-threshold laser characteristics. Theoretical and experimental investigations reveal that a strong electronic coupling and a small reorganization energy ensure efficient charge transport; meanwhile, the exciton-vibration effect and negligible π-π orbital overlap give rise to highly emissive H-aggregates and facilitate laser emission. Furthermore, OLET-based DBTVB crystals offer an internal quantum efficiency approaching 100% and a record-high electroluminescence external quantum efficiency of 4.03%.
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Affiliation(s)
- Fan Yin
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P.R. China
| | - Jianbo De
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P.R. China
| | - Meihui Liu
- Beijing Key Laboratory for Optical Materials and Photonic Devices Department of Chemistry, Capital Normal University & Beijing Advanced Innovation Center for Imaging Theory and Technology, Beijing 100048, P. R. China
| | - Han Huang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P.R. China
| | - Hua Geng
- Beijing Key Laboratory for Optical Materials and Photonic Devices Department of Chemistry, Capital Normal University & Beijing Advanced Innovation Center for Imaging Theory and Technology, Beijing 100048, P. R. China
| | - Jiannian Yao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P.R. China
| | - Qing Liao
- Beijing Key Laboratory for Optical Materials and Photonic Devices Department of Chemistry, Capital Normal University & Beijing Advanced Innovation Center for Imaging Theory and Technology, Beijing 100048, P. R. China
| | - Hongbing Fu
- Beijing Key Laboratory for Optical Materials and Photonic Devices Department of Chemistry, Capital Normal University & Beijing Advanced Innovation Center for Imaging Theory and Technology, Beijing 100048, P. R. China
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Miclette Lamarche R, DeWolf C. Strong Headgroup Interactions Drive Highly Directional Growth and Unusual Phase Co-Existence in Self-Assembled Phenolic Films. ACS Appl Mater Interfaces 2019; 11:45354-45363. [PMID: 31710200 DOI: 10.1021/acsami.9b16958] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Self-assembled materials as surface coatings are used to confer functional properties to substrates, but such properties are highly dependent on molecular organization that can be controlled through tailoring the noncovalent interactions. For monomolecular films, it is well-known that strong, dipolar interactions can oppose line tension generating noncircular domain growth. While many surfactant films exhibit liquid crystalline arrangement of the alkyl chains, there are relatively few reports of crystalline headgroups. Here, we report the self-assembly of phenolic surfactants where the combination of hydrogen bonding and π-stacking leads to a herringbone arrangement of the headgroups, generating a molecular super-lattice that can be observed using grazing incidence X-ray diffraction; such an arrangement has been previously proposed for related phenolic systems but never experimentally observed. We also investigated using pH to modulate the intermolecular interactions and the response of the system in terms of molecular organization. The first hydroxyl deprotonation does not appear to impact the structure but has significant impact on the domain size and morphology. Higher pH generates both strong directional domain growth and a loss of the molecular lattice structure, attributed to a second deprotonation. In contrast, a shorter chain surfactant, lauryl gallate, forms a liquid expanded phase that can contract upon deprotonation. In the condensed phase, the deprotonation kinetics are unusually slow for which an internal charge re-organization is proposed. The slow kinetics leads to the co-existence of three distinct phases for a single component system over relatively long timescales and provides evidence of a liquid-mediated polymorphic transformation process in two-dimensional, soft-matter films. This work has implications for understanding the long-range ordering in aromatic self-assembled structures and the mechanisms underlying Langmuir monolayer polymorphism.
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Affiliation(s)
- Renaud Miclette Lamarche
- Department of Chemistry and Biochemistry and Centre for NanoScience Research , Concordia University , 7141 Sherbrooke St. West , Montreal H4B 1R6 , Quebec , Canada
| | - Christine DeWolf
- Department of Chemistry and Biochemistry and Centre for NanoScience Research , Concordia University , 7141 Sherbrooke St. West , Montreal H4B 1R6 , Quebec , Canada
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El-Hiti GA, Smith K, Hegazy AS, Alshammari MB, Kariuki BM. Crystal structure of 4-meth-oxy-quinazoline. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o1279. [PMID: 25553044 PMCID: PMC4257374 DOI: 10.1107/s1600536814025082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 11/15/2014] [Indexed: 06/04/2023]
Abstract
The title compound, C9H8N2O, is almost planar, with the C atom of the meth-oxy group deviating from the mean plane of the quinazoline ring system (r.m.s. deviation = 0.011 Å) by 0.068 (4) Å. In the crystal, mol-ecules form π-π stacks parallel to the b-axis direction [centroid-centroid separation = 3.5140 (18) Å], leading to a herringbone packing arrangement.
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Affiliation(s)
- Gamal A. El-Hiti
- Cornea Research Chair, Department of Optometry, College of Applied Medical Sciences, King Saud University, PO Box 10219, Riyadh 11433, Saudi Arabia
| | - Keith Smith
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, Wales
| | - Amany S. Hegazy
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, Wales
| | - Mohammed B. Alshammari
- Chemistry Department, College of Sciences and Humanities, Salman bin Abdulaziz University, PO Box 83, Al-Kharij 11942, Saudi Arabia
| | - Benson M. Kariuki
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, Wales
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Lenartowicz P, Makowski M, Zarychta B, Ejsmont K. Crystal structure of N-(tert-but-oxy-carbon-yl)phenyl-alanylde-hydro-alanine isopropyl ester (Boc-Phe-ΔAla-OiPr). Acta Crystallogr Sect E Struct Rep Online 2014; 70:599-602. [PMID: 25553003 PMCID: PMC4257372 DOI: 10.1107/s1600536814025197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 11/17/2014] [Indexed: 11/29/2022]
Abstract
In the crystal structure of the dehydrodipeptide (Boc-Phe-ΔAla-OiPr), the molecule has a trans configuration of the N-methylamide group. Its geometry is different from saturated peptides but is in excellent agreement with other dehydroalanine compounds. In the crystal, an N—H⋯O hydrogen bond links the molecules in a herringbone packing arrangement. In the title compound, the dehydrodipeptide (Boc–Phe–ΔAla–OiPr, C20H28N2O5), the molecule has a trans conformation of the N-methylamide group. The geometry of the dehydroalanine moiety is to some extent different from those usually found in simple peptides, indicating conjugation between the H2C=C group and the peptide bond. The bond angles around dehydroalanine have unusually high values due to the steric hindrance, the same interaction influencing the slight distortion from planarity of the dehydroalanine. The molecule is stabilized by intramolecular interactions between the isopropyl group and the N atoms of the peptide main chain. In the crystal, an N—H⋯O hydrogen bond links the molecules into ribbons, giving a herringbone head-to-head packing arrangement extending along the [100] direction. In the stacks, the molecules are linked by weak C—H⋯O hydrogen-bonding associations.
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Affiliation(s)
- Paweł Lenartowicz
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland
| | - Maciej Makowski
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland
| | - Bartosz Zarychta
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland
| | - Krzysztof Ejsmont
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland
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