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Roman M, Baranska M. Vibrational and theoretical study of selected diacetylenes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 115:493-503. [PMID: 23871977 DOI: 10.1016/j.saa.2013.06.070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 06/12/2013] [Accepted: 06/19/2013] [Indexed: 06/02/2023]
Abstract
Six commonly used disubstituted diacetylenes with short side-chains (RCCCCR, where R=CH2OH, CH2OPh, C(CH3)2OH, C(CH3)3, Si(CH3)3, and Ph) were analyzed using vibrational spectroscopy and quantum-chemical calculations to shed new light on structural and spectroscopic properties of these compounds. Prior to that the conformational analysis of diacetylenes was performed to search the Potential Energy Surface for low-energy minima. Theoretical investigations were followed by the potential energy distribution (PED) analysis to gain deeper insight into FT-Raman and FT-IR spectra that, in some cases, were recorded for the first time for the studied compounds. The analysis was focused mainly on spectral features of the diacetylene system sensitive to the substitution. Shifts of the characteristic bands and changes in bond lengths were observed when changing the substituent. Furthermore, Fermi resonance was observed in the vibrational spectra of some diacetylenes. FT-IR spectra were measured by using two methods, i.e. transmission (with KBr substrate) and Attenuated Total Reflection (ATR), showing the latter adequate and fast tool for IR measurements of diacetylenes. Additionally, Surface Enhanced Raman Spectroscopy (SERS) was applied for phenyl derivative for the first time to study its interaction with metallic nanoparticles that seems to be perpendicular.
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Affiliation(s)
- Maciej Roman
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland.
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Biniek L, Leclerc N, Heiser T, Bechara R, Brinkmann M. Large Scale Alignment and Charge Transport Anisotropy of pBTTT Films Oriented by High Temperature Rubbing. Macromolecules 2013. [DOI: 10.1021/ma400516d] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Laure Biniek
- Institut Charles Sadron, CNRS—Université de Strasbourg, 23 rue
du Loess, Strasbourg 67034, France
| | - Nicolas Leclerc
- Institut de Chimie et Procédés
pour l’Energie, l’Environnement et la Santé,
UMR 7515, ECPM, 25 rue Becquerel, 67087
Strasbourg Cedex2, France
| | - Thomas Heiser
- Laboratoire ICube, Département
ESSP, CNRS—Université de Strasbourg, 23 rue du Loess, Strasbourg, 67034, France
| | - Rony Bechara
- Laboratoire ICube, Département
ESSP, CNRS—Université de Strasbourg, 23 rue du Loess, Strasbourg, 67034, France
| | - Martin Brinkmann
- Institut Charles Sadron, CNRS—Université de Strasbourg, 23 rue
du Loess, Strasbourg 67034, France
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Drummy LF, Miska PK, Martin DC. Crystal Structure of and Defects in the Pentacene Thin Film Phase. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-734-a2.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aromatic hydrocarbon pentacene is currently under investigation for use as the active layer in electronic devices such as thin film field effect transistors. We have used X-Ray Diffraction (XRD), Electron Diffraction (ED), Low Voltage Electron Microscopy (LVEM), High Resolution Electron Microscopy (HREM) and molecular modeling to investigate the thin film phase of pentacene. We will report the orthorhombic symmetry and lattice parameters of the thin film phase measured experimentally from these techniques. The structure of extended defects such as dislocations and grain boundaries will influence the electrical and mechanical characteristics of the films. Here we show a direct image of an edge dislocation in the thin film phase and discuss the way in which the lattice accommodates the defect.
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Bao Q, Li J, Li CM, Dong ZL, Lu Z, Qin F, Gong C, Guo J. Direct Observation and Analysis of Annealing-Induced Microstructure at Interface and Its Effect on Performance Improvement of Organic Thin Film Transistors. J Phys Chem B 2008; 112:12270-8. [DOI: 10.1021/jp804988h] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qiaoliang Bao
- School of Chemical and Biomedical Engineering and Center for Advanced Bionanosystems, Nanyang Technological University, Singapore, 639798, Singapore, and School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
| | - Jun Li
- School of Chemical and Biomedical Engineering and Center for Advanced Bionanosystems, Nanyang Technological University, Singapore, 639798, Singapore, and School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
| | - Chang Ming Li
- School of Chemical and Biomedical Engineering and Center for Advanced Bionanosystems, Nanyang Technological University, Singapore, 639798, Singapore, and School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
| | - Zhi Li Dong
- School of Chemical and Biomedical Engineering and Center for Advanced Bionanosystems, Nanyang Technological University, Singapore, 639798, Singapore, and School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
| | - Zhisong Lu
- School of Chemical and Biomedical Engineering and Center for Advanced Bionanosystems, Nanyang Technological University, Singapore, 639798, Singapore, and School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
| | - Fang Qin
- School of Chemical and Biomedical Engineering and Center for Advanced Bionanosystems, Nanyang Technological University, Singapore, 639798, Singapore, and School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
| | - Cheng Gong
- School of Chemical and Biomedical Engineering and Center for Advanced Bionanosystems, Nanyang Technological University, Singapore, 639798, Singapore, and School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
| | - Jun Guo
- School of Chemical and Biomedical Engineering and Center for Advanced Bionanosystems, Nanyang Technological University, Singapore, 639798, Singapore, and School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
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Lee JH, Curtis MD, Kampf JW. Unusual Thermal Polymerization of 1,4-Bis-5-(4,4‘-dialkyl-2,2‘-bithiazolyl)-1,3-butadiynes: Soluble Polymers from Diacetylenes. Macromolecules 2000. [DOI: 10.1021/ma9911290] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ji-Hoon Lee
- Department of Chemistry and the Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, Michigan 48109-1055
| | - M. David Curtis
- Department of Chemistry and the Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, Michigan 48109-1055
| | - Jeff W. Kampf
- Department of Chemistry and the Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, Michigan 48109-1055
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González L, Martin DC. Lattice Imaging of Electro-Optically Active Poly(nonylbithiazole) (PNBT). Macromolecules 1997. [DOI: 10.1021/ma961456x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L. González
- Macromolecular Science and Engineering Center and Department of Materials Science and Engineering, 2022 H. H. Dow Building, The University of Michigan, Ann Arbor, Michigan 48109-2136
| | - D. C. Martin
- Macromolecular Science and Engineering Center and Department of Materials Science and Engineering, 2022 H. H. Dow Building, The University of Michigan, Ann Arbor, Michigan 48109-2136
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