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Kiefer J, Wagenfeld S, Kerlé D. Chain length effects on the vibrational structure and molecular interactions in the liquid normal alkyl alcohols. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 189:57-65. [PMID: 28800430 DOI: 10.1016/j.saa.2017.07.061] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/03/2017] [Accepted: 07/30/2017] [Indexed: 06/07/2023]
Abstract
Alkyl alcohols are widely used in academia, industry, and our everyday lives, e.g. as cleaning agents and solvents. Vibrational spectroscopy is commonly used to identify and quantify these compounds, but also to study their structure and behavior. However, a comprehensive investigation and comparison of all normal alkanols that are liquid at room temperature has not been performed, surprisingly. This study aims at bridging this gap with a combined experimental and computational effort. For this purpose, the alkyl alcohols from methanol to undecan-1-ol have been analyzed using infrared and Raman spectroscopy. A detailed assignment of the individual peaks is presented and the influence of the alkyl chain length on the hydrogen bonding network is discussed. A 2D vibrational mapping allows a straightforward visualization of the effects. The conclusions drawn from the experimental data are backed up with results from Monte Carlo simulations using the simulation package Cassandra.
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Affiliation(s)
- Johannes Kiefer
- Technische Thermodynamik, Universität Bremen, Badgasteiner Str. 1, 28359 Bremen, Germany; MAPEX Center of Materials and Processes, Universität Bremen, Germany; School of Engineering, University of Aberdeen, Fraser Noble Building, Aberdeen AB24 3UE, UK; Erlangen Graduate School in Advanced Optical Technologies (SAOT), Universität Erlangen-Nürnberg, Germany.
| | - Sabine Wagenfeld
- Technische Thermodynamik, Universität Bremen, Badgasteiner Str. 1, 28359 Bremen, Germany
| | - Daniela Kerlé
- Technische Thermodynamik, Universität Bremen, Badgasteiner Str. 1, 28359 Bremen, Germany; MAPEX Center of Materials and Processes, Universität Bremen, Germany
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Hu NY, Lin K, Zhou XG, Liu SL. Populations of Ethanol Conformers in Liquid CCl4 and CS2 by Raman Spectra in OH Stretching Region. CHINESE J CHEM PHYS 2015. [DOI: 10.1063/1674-0068/28/cjcp1503048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Barnette AL, Kim SH. Attenuated total reflectance infrared spectroscopy study of hysteresis of water and n-alcohol coadsorption on silicon oxide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:15529-15536. [PMID: 23098071 DOI: 10.1021/la302849t] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The structure and thickness of the binary adsorbate layers formed on silicon oxide exposed in n-propanol/water and n-pentanol/water vapor mixtures under atmospheric pressure and room temperature conditions were investigated using attenuated total reflectance infrared spectroscopy (ATR-IR). The ATR-IR spectra of the adsorbate layers were analyzed while the vapor composition was varied stepwise by changing the mixing ratios of (a) n-propanol vapor stream with a 94% relative partial pressure (P/P(sat)) and 94% P/P(sat) water stream and (b) 83% P/P(sat)n-pentanol and 85% P/P(sat) water streams. The amount of the adsorbed water with solid-like structure in the binary adsorbate layer was larger in successive cycles of the water/alcohol vapor composition change, while n-alcohol showed negligible hysteresis in the amount adsorbed. The hysteresis behavior of the solid-like water structure was amplified in the coadsorption cycles of alcohol and water as compared to the water-only case. The origin of this behavior must be attributed to the structure of the alcohol/water binary adsorbate layer. The n-alcohol molecules present at the adsorbate/vapor interface can lower the surface energy of the system and stabilize the solid-like water structure in the alcohol-water binary adsorbate layer on silicon oxide.
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Affiliation(s)
- Anna L Barnette
- Department of Chemical Engineering, The Pennsylvania State University, University Park, 16802, United States
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Pylkkänen T, Lehtola J, Hakala M, Sakko A, Monaco G, Huotari S, Hämäläinen K. Universal Signature of Hydrogen Bonding in the Oxygen K-Edge Spectrum of Alcohols. J Phys Chem B 2010; 114:13076-83. [DOI: 10.1021/jp106479a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- T. Pylkkänen
- Department of Physics, POB 64, FI-00014 University of Helsinki, Finland, and European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble, France
| | - J. Lehtola
- Department of Physics, POB 64, FI-00014 University of Helsinki, Finland, and European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble, France
| | - M. Hakala
- Department of Physics, POB 64, FI-00014 University of Helsinki, Finland, and European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble, France
| | - A. Sakko
- Department of Physics, POB 64, FI-00014 University of Helsinki, Finland, and European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble, France
| | - G. Monaco
- Department of Physics, POB 64, FI-00014 University of Helsinki, Finland, and European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble, France
| | - S. Huotari
- Department of Physics, POB 64, FI-00014 University of Helsinki, Finland, and European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble, France
| | - K. Hämäläinen
- Department of Physics, POB 64, FI-00014 University of Helsinki, Finland, and European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble, France
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Cha M, Shin K, Lee H. Spectroscopic Identification of Amyl Alcohol Hydrates through Free OH Observation. J Phys Chem B 2009; 113:10562-5. [DOI: 10.1021/jp9056412] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Minjun Cha
- Department of Chemical and Biomolecular Engineering (BK21 program) and Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Kyuchul Shin
- Department of Chemical and Biomolecular Engineering (BK21 program) and Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Huen Lee
- Department of Chemical and Biomolecular Engineering (BK21 program) and Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Republic of Korea
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Shin-ya K, Sugeta H, Shin S, Hamada Y, Katsumoto Y, Ohno K. Absolute Configuration and Conformation Analysis of 1-Phenylethanol by Matrix-Isolation Infrared and Vibrational Circular Dichroism Spectroscopy Combined with Density Functional Theory Calculation. J Phys Chem A 2007; 111:8598-605. [PMID: 17685495 DOI: 10.1021/jp068448v] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The absolute configuration and conformation of 1-phenylethanol (1-PhEtOH) have been determined by matrix-isolation infrared (IR) and vibrational circular dichroism (VCD) spectroscopy combined with quantum chemical calculations. Quantum chemical calculations have identified that there are three conformers, namely, I, II, and III, in which characteristic intramolecular interactions are found. The IR spectrum-conformation correlation for 1-PhEtOH has been developed by the Ar matrix-isolation IR measurement and used for the assignments of the observed IR bands. In a dilute CCl(4) solution, 1-PhEtOH exists predominantly as conformer I along with a trace amount of conformer II. By considering conformations and intermolecular hydrogen-bonding in the spectral simulation for (S)-1-PhEtOH, we have successfully reproduced the VCD spectrum of (-)-1-PhEtOH observed in a dilute CS(2) solution. Thus, (-)-1-PhEtOH is of S-configuration and conformer I in the dilute solution. The same method has been applied to analyze the VCD spectra measured in the liquid state of (-)-1-PhEtOH. The absolute configuration of 1-PhEtOH in the condensed phase is enabled by identifying VCD bands that are insensitive to conformational changes and intermolecular interactions. The present work provides a combinatorial procedure for determination of both the absolute configuration and the conformation of chiral molecules in a dilute solution and condensed phase.
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Affiliation(s)
- Kei Shin-ya
- Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
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