1
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Butman JL, Thomson RJ, Geiger FM. Unanticipated Hydrophobicity Increases of Squalene and Human Skin Oil Films Upon Ozone Exposure. J Phys Chem B 2022; 126:9417-9423. [PMID: 36331532 DOI: 10.1021/acs.jpcb.2c04849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The C-H and O-H oscillators on the surfaces of thin films of human-derived skin oil and squalene are probed under ambient conditions (300 K, 1 atm total pressure, 40% RH) using second-order vibrational spectroscopy and contact angle goniometry before and after exposure to ppb amounts of ozone. Skin oil and squalene are found to produce different vibrational sum frequency generation spectra in the C-H stretching region, while exposure to ozone results in surface spectra for both materials that is consistent with a loss of C-H oscillators. The measured contact angles show that the hydrophobicity of the films increases following exposure to ozone, consistent with the reduction in C═C···H2O ("πH") bonding interactions that is expected from C═C double bond loss due to ozonolysis and indicating that the polar functional groups formed point toward the films' interiors. Implications for heterogeneous indoor chemistry are discussed.
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Affiliation(s)
- Jana L Butman
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Regan J Thomson
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Franz M Geiger
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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2
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Bellcross A, Bé AG, Geiger FM, Thomson RJ. Molecular Chirality and Cloud Activation Potentials of Dimeric α-Pinene Oxidation Products. J Am Chem Soc 2021; 143:16653-16662. [PMID: 34605643 DOI: 10.1021/jacs.1c07509] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The surface activity of ten atmospherically relevant α-pinene-derived dimers having varying terminal functional groups and backbone stereochemistry is reported. We find ∼10% differences in surface activity between diastereomers of the same dimer, demonstrating that surface activity depends upon backbone stereochemistry. Octanol-water (KOW) and octanol-ammonium sulfate partitioning coefficient (KOAS) measurements of our standards align well with the surface activity measurements, with the more surface-active dimers exhibiting increased hydrophobicity. Our findings establish a link between molecular chirality and cloud activation potential of secondary organic aerosol particles. Given the diurnal variations in enantiomeric excess of biogenic emissions, possible contributions of such a link to biosphere:atmosphere feedbacks as well as aerosol particle viscosity and phase separation are discussed.
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Affiliation(s)
- Aleia Bellcross
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Ariana Gray Bé
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Franz M Geiger
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Regan J Thomson
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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3
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von Domaros M, Liu Y, Butman JL, Perlt E, Geiger FM, Tobias DJ. Molecular Orientation at the Squalene/Air Interface from Sum Frequency Generation Spectroscopy and Atomistic Modeling. J Phys Chem B 2021; 125:3932-3941. [DOI: 10.1021/acs.jpcb.0c11158] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael von Domaros
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Yangdongling Liu
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Jana L. Butman
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Eva Perlt
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Franz M. Geiger
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Douglas J. Tobias
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
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4
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Yang C, Zhang C, Luo X, Liu X, Cao F, Zhang YL. Isomerization and Degradation of Levoglucosan via the Photo-Fenton Process: Insights from Aqueous-Phase Experiments and Atmospheric Particulate Matter. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:11789-11797. [PMID: 32897062 DOI: 10.1021/acs.est.0c02499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
So far, studies on the conversion of stereochemistry under photo-Fenton conditions and their atmospheric implication are still rare. Here, we found that the biomass burning marker, the chiral compound levoglucosan (L), undergoes oxidative degradation under photo-Fenton conditions and can be isomerized into mannosan (M) and galactosan (G) simultaneously. Among the formic acid, acetic acid, and oxalic acid in the degradation products of levoglucosan, it was found that the yield of formation of formic acid in the photo-Fenton pathway can be as high as 86%. It is worth noting that both levoglucosan and its isomers are present in the atmosphere and their concentrations are strongly correlated. At the same time, the range of their concentration ratios, L/(G + M), measured in the photo-Fenton experiments in the laboratory was found to agree well with that measured in atmospheric PM2.5 samples. However, the sources of L, G, and M in the atmosphere are complex, and the photo-Fenton reaction may be an essential pathway for the distribution of L, G, and M in the atmosphere.
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Affiliation(s)
- Chi Yang
- School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Chunyan Zhang
- School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Xiaosan Luo
- School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Xiaoyan Liu
- School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Fang Cao
- School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Yan-Lin Zhang
- School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
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5
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Møller KH, Praske E, Xu L, Crounse JD, Wennberg PO, Kjaergaard HG. Stereoselectivity in Atmospheric Autoxidation. J Phys Chem Lett 2019; 10:6260-6266. [PMID: 31545897 DOI: 10.1021/acs.jpclett.9b01972] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We show that the diastereomers of hydroxy peroxy radicals formed from OH and O2 addition to C2 and C3, respectively, of crotonaldehyde (CH3CHCHCHO) undergo gas-phase unimolecular aldehydic hydrogen shift (H-shift) chemistry with rate coefficients that differ by an order of magnitude. The stereospecificity observed here for crotonaldehyde is general and will lead to a significant diastereomeric-specific chemistry in the atmosphere. This enhancement of specific stereoisomers by stereoselective gas-phase reactions could have widespread implications given the ubiquity of chirality in nature. The H-shift rate coefficients calculated using multiconformer transition state theory (MC-TST) agree with those determined experimentally using stereoisomer-specific gas-chromatography chemical ionization mass spectroscopy (GC-CIMS) measurements.
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Affiliation(s)
- Kristian H Møller
- Department of Chemistry , University of Copenhagen , DK-2100 Copenhagen Ø , Denmark
| | - Eric Praske
- Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , California 91125 , United States
| | - Lu Xu
- Division of Geological and Planetary Sciences , California Institute of Technology , Pasadena , California 91125 , United States
| | - John D Crounse
- Division of Geological and Planetary Sciences , California Institute of Technology , Pasadena , California 91125 , United States
| | - Paul O Wennberg
- Division of Geological and Planetary Sciences , California Institute of Technology , Pasadena , California 91125 , United States
- Division of Engineering and Applied Science , California Institute of Technology , Pasadena , California 91125 , United States
| | - Henrik G Kjaergaard
- Department of Chemistry , University of Copenhagen , DK-2100 Copenhagen Ø , Denmark
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6
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Dalchand N, Doğangün M, Ohno PE, Ma E, Martinson ABF, Geiger FM. Perturbation of Hydrogen-Bonding Networks over Supported Lipid Bilayers by Poly(allylamine hydrochloride). J Phys Chem B 2019; 123:4251-4257. [PMID: 31013086 DOI: 10.1021/acs.jpcb.9b02392] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Water is vital to many biochemical processes and is necessary for driving fundamental interactions of cell membranes with their external environments, yet it is difficult to probe the membrane/water interface directly and without the use of external labels. Here, we employ vibrational sum frequency generation spectroscopy to understand the role of interfacial water molecules above bilayers formed from zwitterionic (phosphatidylcholine) and anionic (phosphatidylglycerol, PG, and phosphatidylserine, PS) lipids as they are exposed to the common polycation poly(allylamine hydrochloride) (PAH) in 100 mM NaCl. We show that as the concentration of PAH is increased, the interfacial water molecules are irreversibly displaced and find that it requires 10 times more PAH to displace interfacial water molecules from membranes formed from purely zwitterionic lipids when compared to membranes that contain the anionic PG and PS lipids. This outcome is likely due to the difference in (1) the energy with which water molecules are bound to the lipid headgroups, (2) the number of water molecules bound to the headgroups, which is related to the headgroup area, and (3) the electrostatic interactions between the PAH molecules and the negatively charged lipids that are favored when compared to the zwitterionic lipid headgroups. The findings presented here contribute to establishing causal relationships in nanotoxicology and to understanding, controlling, and predicting the initial steps that lead to the lysis of cells exposed to membrane-disrupting polycations or to transfection.
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Affiliation(s)
- Naomi Dalchand
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60660 , United States
| | - Merve Doğangün
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60660 , United States
| | - Paul E Ohno
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60660 , United States
| | - Emily Ma
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60660 , United States
| | - Alex B F Martinson
- Materials Science Division , Argonne National Laboratory , 9700 S. Cass Avenue , Argonne, Lemont , Illinois 40439 , United States
| | - Franz M Geiger
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60660 , United States
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7
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Liu Y, Chase HM, Geiger FM. Partially (resp. fully) reversible adsorption of monoterpenes (resp. alkanes and cycloalkanes) to fused silica. J Chem Phys 2019; 150:074701. [DOI: 10.1063/1.5083585] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yangdongling Liu
- Department of Chemistry, Northwestern University, Evanston,
Illinois 60208, USA
| | - Hilary M. Chase
- Department of Chemistry, Northwestern University, Evanston,
Illinois 60208, USA
| | - Franz M. Geiger
- Department of Chemistry, Northwestern University, Evanston,
Illinois 60208, USA
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8
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Michal P, Čelechovský R, Dudka M, Kapitán J, Vůjtek M, Berešová M, Šebestík J, Thangavel K, Bouř P. Vibrational Optical Activity of Intermolecular, Overtone, and Combination Bands: 2-Chloropropionitrile and α-Pinene. J Phys Chem B 2019; 123:2147-2156. [DOI: 10.1021/acs.jpcb.9b00403] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pavel Michal
- Department of Optics, Palacký University Olomouc, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - Radek Čelechovský
- Department of Optics, Palacký University Olomouc, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - Michal Dudka
- Department of Optics, Palacký University Olomouc, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - Josef Kapitán
- Department of Optics, Palacký University Olomouc, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - Milan Vůjtek
- Department of Optics, Palacký University Olomouc, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - Marie Berešová
- Department of Analytical Chemistry, University of Chemistry and Technology, Technická 5, 16628 Prague, Czech Republic
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610 Prague, Czech Republic
| | - Jaroslav Šebestík
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610 Prague, Czech Republic
| | - Karthick Thangavel
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610 Prague, Czech Republic
| | - Petr Bouř
- Department of Analytical Chemistry, University of Chemistry and Technology, Technická 5, 16628 Prague, Czech Republic
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610 Prague, Czech Republic
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9
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Cash JM, Heal MR, Langford B, Drewer J. A review of stereochemical implications in the generation of secondary organic aerosol from isoprene oxidation. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2016; 18:1369-1380. [PMID: 27762408 DOI: 10.1039/c6em00354k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The atmospheric reactions leading to the generation of secondary organic aerosol (SOA) from the oxidation of isoprene are generally assumed to produce only racemic mixtures, but aspects of the chemical reactions suggest this may not be the case. In this review, the stereochemical outcomes of published isoprene-degradation mechanisms contributing to high amounts of SOA are evaluated. Despite evidence suggesting isoprene first-generation oxidation products do not contribute to SOA directly, this review suggests the stereochemistry of first-generation products may be important because their stereochemical configurations may be retained through to the second-generation products which form SOA. Specifically, due to the stereochemistry of epoxide ring-opening mechanisms, the outcome of the reactions involving epoxydiols of isoprene (IEPOX), methacrylic acid epoxide (MAE) and hydroxymethylmethyl-α-lactone (HMML) are, in principle, stereospecific which indicates the stereochemistry is predefined from first-generation precursors. The products from these three epoxide intermediates oligomerise to form macromolecules which are proposed to form chiral structures within the aerosol and are considered to be the largest contributors to SOA. If conditions in the atmosphere such as pH, aerosol water content, relative humidity, pre-existing aerosol, aerosol coatings and aerosol cation/anion content (and other) variables acting on the reactions leading to SOA affect the tacticity (arrangement of chiral centres) in the SOA then they may influence its physical properties, for example its hygroscopicity. Chamber studies of SOA formation from isoprene encompass particular sets of controlled conditions of these variables. It may therefore be important to consider stereochemistry when upscaling from chamber study data to predictions of SOA yields across the range of ambient atmospheric conditions. Experiments analysing the stereochemistry of the reactions under varying conditions of the above variables would help elucidate whether there is stereoselectivity in SOA formation from isoprene and if the rates of SOA formation are affected.
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Affiliation(s)
- James M Cash
- NERC Centre for Ecology and Hydrology, Bush Estate, Penicuik, EH26 0QB, UK. and School of Chemistry, The University of Edinburgh, David Brewster Rd, Edinburgh EH9 3FJ, UK
| | - Mathew R Heal
- School of Chemistry, The University of Edinburgh, David Brewster Rd, Edinburgh EH9 3FJ, UK
| | - Ben Langford
- NERC Centre for Ecology and Hydrology, Bush Estate, Penicuik, EH26 0QB, UK.
| | - Julia Drewer
- NERC Centre for Ecology and Hydrology, Bush Estate, Penicuik, EH26 0QB, UK.
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10
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Chase HM, Rudshteyn B, Psciuk BT, Upshur MA, Strick BF, Thomson RJ, Batista VS, Geiger FM. Assessment of DFT for Computing Sum Frequency Generation Spectra of an Epoxydiol and a Deuterated Isotopologue at Fused Silica/Vapor Interfaces. J Phys Chem B 2015; 120:1919-27. [DOI: 10.1021/acs.jpcb.5b09769] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Hilary M. Chase
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Benjamin Rudshteyn
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Brian T. Psciuk
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Mary Alice Upshur
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Benjamin F. Strick
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Regan J. Thomson
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Victor S. Batista
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Franz M. Geiger
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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11
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Fu L, Wang Z, Batista VS, Yan ECY. New Insights from Sum Frequency Generation Vibrational Spectroscopy into the Interactions of Islet Amyloid Polypeptides with Lipid Membranes. J Diabetes Res 2015; 2016:7293063. [PMID: 26697504 PMCID: PMC4677203 DOI: 10.1155/2016/7293063] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 06/24/2015] [Indexed: 11/17/2022] Open
Abstract
Studies of amyloid polypeptides on membrane surfaces have gained increasing attention in recent years. Several studies have revealed that membranes can catalyze protein aggregation and that the early products of amyloid aggregation can disrupt membrane integrity, increasing water permeability and inducing ion cytotoxicity. Nonetheless, probing aggregation of amyloid proteins on membrane surfaces is challenging. Surface-specific methods are required to discriminate contributions of aggregates at the membrane interface from those in the bulk phase and to characterize protein secondary structures in situ and in real time without the use of perturbing spectroscopic labels. Here, we review the most recent applications of sum frequency generation (SFG) vibrational spectroscopy applied in conjunction with computational modeling techniques, a joint experimental and computational methodology that has provided valuable insights into the aggregation of islet amyloid polypeptide (IAPP) on membrane surfaces. These applications show that SFG can provide detailed information about structures, kinetics, and orientation of IAPP during interfacial aggregation, relevant to the molecular mechanisms of type II diabetes. These recent advances demonstrate the promise of SFG as a new approach for studying amyloid diseases at the molecular level and for the rational drug design targeting early aggregation products on membrane surfaces.
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Affiliation(s)
- Li Fu
- William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA
| | - Zhuguang Wang
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, CT 06520, USA
| | - Victor S. Batista
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, CT 06520, USA
| | - Elsa C. Y. Yan
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, CT 06520, USA
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12
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Qiao L, Ge A, Liang Y, Ye S. Oxidative Degradation of the Monolayer of 1-Palmitoyl-2-Oleoyl-sn-Glycero-3-Phosphocholine (POPC) in Low-Level Ozone. J Phys Chem B 2015; 119:14188-99. [DOI: 10.1021/acs.jpcb.5b08985] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lin Qiao
- Catalysis Research Center, Hokkaido University, Sapporo 001-0021, Japan
| | - Aimin Ge
- Catalysis Research Center, Hokkaido University, Sapporo 001-0021, Japan
| | - Yimin Liang
- Catalysis Research Center, Hokkaido University, Sapporo 001-0021, Japan
| | - Shen Ye
- Catalysis Research Center, Hokkaido University, Sapporo 001-0021, Japan
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13
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Pöschl U, Shiraiwa M. Multiphase chemistry at the atmosphere-biosphere interface influencing climate and public health in the anthropocene. Chem Rev 2015; 115:4440-75. [PMID: 25856774 DOI: 10.1021/cr500487s] [Citation(s) in RCA: 214] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ulrich Pöschl
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
| | - Manabu Shiraiwa
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
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14
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Shrestha M, Zhang Y, Upshur MA, Liu P, Blair SL, Wang HF, Nizkorodov SA, Thomson RJ, Martin ST, Geiger FM. On Surface Order and Disorder of α-Pinene-Derived Secondary Organic Material. J Phys Chem A 2015; 119:4609-17. [DOI: 10.1021/jp510780e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Mona Shrestha
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yue Zhang
- School of Engineering and Applied Sciences & Department of Earth and Planetary Sciences, Harvard University, 29 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Mary Alice Upshur
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Pengfei Liu
- School of Engineering and Applied Sciences & Department of Earth and Planetary Sciences, Harvard University, 29 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Sandra L. Blair
- Department
of Chemistry, University of California, 1102 Natural Sciences 2, Irvine, California 92697, United States
| | - Hong-fei Wang
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 3335 Innovative Boulevard, Richland, Washington 99354, United States
| | - Sergey A. Nizkorodov
- Department
of Chemistry, University of California, 1102 Natural Sciences 2, Irvine, California 92697, United States
| | - Regan J. Thomson
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Scot T. Martin
- School of Engineering and Applied Sciences & Department of Earth and Planetary Sciences, Harvard University, 29 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Franz M. Geiger
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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15
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Mello R, Sarmiento-Monsalve JT, Vargas-Oviedo D, Acerete R, González-Núñez ME, Asensio G. Inverse solvent effects in the heterogeneous and homogeneous epoxidation of cis-2-heptene with [2-percarboxyethyl]-functionalized silica and meta-chloroperbenzoic acid. Org Biomol Chem 2014; 12:3246-50. [DOI: 10.1039/c4ob00253a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The organized solvent layer on the solid surface determines the reaction rate in the heterogeneous epoxidation of cis-2-heptene.
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Affiliation(s)
- Rossella Mello
- Departamento de Química Orgánica
- Facultad de Farmacia
- Universidad de Valencia
- 46100-Burjassot, Spain
| | | | - Diana Vargas-Oviedo
- Departamento de Química Orgánica
- Facultad de Farmacia
- Universidad de Valencia
- 46100-Burjassot, Spain
| | - Rafael Acerete
- Departamento de Química Inorgánica
- Facultad de Farmacia
- Universidad de Valencia
- 46100-Burjassot, Spain
| | | | - Gregorio Asensio
- Departamento de Química Orgánica
- Facultad de Farmacia
- Universidad de Valencia
- 46100-Burjassot, Spain
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16
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Leng C, Hiltner J, Pham H, Kelley J, Mach M, Zhang Y, Liu Y. Kinetics study of heterogeneous reactions of ozone with erucic acid using an ATR-IR flow reactor. Phys Chem Chem Phys 2014; 16:4350-60. [DOI: 10.1039/c3cp54646b] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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17
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Kleber J, Laß K, Friedrichs G. Quantitative Time-Resolved Vibrational Sum Frequency Generation Spectroscopy as a Tool for Thin Film Kinetic Studies: New Insights into Oleic Acid Monolayer Oxidation. J Phys Chem A 2013; 117:7863-75. [DOI: 10.1021/jp404087s] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Joscha Kleber
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straße
1, D-24118 Kiel, Germany
| | - Kristian Laß
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straße
1, D-24118 Kiel, Germany
| | - Gernot Friedrichs
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straße
1, D-24118 Kiel, Germany
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18
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Ebben CJ, Ault AP, Ruppel MJ, Ryder OS, Bertram TH, Grassian VH, Prather KA, Geiger FM. Size-Resolved Sea Spray Aerosol Particles Studied by Vibrational Sum Frequency Generation. J Phys Chem A 2013; 117:6589-601. [DOI: 10.1021/jp401957k] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Carlena J. Ebben
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208,
United States
| | - Andrew P. Ault
- Department
of Chemistry, University of Iowa, Iowa
City, Iowa 52242, United States
| | - Matthew J. Ruppel
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California
92093, United States
| | - Olivia S. Ryder
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California
92093, United States
| | - Timothy H. Bertram
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California
92093, United States
| | - Vicki H. Grassian
- Department
of Chemistry, University of Iowa, Iowa
City, Iowa 52242, United States
| | - Kimberly A. Prather
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California
92093, United States
- Scripps Institution of Oceanography, La Jolla, California 92093, United
States
| | - Franz M. Geiger
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208,
United States
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19
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Zeng G, Holladay S, Langlois D, Zhang Y, Liu Y. Kinetics of Heterogeneous Reaction of Ozone with Linoleic Acid and its Dependence on Temperature, Physical State, RH, and Ozone Concentration. J Phys Chem A 2013; 117:1963-74. [DOI: 10.1021/jp308304n] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Guang Zeng
- Department of Chemistry, University of Colorado Denver, Denver,
Colorado 80217, United States
- The Institute of Chemical Physics,
Key Laboratory of Cluster Science, School of Chemistry, Beijing Institute of Technology, Beijing
100081, People’s Republic of China
| | - Sara Holladay
- Department of Chemistry, University of Colorado Denver, Denver,
Colorado 80217, United States
| | - Danielle Langlois
- Department of Chemistry, University of Colorado Denver, Denver,
Colorado 80217, United States
| | - Yunhong Zhang
- The Institute of Chemical Physics,
Key Laboratory of Cluster Science, School of Chemistry, Beijing Institute of Technology, Beijing
100081, People’s Republic of China
| | - Yong Liu
- Department of Chemistry, University of Colorado Denver, Denver,
Colorado 80217, United States
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20
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Ebben CJ, Shrestha M, Martinez IS, Corrigan AL, Frossard AA, Song WW, Worton DR, Petäjä T, Williams J, Russell LM, Kulmala M, Goldstein AH, Artaxo P, Martin ST, Thomson RJ, Geiger FM. Organic constituents on the surfaces of aerosol particles from Southern Finland, Amazonia, and California studied by vibrational sum frequency generation. J Phys Chem A 2012; 116:8271-90. [PMID: 22734593 DOI: 10.1021/jp302631z] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This article summarizes and compares the analysis of the surfaces of natural aerosol particles from three different forest environments by vibrational sum frequency generation. The experiments were carried out directly on filter and impactor substrates, without the need for sample preconcentration, manipulation, or destruction. We discuss the important first steps leading to secondary organic aerosol (SOA) particle nucleation and growth from terpene oxidation by showing that, as viewed by coherent vibrational spectroscopy, the chemical composition of the surface region of aerosol particles having sizes of 1 μm and lower appears to be close to size-invariant. We also discuss the concept of molecular chirality as a chemical marker that could be useful for quantifying how chemical constituents in the SOA gas phase and the SOA particle phase are related in time. Finally, we describe how the combination of multiple disciplines, such as aerosol science, advanced vibrational spectroscopy, meteorology, and chemistry can be highly informative when studying particles collected during atmospheric chemistry field campaigns, such as those carried out during HUMPPA-COPEC-2010, AMAZE-08, or BEARPEX-2009, and when they are compared to results from synthetic model systems such as particles from the Harvard Environmental Chamber (HEC). Discussions regarding the future of SOA chemical analysis approaches are given in the context of providing a path toward detailed spectroscopic assignments of SOA particle precursors and constituents and to fast-forward, in terms of mechanistic studies, through the SOA particle formation process.
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Affiliation(s)
- Carlena J Ebben
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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21
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Buchbinder AM, Ray NA, Lu J, Van Duyne RP, Stair PC, Weitz E, Geiger FM. Displacement of hexanol by the hexanoic acid overoxidation product in alcohol oxidation on a model supported palladium nanoparticle catalyst. J Am Chem Soc 2011; 133:17816-23. [PMID: 21919461 DOI: 10.1021/ja2067274] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This work characterizes the adsorption, structure, and binding mechanism of oxygenated organic species from cyclohexane solution at the liquid/solid interface of optically flat alumina-supported palladium nanoparticle surfaces prepared by atomic layer deposition (ALD). The surface-specific nonlinear optical vibrational spectroscopy, sum-frequency generation (SFG), was used as a probe for adsorption and interfacial molecular structure. 1-Hexanoic acid is an overoxidation product and possible catalyst poison for the aerobic heterogeneous oxidation of 1-hexanol at the liquid/solid interface of Pd/Al(2)O(3) catalysts. Single component and competitive adsorption experiments show that 1-hexanoic acid adsorbs to both ALD-prepared alumina surfaces and alumina surfaces with palladium nanoparticles, that were also prepared by ALD, more strongly than does 1-hexanol. Furthermore, 1-hexanoic acid adsorbs with conformational order on ALD-prepared alumina surfaces, but on surfaces with palladium particles the adsorbates exhibit relative disorder at low surface coverage and become more ordered, on average, at higher surface coverage. Although significant differences in binding constant were not observed between surfaces with and without palladium nanoparticles, the palladium particles play an apparent role in controlling adsorbate structures. The disordered adsorption of 1-hexanoic acid most likely occurs on the alumina support, and probably results from modification of binding sites on the alumina, adjacent to the particles. In addition to providing insight on the possibility of catalyst poisoning by the overoxidation product and characterizing changes in its structure that result in only small adsorption energy changes, this work represents a step toward using surface science techniques that bridge the complexity gap between fundamental studies and realistic catalyst models.
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Affiliation(s)
- Avram M Buchbinder
- Department of Chemistry, Center for Catalysis and Surface Science, Northwestern University, Evanston, Illinois 60208, USA
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22
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Buchbinder AM, Weitz E, Geiger FM. When the Solute Becomes the Solvent: Orientation, Ordering, and Structure of Binary Mixtures of 1-Hexanol and Cyclohexane over the (0001) α-Al2O3 Surface. J Am Chem Soc 2010; 132:14661-8. [DOI: 10.1021/ja1068504] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Avram M. Buchbinder
- Department of Chemistry and the Institute for Catalysis in Energy Processes, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Eric Weitz
- Department of Chemistry and the Institute for Catalysis in Energy Processes, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Franz M. Geiger
- Department of Chemistry and the Institute for Catalysis in Energy Processes, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
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23
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Casillas-Ituarte NN, Chen X, Castada H, Allen HC. Na+ and Ca2+ Effect on the Hydration and Orientation of the Phosphate Group of DPPC at Air−Water and Air−Hydrated Silica Interfaces. J Phys Chem B 2010; 114:9485-95. [PMID: 20614879 DOI: 10.1021/jp1022357] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Xiangke Chen
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210
| | - Hardy Castada
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210
| | - Heather C. Allen
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210
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24
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Our choice from the recent literature. Nat Chem 2009. [DOI: 10.1038/nchem.423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Croft L. Stereochemistry in the sky. Nat Chem 2009. [DOI: 10.1038/nchem.409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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