51
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Saha S, Roy S, Mathi P, Mondal JA. Polyatomic Iodine Species at the Air-Water Interface and Its Relevance to Atmospheric Iodine Chemistry: An HD-VSFG and Raman-MCR Study. J Phys Chem A 2019; 123:2924-2934. [PMID: 30830779 DOI: 10.1021/acs.jpca.9b00828] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Iodine plays a key role in tropospheric ozone destruction, atmospheric new particle formation, as well as growth. Air-water interface happens to be an important reaction site pertaining to such phenomena. However, except iodide (I-), the behavior of other iodine species, for example, triiodide (I3-) and iodate (IO3-, the most abundant iodine species in seawater) at the aqueous interface and their effect on the interfacial water are largely unknown. Using interface-specific vibrational spectroscopy (heterodyne-detected vibrational sum frequency generation), we recorded the imaginary-χ(2) spectra (Imχ(2); χ(2) is the second-order electric susceptibility in OH stretch region) of the air-water interface in the presence of IO3-, I3-, and I- (≤0.3 M) in the aqueous subphase. The Imχ(2) spectra reveal that the chaotropic I3- is the most surface-active anion among the iodine species studied and decreases the vibrational coupling and hydrogen-bonding of interfacial water. Interestingly, the IO3-, even being a kosmotrope, is quite prevalent in the interfacial region and preferentially orients the interfacial water as "H-down" (i.e., water dipole moment is pointed toward the bulk water). Mapping of the OH stretch response of ion-affected water at interface (i.e., ΔImχ(2) = Imχ(2)air-water-iodine salt - Imχ(2)air-water) with that in the hydration shell of the respective ion (hydration shell water response is obtained by Raman multivariate curve resolution spectroscopy) reveals a correlative link between the ion's influence on the interfacial water and their hydration shell structure. The distinct water structure of stronger as well as weaker H-bonding in the hydration shell of the polyatomic IO3- anion promotes the anion to stay at the interfacial region. Thus, the surface prevalence of the iodine species and their effect on the interfacial water are perceived to be crucial for the transfer of iodine from seawater to the atmosphere across the marine boundary layer and the chemistry of iodine at aqueous aerosol surface.
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Affiliation(s)
- Subhamoy Saha
- Radiation & Photochemistry Division , Bhabha Atomic Research Centre, Homi Bhabha National Institute , Trombay, Mumbai 400085 , India
| | - Subhadip Roy
- Radiation & Photochemistry Division , Bhabha Atomic Research Centre, Homi Bhabha National Institute , Trombay, Mumbai 400085 , India
| | - P Mathi
- Radiation & Photochemistry Division , Bhabha Atomic Research Centre, Homi Bhabha National Institute , Trombay, Mumbai 400085 , India
| | - Jahur A Mondal
- Radiation & Photochemistry Division , Bhabha Atomic Research Centre, Homi Bhabha National Institute , Trombay, Mumbai 400085 , India
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52
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Cyran JD, Backus EHG, van Zadel MJ, Bonn M. Comparative Adsorption of Acetone on Water and Ice Surfaces. Angew Chem Int Ed Engl 2019; 58:3620-3624. [PMID: 30601600 PMCID: PMC6767755 DOI: 10.1002/anie.201813517] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Indexed: 12/05/2022]
Abstract
Small organic molecules on ice and water surfaces are ubiquitous in nature and play a crucial role in many environmentally relevant processes. Herein, we combine surface‐specific vibrational spectroscopy and a controllable flow cell apparatus to investigate the molecular adsorption of acetone onto the basal plane of single‐crystalline hexagonal ice with a large surface area. By comparing the adsorption of acetone on the ice/air and the water/air interface, we observed two different types of acetone adsorption, as apparent from the different responses of both the free O−H and the hydrogen‐bonded network vibrations for ice and liquid water. Adsorption on ice occurs preferentially through interactions with the free OH group, while the interaction of acetone with the surface of liquid water appears less specific.
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Affiliation(s)
- Jenée D Cyran
- Molecular Spectroscopy Department, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Ellen H G Backus
- Molecular Spectroscopy Department, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.,Department of Physical Chemistry, University of Vienna, Währinger Strasse 42, 1090, Vienna, Austria
| | - Marc-Jan van Zadel
- Molecular Spectroscopy Department, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Mischa Bonn
- Molecular Spectroscopy Department, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
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53
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Vergleichende Acetonadsorption an Wasser- und Eisoberflächen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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54
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Das S, Bonn M, Backus EHG. The surface affinity of cations depends on both the cations and the nature of the surface. J Chem Phys 2019; 150:044706. [PMID: 30709297 DOI: 10.1063/1.5065075] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Specific ion effects at interfaces are important for a variety of thermodynamic properties of electrolyte solutions, like surface tension and the phase behavior of surfactants. We report the relative surface affinity of Na+ and D3O+ at both the D2O-air and the sodium dodecyl sulfate (surfactant)-covered D2O surface by studying the alignment of interfacial D2O, using vibrational sum frequency generation spectroscopy. The surface propensity of ions is found to be a function of both the nature of the ion and the nature of the surface. Specifically, for the charged, surfactant-covered interface, Na+ has a higher affinity than D3O+. In contrast, D3O+ has a higher affinity than Na+ at the air-D2O interface. The relative surface affinity of cations thus depends on both details of the cation and the type of interface.
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Affiliation(s)
- Sudipta Das
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Mischa Bonn
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Ellen H G Backus
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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55
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56
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Bernhard C, Bauer KN, Bonn M, Wurm FR, Gonella G. Interfacial Conformation of Hydrophilic Polyphosphoesters Affects Blood Protein Adsorption. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1624-1629. [PMID: 30516968 DOI: 10.1021/acsami.8b17146] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Synthetic polymers are commonly used as protein repelling materials for a variety of biomedical applications. Despite their widespread use, the fundamental mechanism underlying protein repellence is often elusive. Such insights are essential for improving existing and developing new materials. Here, we investigate how subtle differences in the chemistry of hydrophilic polyphosphoesters influence the adsorption of the human blood proteins serum albumin and fibrinogen. Using thermodynamic measurements, surface-specific vibrational spectroscopy, and Brewster angle microscopy, we investigate protein adsorption, hydration, and steric repulsion properties of the polyphosphoester polymers. Whereas both surface hydration and polymer conformation of the polymers vary substantially as a consequence of the chemical differences in the polymer structure, the protein repellency ability of these hydrophilic materials appears to be dominated by steric repulsion.
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Affiliation(s)
- Christoph Bernhard
- Max Planck Institute for Polymer Research, Ackermannweg 10 , 55128 Mainz , Germany
| | - Kristin N Bauer
- Max Planck Institute for Polymer Research, Ackermannweg 10 , 55128 Mainz , Germany
| | - Mischa Bonn
- Max Planck Institute for Polymer Research, Ackermannweg 10 , 55128 Mainz , Germany
| | - Frederik R Wurm
- Max Planck Institute for Polymer Research, Ackermannweg 10 , 55128 Mainz , Germany
| | - Grazia Gonella
- Max Planck Institute for Polymer Research, Ackermannweg 10 , 55128 Mainz , Germany
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57
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Schlegel SJ, Hosseinpour S, Gebhard M, Devi A, Bonn M, Backus EHG. How water flips at charged titanium dioxide: an SFG-study on the water–TiO2 interface. Phys Chem Chem Phys 2019; 21:8956-8964. [DOI: 10.1039/c9cp01131e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photocatalytic splitting of water into hydrogen and oxygen by utilizing sunlight and a photocatalyst is a promising way of generating clean energy.
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Affiliation(s)
| | | | | | - Anjana Devi
- Inorganic Materials Chemistry
- Ruhr-University Bochum
- 44801 Bochum
- Germany
| | - Mischa Bonn
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | - Ellen H. G. Backus
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
- Department of Physical Chemistry
- University of Vienna
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58
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Sun S, Tang F, Imoto S, Moberg DR, Ohto T, Paesani F, Bonn M, Backus EHG, Nagata Y. Orientational Distribution of Free O-H Groups of Interfacial Water is Exponential. PHYSICAL REVIEW LETTERS 2018; 121:246101. [PMID: 30608741 DOI: 10.1103/physrevlett.121.246101] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/09/2018] [Indexed: 06/09/2023]
Abstract
The orientational distribution of free O-H (O-D) groups at the H_{2}O- (D_{2}O-)air interface is investigated using combined molecular dynamics (MD) simulations and sum-frequency generation (SFG) experiments. The average angle of the free O-H groups, relative to the surface normal, is found to be ∼63°, substantially larger than previous estimates of 30°-40°. This discrepancy can be traced to erroneously assumed Gaussian or stepwise orientational distributions of free O-H groups. Instead, the MD simulation and SFG measurement reveal a broad and exponentially decaying orientational distribution. The broad orientational distribution indicates the presence of the free O-H group pointing down to the bulk. We ascribe the origin of such free O-H groups to the presence of capillary waves on the water surface.
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Affiliation(s)
- Shumei Sun
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Fujie Tang
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- International Center for Quantum Materials, School of Physics, Peking University, 5 Yiheyuan Road, Haidian, Beijing 100871, China
| | - Sho Imoto
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Daniel R Moberg
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, USA
| | - Tatsuhiko Ohto
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Francesco Paesani
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, USA
| | - Mischa Bonn
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Ellen H G Backus
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Yuki Nagata
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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59
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Li X, Ma L, Lu X. Calcium Ions Affect Water Molecular Structures Surrounding an Oligonucleotide Duplex as Revealed by Sum Frequency Generation Vibrational Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:14774-14779. [PMID: 30089212 DOI: 10.1021/acs.langmuir.8b01763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The solvation of DNA in water facilitates the formation of a hydration layer surrounding it, thus stabilizing the DNA duplex in the biological aqueous environment. In this study, via using the lipid bilayer as a soft substrate to accommodate the duplex oligonucleotide, the structure of the water layer surrounding the oligonucleotide was detected under the perturbation of the calcium ions (Ca2+) with chiral and achiral sum frequency generation (SFG) vibrational spectroscopy. With increasing Ca2+ concentration, both the chiral and achiral water vibrational signals had similar concentration-dependent changes, i.e., an initial decreasing phase followed by an increasing phase. However, when the Ca2+ concentrations were adjusted to within the range comparable to those in the human serum, the chiral water vibrational signals remained nearly unchanged, whereas the achiral water vibrational signals still changed as a function of the Ca2+ concentration. Therefore, the current experimental result supports the possible protection function of the chiral hydration layer against the Ca2+ ions, which generally exist in the cell sap and play important roles in many biological functions.
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Affiliation(s)
- Xu Li
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering , Southeast University , Nanjing 210096 , Jiangsu Province , P. R. China
| | - Liang Ma
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering , Southeast University , Nanjing 210096 , Jiangsu Province , P. R. China
| | - Xiaolin Lu
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering , Southeast University , Nanjing 210096 , Jiangsu Province , P. R. China
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60
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Ohto T, Dodia M, Imoto S, Nagata Y. Structure and Dynamics of Water at the Water–Air Interface Using First-Principles Molecular Dynamics Simulations within Generalized Gradient Approximation. J Chem Theory Comput 2018; 15:595-602. [DOI: 10.1021/acs.jctc.8b00567] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tatsuhiko Ohto
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Mayank Dodia
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Sho Imoto
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Yuki Nagata
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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61
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Hu Q, Zhao H, Ouyang S. Interpreting the Raman OH/OD stretch band of ice from isotopic substitution and phase transition effects. Phys Chem Chem Phys 2018; 20:28600-28605. [PMID: 30406247 DOI: 10.1039/c8cp06281a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Understanding the OD/OH stretch band (ODSB/OHSB) features for the Raman spectra of ice remains a challenge. This study measures the ODSB/OHSB for isotopically substituted D2O/H2O (with volume ratio VD2O/VH2O of 1/0, 4/1, 1/1, 1/4 and 0/1) ice Ih, and compares them with those for liquid water and ices in various phases. The data show that istopic substitution (IS) narrows the ODSB/OHSB of ice from both the low-frequency and the high-frequency side to the middle of the OD/OH stretch regions, but in contrast, IS enhances the high-frequency part of the ODSB/OHSB for liquid water. The ODSB/OHSB features of ice and their dependences on IS and phase transition can be understood basically from the concept that ice has diverse HB configurations that depend on the ice lattice form and the proton (dis)order and essentially determine the intermolecular vibrational couplings in ice. Combined with a Gaussian fitting analysis, more details for the HB configurations in ice are revealed: tetrahedral HB profiles, which are responsible for the main peak, are dominant and non-tetrahedral ones, which bring about the high-frequency shoulders, are also important. On IS, the proportion of tetrahedral HB profiles sees a dramatic decrease.
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Affiliation(s)
- Qingcheng Hu
- Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China.
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62
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Lesnicki D, Sulpizi M. A Microscopic Interpretation of Pump-Probe Vibrational Spectroscopy Using Ab Initio Molecular Dynamics. J Phys Chem B 2018; 122:6604-6609. [PMID: 29799755 DOI: 10.1021/acs.jpcb.8b04159] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
What happens when extra vibrational energy is added to water? Using nonequilibrium molecular dynamics simulations, also including the full electronic structure, and novel descriptors, based on projected vibrational density of states, we are able to follow the flow of excess vibrational energy from the excited stretching and bending modes. We find that the energy relaxation, mostly mediated by a stretching-stretching coupling in the first solvation shell, is highly heterogeneous and strongly depends on the local environment, where a strong hydrogen bond network can transport energy with a time scale of 200 fs, whereas a weaker network can slow down the transport by a factor 2-3.
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Affiliation(s)
- Dominika Lesnicki
- Institute of Physics , Johannes Gutenberg University Mainz , Staudingerweg 7 , 55099 Mainz , Germany
| | - Marialore Sulpizi
- Institute of Physics , Johannes Gutenberg University Mainz , Staudingerweg 7 , 55099 Mainz , Germany
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63
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Tang F, Ohto T, Hasegawa T, Xie WJ, Xu L, Bonn M, Nagata Y. Correction to Definition of Free O–H Groups of Water at the Air–Water Interface. J Chem Theory Comput 2018; 14:3363. [DOI: 10.1021/acs.jctc.8b00402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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64
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Ohto T, Tada H, Nagata Y. Structure and dynamics of water at water-graphene and water-hexagonal boron-nitride sheet interfaces revealed by ab initio sum-frequency generation spectroscopy. Phys Chem Chem Phys 2018; 20:12979-12985. [PMID: 29707716 DOI: 10.1039/c8cp01351a] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We simulate sum-frequency generation (SFG) spectra of isotopically diluted water at the water-graphene and water-hexagonal boron-nitride (hBN) sheet interfaces, using ab initio molecular dynamics simulations. A sharp 'dangling' O-D peak around ∼2640 cm-1 appearing in both simulated SFG spectra evidences that both graphene and hBN are hydrophobic. The dangling O-D peak is 10 cm-1 red-shifted at the water-hBN interface relative to the peak at the water-graphene interface. This frequency difference gives a stronger O-DN intermolecular interaction between water and hBN than the O-DC interaction between water and graphene. Accordingly, the anisotropy decay of such a dangling O-D group slows down near hBN compared with near graphene, illustrating that the dynamics of the dangling O-D group are also affected by the stronger O-DN interaction than the O-DC interaction. We discuss molecular-level insights into the structure and dynamics of interfacial water in the context of the friction of hBN and graphene.
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Affiliation(s)
- Tatsuhiko Ohto
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan.
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65
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Gordon BP, Moore FG, Scatena LF, Valley NA, Wren SN, Richmond GL. Model Behavior: Characterization of Hydroxyacetone at the Air-Water Interface Using Experimental and Computational Vibrational Sum Frequency Spectroscopy. J Phys Chem A 2018; 122:3837-3849. [PMID: 29608301 DOI: 10.1021/acs.jpca.8b01193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Small atmospheric aldehydes and ketones are known to play a significant role in the formation of secondary organic aerosols (SOA). However, many of them are difficult to experimentally isolate, as they tend to form hydration and oligomer species. Hydroxyacetone (HA) is unusual in this class as it contributes to SOA while existing predominantly in its unhydrated monomeric form. This allows HA to serve as a valuable model system for similar secondary organic carbonyls. In this paper the surface behavior of HA at the air-water interface has been investigated using vibrational sum frequency (VSF) spectroscopy and Wilhelmy plate surface tensiometry in combination with computational molecular dynamics simulations and density functional theory calculations. The experimental results demonstrate that HA has a high degree of surface activity and is ordered at the interface. Furthermore, oriented water is observed at the interface, even at high HA concentrations. Spectral features also reveal the presence of both cis and trans HA conformers at the interface, in differing orientations. Molecular dynamics results indicate conformer dependent shifts in HA orientation between the subsurface (∼5 Å deep) and surface. Together, these results provide a picture of a highly dynamic, but statistically ordered, interface composed of multiple HA conformers with solvated water. These results have implications for HA's behavior in aqueous particles, which may affect its role in the atmosphere and SOA formation.
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Affiliation(s)
- Brittany P Gordon
- Department of Chemistry , University of Oregon , 1253 University of Oregon , Eugene , Oregon 97403 , United States
| | - Frederick G Moore
- Department of Physics , Whitman College , Walla Walla , Washington 99362 , United States
| | - Lawrence F Scatena
- Department of Chemistry , University of Oregon , 1253 University of Oregon , Eugene , Oregon 97403 , United States
| | - Nicholas A Valley
- Department of Chemistry , University of Oregon , 1253 University of Oregon , Eugene , Oregon 97403 , United States.,Department of Science and Mathematics , California Northstate University College of Health Sciences , Rancho Cordova , California 95670 , United States
| | - Sumi N Wren
- Department of Chemistry , University of Oregon , 1253 University of Oregon , Eugene , Oregon 97403 , United States.,Department of Air Quality Process Research , Environment and Climate Change Canada (ECCC) , Toronto , Ontario M3H 5T4 , Canada
| | - Geraldine L Richmond
- Department of Chemistry , University of Oregon , 1253 University of Oregon , Eugene , Oregon 97403 , United States
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66
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Moberg DR, Straight SC, Paesani F. Temperature Dependence of the Air/Water Interface Revealed by Polarization Sensitive Sum-Frequency Generation Spectroscopy. J Phys Chem B 2018; 122:4356-4365. [DOI: 10.1021/acs.jpcb.8b01726] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Daniel R. Moberg
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Shelby C. Straight
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Francesco Paesani
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
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67
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Sanders SE, Vanselous H, Petersen PB. Water at surfaces with tunable surface chemistries. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2018; 30:113001. [PMID: 29393860 DOI: 10.1088/1361-648x/aaacb5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Aqueous interfaces are ubiquitous in natural environments, spanning atmospheric, geological, oceanographic, and biological systems, as well as in technical applications, such as fuel cells and membrane filtration. Where liquid water terminates at a surface, an interfacial region is formed, which exhibits distinct properties from the bulk aqueous phase. The unique properties of water are governed by the hydrogen-bonded network. The chemical and physical properties of the surface dictate the boundary conditions of the bulk hydrogen-bonded network and thus the interfacial properties of the water and any molecules in that region. Understanding the properties of interfacial water requires systematically characterizing the structure and dynamics of interfacial water as a function of the surface chemistry. In this review, we focus on the use of experimental surface-specific spectroscopic methods to understand the properties of interfacial water as a function of surface chemistry. Investigations of the air-water interface, as well as efforts in tuning the properties of the air-water interface by adding solutes or surfactants, are briefly discussed. Buried aqueous interfaces can be accessed with careful selection of spectroscopic technique and sample configuration, further expanding the range of chemical environments that can be probed, including solid inorganic materials, polymers, and water immiscible liquids. Solid substrates can be finely tuned by functionalization with self-assembled monolayers, polymers, or biomolecules. These variables provide a platform for systematically tuning the chemical nature of the interface and examining the resulting water structure. Finally, time-resolved methods to probe the dynamics of interfacial water are briefly summarized before discussing the current status and future directions in studying the structure and dynamics of interfacial water.
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Affiliation(s)
- Stephanie E Sanders
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, United States of America
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68
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Cyran JD, Backus EHG, Nagata Y, Bonn M. Structure from Dynamics: Vibrational Dynamics of Interfacial Water as a Probe of Aqueous Heterogeneity. J Phys Chem B 2018; 122:3667-3679. [PMID: 29490138 PMCID: PMC5900549 DOI: 10.1021/acs.jpcb.7b10574] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
![]()
The structural heterogeneity of water
at various interfaces can be revealed by time-resolved sum-frequency
generation spectroscopy. The vibrational dynamics of the O–H
stretch vibration of interfacial water can reflect structural variations.
Specifically, the vibrational lifetime is typically found to increase
with increasing frequency of the O–H stretch vibration, which
can report on the hydrogen-bonding heterogeneity of water. We compare
and contrast vibrational dynamics of water in contact with various
surfaces, including vapor, biomolecules, and solid interfaces. The
results reveal that variations in the vibrational lifetime with vibrational
frequency are very typical, and can frequently be accounted for by
the bulk-like heterogeneous response of interfacial water. Specific
interfaces exist, however, for which the behavior is less straightforward.
These insights into the heterogeneity of interfacial water thus obtained
contribute to a better understanding of complex phenomena taking place
at aqueous interfaces, such as photocatalytic reactions and protein
folding.
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Affiliation(s)
- Jenée D Cyran
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Ellen H G Backus
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Yuki Nagata
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Mischa Bonn
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
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69
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Smit WJ, Versluis J, Backus EHG, Bonn M, Bakker HJ. Reduced Near-Resonant Vibrational Coupling at the Surfaces of Liquid Water and Ice. J Phys Chem Lett 2018; 9:1290-1294. [PMID: 29481753 PMCID: PMC5857927 DOI: 10.1021/acs.jpclett.7b03359] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 02/26/2018] [Indexed: 05/28/2023]
Abstract
We study the resonant interaction of the OH stretch vibrations of water molecules at the surfaces of liquid water and ice using heterodyne-detected sum-frequency generation (HD-SFG) spectroscopy. By studying different isotopic mixtures of H2O and D2O, we vary the strength of the interaction, and we monitor the resulting effect on the HD-SFG spectrum of the OH stretch vibrations. We observe that the near-resonant coupling effects are weaker at the surface than in the bulk, for both water and ice, indicating that for both phases of water the OH vibrations are less strongly delocalized at the surface than in the bulk.
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Affiliation(s)
- Wilbert J. Smit
- AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- PSL
Research University, ESPCI Paris, UMR CBI 8231, 10 rue Vauquelin, 75005 Paris, France
| | - Jan Versluis
- AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Ellen H. G. Backus
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Mischa Bonn
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Huib J. Bakker
- AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
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70
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Dreier LB, Nagata Y, Lutz H, Gonella G, Hunger J, Backus EHG, Bonn M. Saturation of charge-induced water alignment at model membrane surfaces. SCIENCE ADVANCES 2018; 4:eaap7415. [PMID: 29670939 PMCID: PMC5903901 DOI: 10.1126/sciadv.aap7415] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 02/15/2018] [Indexed: 05/23/2023]
Abstract
The electrical charge of biological membranes and thus the resulting alignment of water molecules in response to this charge are important factors affecting membrane rigidity, transport, and reactivity. We tune the surface charge density by varying lipid composition and investigate the charge-induced alignment of water molecules using surface-specific vibrational spectroscopy and molecular dynamics simulations. At low charge densities, the alignment of water increases proportionally to the charge. However, already at moderate, physiologically relevant charge densities, water alignment starts to saturate despite the increase in the nominal surface charge. The saturation occurs in both the Stern layer, directly at the surface, and in the diffuse layer, yet for distinctly different reasons. Our results show that the soft nature of the lipid interface allows for a marked reduction of the surface potential at high surface charge density via both interfacial molecular rearrangement and permeation of monovalent ions into the interface.
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Affiliation(s)
- Lisa B. Dreier
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Graduate School Materials Science in Mainz, Staudingerweg 9, 55128 Mainz, Germany
| | - Yuki Nagata
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Helmut Lutz
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Grazia Gonella
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Johannes Hunger
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Ellen H. G. Backus
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Mischa Bonn
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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71
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Kocsis I, Sorci M, Vanselous H, Murail S, Sanders SE, Licsandru E, Legrand YM, van der Lee A, Baaden M, Petersen PB, Belfort G, Barboiu M. Oriented chiral water wires in artificial transmembrane channels. SCIENCE ADVANCES 2018; 4:eaao5603. [PMID: 29582016 PMCID: PMC5866074 DOI: 10.1126/sciadv.aao5603] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 02/09/2018] [Indexed: 05/13/2023]
Abstract
Aquaporins (AQPs) feature highly selective water transport through cell membranes, where the dipolar orientation of structured water wires spanning the AQP pore is of considerable importance for the selective translocation of water over ions. We recently discovered that water permeability through artificial water channels formed by stacked imidazole I-quartet superstructures increases when the channel water molecules are highly organized. Correlating water structure with molecular transport is essential for understanding the underlying mechanisms of (fast) water translocation and channel selectivity. Chirality adds another factor enabling unique dipolar oriented water structures. We show that water molecules exhibit a dipolar oriented wire structure within chiral I-quartet water channels both in the solid state and embedded in supported lipid bilayer membranes (SLBs). X-ray single-crystal structures show that crystallographic water wires exhibit dipolar orientation, which is unique for chiral I-quartets. The integration of I-quartets into SLBs was monitored with a quartz crystal microbalance with dissipation, quantizing the amount of channel water molecules. Nonlinear sum-frequency generation vibrational spectroscopy demonstrates the first experimental observation of dipolar oriented water structures within artificial water channels inserted in bilayer membranes. Confirmation of the ordered confined water is obtained via molecular simulations, which provide quantitative measures of hydrogen bond strength, connectivity, and the stability of their dipolar alignment in a membrane environment. Together, uncovering the interplay between the dipolar aligned water structure and water transport through the self-assembled I-quartets is critical to understanding the behavior of natural membrane channels and will accelerate the systematic discovery for developing artificial water channels for water desalting.
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Affiliation(s)
- Istvan Kocsis
- Institut Europeen des Membranes, Adaptive Supramolecular Nanosystems Group, Université de Montpellier, ENSCM, CNRS, Place Eugene Bataillon CC047, Montpellier F-34095, France
| | - Mirco Sorci
- Howard P. Isermann Department of Chemical and Biological Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180–3590, USA
| | - Heather Vanselous
- Department of Chemistry and Chemical Biology, Cornell University, B46 Baker Laboratory, Ithaca, NY 14853, USA
| | - Samuel Murail
- Laboratoire de Biochimie Théorique, CNRS, UPR9080, Université Paris Diderot, Sorbonne Paris Cité, Institut de Biologie Physico-Chimique, 13, rue Pierre et Marie Curie, Paris F-75005, France
| | - Stephanie E. Sanders
- Department of Chemistry and Chemical Biology, Cornell University, B46 Baker Laboratory, Ithaca, NY 14853, USA
| | - Erol Licsandru
- Institut Europeen des Membranes, Adaptive Supramolecular Nanosystems Group, Université de Montpellier, ENSCM, CNRS, Place Eugene Bataillon CC047, Montpellier F-34095, France
| | - Yves-Marie Legrand
- Institut Europeen des Membranes, Adaptive Supramolecular Nanosystems Group, Université de Montpellier, ENSCM, CNRS, Place Eugene Bataillon CC047, Montpellier F-34095, France
| | - Arie van der Lee
- Institut Europeen des Membranes, Adaptive Supramolecular Nanosystems Group, Université de Montpellier, ENSCM, CNRS, Place Eugene Bataillon CC047, Montpellier F-34095, France
| | - Marc Baaden
- Laboratoire de Biochimie Théorique, CNRS, UPR9080, Université Paris Diderot, Sorbonne Paris Cité, Institut de Biologie Physico-Chimique, 13, rue Pierre et Marie Curie, Paris F-75005, France
| | - Poul B. Petersen
- Department of Chemistry and Chemical Biology, Cornell University, B46 Baker Laboratory, Ithaca, NY 14853, USA
- Corresponding author. (P.B.P.); (G.B.); (M.B.)
| | - Georges Belfort
- Howard P. Isermann Department of Chemical and Biological Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180–3590, USA
- Corresponding author. (P.B.P.); (G.B.); (M.B.)
| | - Mihail Barboiu
- Institut Europeen des Membranes, Adaptive Supramolecular Nanosystems Group, Université de Montpellier, ENSCM, CNRS, Place Eugene Bataillon CC047, Montpellier F-34095, France
- Corresponding author. (P.B.P.); (G.B.); (M.B.)
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72
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Tan J, Luo Y, Ye S. A Highly Sensitive Femtosecond Time-Resolved Sum Frequency Generation Vibrational Spectroscopy System with Simultaneous Measurement of Multiple Polarization Combinations. CHINESE J CHEM PHYS 2017. [DOI: 10.1063/1674-0068/30/cjcp1706114] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Junjun Tan
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Yi Luo
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Shuji Ye
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
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73
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Tang F, Ohto T, Hasegawa T, Xie WJ, Xu L, Bonn M, Nagata Y. Definition of Free O–H Groups of Water at the Air–Water Interface. J Chem Theory Comput 2017; 14:357-364. [DOI: 10.1021/acs.jctc.7b00566] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fujie Tang
- International
Center for Quantum Materials, School of Physics, Peking University, 5
Yiheyuan Road, Haidian, Beijing 100871, China
- Max Planck Institute
for Polymer Research, Ackermannweg
10, D-55128 Mainz, Germany
| | - Tatsuhiko Ohto
- Graduate
School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Taisuke Hasegawa
- Max Planck Institute
for Polymer Research, Ackermannweg
10, D-55128 Mainz, Germany
- Department
of Chemistry, Graduate School of Science, Kyoto University, Sakyoku, Kyoto 606-8502, Japan
| | - Wen Jun Xie
- Max Planck Institute
for Polymer Research, Ackermannweg
10, D-55128 Mainz, Germany
- College
of Chemistry and Molecular Engineering, Peking University, 5
Yiheyuan Road, Haidian, Beijing 100871, China
| | - Limei Xu
- International
Center for Quantum Materials, School of Physics, Peking University, 5
Yiheyuan Road, Haidian, Beijing 100871, China
- Collaborative Innovation
Center of Quantum Matter, Beijing 100871, China
| | - Mischa Bonn
- Max Planck Institute
for Polymer Research, Ackermannweg
10, D-55128 Mainz, Germany
| | - Yuki Nagata
- Max Planck Institute
for Polymer Research, Ackermannweg
10, D-55128 Mainz, Germany
- Institute for
Molecular Science, Myodaiji, Okazaki, Aichi 444-8585, Japan
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74
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Affiliation(s)
- Wilbert J. Smit
- AMOLF; Science Park 104 1098 XG Amsterdam The Netherlands
- PSL Research University; ESPCI Paris, UMR CBI 8231; 10 rue Vauquelin 75005 Paris France
| | - Huib J. Bakker
- AMOLF; Science Park 104 1098 XG Amsterdam The Netherlands
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75
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Smit WJ, Bakker HJ. The Surface of Ice Is Like Supercooled Liquid Water. Angew Chem Int Ed Engl 2017; 56:15540-15544. [PMID: 28941041 DOI: 10.1002/anie.201707530] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Wilbert J. Smit
- AMOLF; Science Park 104 1098 XG Amsterdam The Netherlands
- PSL Research University; ESPCI Paris, UMR CBI 8231; 10 rue Vauquelin 75005 Paris France
| | - Huib J. Bakker
- AMOLF; Science Park 104 1098 XG Amsterdam The Netherlands
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76
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McWilliams LE, Valley NA, Vincent NM, Richmond GL. Interfacial Insights into a Carbon Capture System: CO2 Uptake to an Aqueous Monoethanolamine Surface. J Phys Chem A 2017; 121:7956-7967. [DOI: 10.1021/acs.jpca.7b07742] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Laura E. McWilliams
- Department
of Chemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Nicholas A. Valley
- California Northstate University College of Health Sciences, Rancho Cordova, California 95670, United States
| | - Nina M. Vincent
- Department
of Chemistry, University of Oregon, Eugene, Oregon 97403, United States
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77
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Smit WJ, Tang F, Sánchez MA, Backus EHG, Xu L, Hasegawa T, Bonn M, Bakker HJ, Nagata Y. Excess Hydrogen Bond at the Ice-Vapor Interface around 200 K. PHYSICAL REVIEW LETTERS 2017; 119:133003. [PMID: 29341676 DOI: 10.1103/physrevlett.119.133003] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Indexed: 06/07/2023]
Abstract
Phase-resolved sum-frequency generation measurements combined with molecular dynamics simulations are employed to study the effect of temperature on the molecular arrangement of water on the basal face of ice. The topmost monolayer, interrogated through its nonhydrogen-bonded, free O-H stretch peak, exhibits a maximum in surface H-bond density around 200 K. This maximum results from two competing effects: above 200 K, thermal fluctuations cause the breaking of H bonds; below 200 K, the formation of bulklike crystalline interfacial structures leads to H-bond breaking. Knowledge of the surface structure of ice is critical for understanding reactions occurring on ice surfaces and ice nucleation.
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Affiliation(s)
- Wilbert J Smit
- AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Fujie Tang
- International Center for Quantum Materials, Peking University, 5 Yiheyuan Road, Haidian, Beijing 100871, China
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - M Alejandra Sánchez
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Ellen H G Backus
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Limei Xu
- International Center for Quantum Materials, Peking University, 5 Yiheyuan Road, Haidian, Beijing 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
| | - Taisuke Hasegawa
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyoku, Kyoto 606-8502, Japan
| | - Mischa Bonn
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Huib J Bakker
- AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Yuki Nagata
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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78
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Götte L, Parry KM, Hua W, Verreault D, Allen HC, Tobias DJ. Solvent-Shared Ion Pairs at the Air–Solution Interface of Magnesium Chloride and Sulfate Solutions Revealed by Sum Frequency Spectroscopy and Molecular Dynamics Simulations. J Phys Chem A 2017; 121:6450-6459. [DOI: 10.1021/acs.jpca.7b05600] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lisa Götte
- Lehrstuhl für
Theoretische Chemie, Ruhr-Universität, 44780 Bochum, Germany
| | - Krista M. Parry
- Department
of Chemistry, University of California, Irvine, California 92679-2025, United States
| | - Wei Hua
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Dominique Verreault
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Heather C. Allen
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Douglas J. Tobias
- Department
of Chemistry, University of California, Irvine, California 92679-2025, United States
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79
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Smit W, Tang F, Nagata Y, Sánchez MA, Hasegawa T, Backus EHG, Bonn M, Bakker HJ. Observation and Identification of a New OH Stretch Vibrational Band at the Surface of Ice. J Phys Chem Lett 2017; 8:3656-3660. [PMID: 28715224 PMCID: PMC5545757 DOI: 10.1021/acs.jpclett.7b01295] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We study the signatures of the OH stretch vibrations at the basal surface of ice using heterodyne-detected sum-frequency generation and molecular dynamics simulations. At 150 K, we observe seven distinct modes in the sum-frequency response, five of which have an analogue in the bulk, and two pure surface-specific modes at higher frequencies (∼3530 and ∼3700 cm-1). The band at ∼3530 cm-1 has not been reported previously. Using molecular dynamics simulations, we find that the ∼3530 cm-1 band contains contributions from OH stretch vibrations of both fully coordinated interfacial water molecules and water molecules with two donor and one acceptor hydrogen bond.
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Affiliation(s)
| | - Fujie Tang
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- International
Center for Quantum Materials, Peking University, 5 Yiheyuan Road, Haidian, Beijing 100871, China
| | - Yuki Nagata
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - M. Alejandra Sánchez
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Taisuke Hasegawa
- Department
of Chemistry, Graduate School of Science, Kyoto University, Sakyoku, Kyoto 606-8502, Japan
| | - Ellen H. G. Backus
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Mischa Bonn
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Huib J. Bakker
- AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- E-mail:
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80
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McDermott ML, Vanselous H, Corcelli SA, Petersen PB. DNA's Chiral Spine of Hydration. ACS CENTRAL SCIENCE 2017; 3:708-714. [PMID: 28776012 PMCID: PMC5532714 DOI: 10.1021/acscentsci.7b00100] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Indexed: 05/22/2023]
Abstract
The iconic helical structure of DNA is stabilized by the solvation environment, where a change in the hydration state can lead to dramatic changes to the DNA structure. X-ray diffraction experiments at cryogenic temperatures have shown crystallographic water molecules in the minor groove of DNA, which has led to the notion of a spine of hydration of DNA. Here, chiral nonlinear vibrational spectroscopy of two DNA sequences shows that not only do such structural water molecules exist in solution at ambient conditions but that they form a chiral superstructure: a chiral spine of hydration. This is the first observation of a chiral water superstructure templated by a biomolecule. While the biological relevance of a chiral spine of hydration is unknown, the method provides a direct way to interrogate the properties of the hydration environment of DNA and water in biological settings without the use of labels.
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Affiliation(s)
- M. Luke McDermott
- Department
of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York, United States
| | - Heather Vanselous
- Department
of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York, United States
| | - Steven A. Corcelli
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana, United States
| | - Poul B. Petersen
- Department
of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York, United States
- E-mail:
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81
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Pezzotti S, Galimberti DR, Gaigeot MP. 2D H-Bond Network as the Topmost Skin to the Air-Water Interface. J Phys Chem Lett 2017; 8:3133-3141. [PMID: 28644626 DOI: 10.1021/acs.jpclett.7b01257] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We provide a detailed description of the structure of water at the interface with the air (liquid-vapor LV interface) from state-of-the-art DFT-based molecular dynamics simulations. For the first time, a two-dimensional (2D) H-bond extended network has been identified and fully characterized, demonstrating that interfacial water is organized into a 2D sheet with H-bonds oriented parallel to the instantaneous surface and following its spatial and temporal oscillations. By analyzing the nonlinear vSFG (vibrational sum frequency generation) spectrum of the LV interface in terms of layer-by-layer signal, we demonstrate that the 2D water sheet is solely responsible for the spectral signatures, hence providing the interfacial 3.5 Å thickness effectively probed in nonlinear interfacial spectroscopy. The 2D H-bond network unraveled here is the essential key to rationalize macroscopic properties of water-air interfaces, as demonstrated here for spectroscopy and the surface potential.
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Affiliation(s)
- Simone Pezzotti
- LAMBE CNRS UMR8587, Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement, Université d'Evry val d'Essonne , Boulevard F. Mitterrand, Bat Maupertuis, 91025 Evry, France
- Université Paris-Saclay , 91190 Saint-Aubin, France
| | - Daria Ruth Galimberti
- LAMBE CNRS UMR8587, Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement, Université d'Evry val d'Essonne , Boulevard F. Mitterrand, Bat Maupertuis, 91025 Evry, France
- Université Paris-Saclay , 91190 Saint-Aubin, France
| | - Marie-Pierre Gaigeot
- LAMBE CNRS UMR8587, Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement, Université d'Evry val d'Essonne , Boulevard F. Mitterrand, Bat Maupertuis, 91025 Evry, France
- Université Paris-Saclay , 91190 Saint-Aubin, France
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82
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Hosseinpour S, Tang F, Wang F, Livingstone RA, Schlegel SJ, Ohto T, Bonn M, Nagata Y, Backus EHG. Chemisorbed and Physisorbed Water at the TiO 2/Water Interface. J Phys Chem Lett 2017; 8:2195-2199. [PMID: 28447795 PMCID: PMC5489252 DOI: 10.1021/acs.jpclett.7b00564] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The interfacial structure of water in contact with TiO2 is the key to understand the mechanism of photocatalytic water dissociation as well as photoinduced superhydrophilicity. We investigate the interfacial molecular structure of water at the surface of anatase TiO2, using phase-sensitive sum frequency generation spectroscopy together with spectra simulation using ab initio molecular dynamic trajectories. We identify two oppositely oriented, weakly and strongly hydrogen-bonded subensembles of O-H groups at the superhydrophilic UV irradiated TiO2 surface. The water molecules with weakly hydrogen-bonded O-H groups are chemisorbed, i.e. form hydroxyl groups, at the TiO2 surface with their hydrogen atoms pointing toward bulk water. The strongly hydrogen-bonded O-H groups interact with the oxygen atom of the chemisorbed water. Their hydrogen atoms point toward the TiO2. This strong interaction between physisorbed and chemisorbed water molecules causes superhydrophilicity.
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Affiliation(s)
- Saman Hosseinpour
- Department
of Molecular Spectroscopy, Max Planck Institute
for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- E-mail:
| | - Fujie Tang
- Department
of Molecular Spectroscopy, Max Planck Institute
for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- International
Center for Quantum Materials, Peking University, 5 Yiheyuan Road, Haidian, Beijing 100871, China
| | - Fenglong Wang
- Department
of Molecular Spectroscopy, Max Planck Institute
for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Ruth A. Livingstone
- Department
of Molecular Spectroscopy, Max Planck Institute
for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Simon J. Schlegel
- Department
of Molecular Spectroscopy, Max Planck Institute
for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Tatsuhiko Ohto
- Graduate
School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, 560-8531, Japan
| | - Mischa Bonn
- Department
of Molecular Spectroscopy, Max Planck Institute
for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Yuki Nagata
- Department
of Molecular Spectroscopy, Max Planck Institute
for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- E-mail:
| | - Ellen H. G. Backus
- Department
of Molecular Spectroscopy, Max Planck Institute
for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- E-mail:
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83
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Suzuki Y, Nojima Y, Yamaguchi S. Vibrational Coupling at the Topmost Surface of Water Revealed by Heterodyne-Detected Sum Frequency Generation Spectroscopy. J Phys Chem Lett 2017; 8:1396-1401. [PMID: 28294626 DOI: 10.1021/acs.jpclett.7b00312] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Unraveling vibrational coupling is the key to consistently interpret vibrational spectra of complex molecular systems. The vibrational spectrum of the water surface heavily suffers from vibrational coupling, which hinders complete understanding of the molecular structure and dynamics of the water surface. Here we apply heterodyne-detected sum frequency generation spectroscopy to the water surface and accomplish the assignment of a weak vibrational band located at the lower energy side of the free OH stretch. We find that this band is due to a combination mode of the hydrogen-bonded OH stretch and a low-frequency intermolecular vibration, and this combination band appears in the surface vibrational spectrum through anharmonic vibrational coupling that takes place exclusively at the topmost surface.
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Affiliation(s)
- Yudai Suzuki
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University , 255 Shimo-Okubo, Sakura, Saitama 338-8570, Japan
| | - Yuki Nojima
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University , 255 Shimo-Okubo, Sakura, Saitama 338-8570, Japan
| | - Shoichi Yamaguchi
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University , 255 Shimo-Okubo, Sakura, Saitama 338-8570, Japan
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84
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Khatib R, Sulpizi M. Sum Frequency Generation Spectra from Velocity-Velocity Correlation Functions. J Phys Chem Lett 2017; 8:1310-1314. [PMID: 28247752 DOI: 10.1021/acs.jpclett.7b00207] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We developed an expression for the calculation of the sum frequency generation spectra (SFG) of water interfaces that is based on the projection of the atomic velocities on the local normal modes. Our approach permits one to obtain the SFG signal from suitable velocity-velocity correlation functions, reducing the computational cost to that of the accumulation of a molecular dynamics trajectory, and therefore cutting the overhead costs associated with the explicit calculation of the dipole moment and polarizability tensor. Our method permits to interpret the peaks in the spectrum in terms of local modes, also including the bending region. The results for the water-air interface, obtained using ab initio molecular dynamics simulations, are discussed in connection to recent phase resolved experimental data.
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Affiliation(s)
- Rémi Khatib
- Johannes Gutenberg University Mainz , Staudinger Weg 7, 55099 Mainz, Germany
| | - Marialore Sulpizi
- Johannes Gutenberg University Mainz , Staudinger Weg 7, 55099 Mainz, Germany
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85
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Hu Q, Zhao H, Ouyang S. Understanding water structure from Raman spectra of isotopic substitution H2O/D2O up to 573 K. Phys Chem Chem Phys 2017; 19:21540-21547. [DOI: 10.1039/c7cp02065a] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The OH/OD stretch band features on Raman spectra of isotopic substitution H2O/D2O at temperatures up to 573 K are correlated with a multi-structure model that water has five dominant hydrogen bonding configurations: tetrahedral, deformed tetrahedral, single donor, single hydrogen bonded water and free water.
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Affiliation(s)
- Qingcheng Hu
- Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
| | - Haiwen Zhao
- Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
| | - Shunli Ouyang
- Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
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