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Queiroz MH, Santos SA, Sampaio BS, Alves TV, Rivelino R. A theoretical study of the photochemistry of 1,3-cyclopentadiene and its cyano derivatives bound to a water dimer: Assessing reactivity of ionized clusters and possible photoproducts. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 320:124637. [PMID: 38878722 DOI: 10.1016/j.saa.2024.124637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/31/2024] [Accepted: 06/08/2024] [Indexed: 07/08/2024]
Abstract
We theoretically investigate the photoionization scenarios of molecular complexes involving cyclopentadiene and cyanocyclopentadiene bound to water dimers. Using electronic structure calculations within density-functional theory (DFT) and time dependent DFT (TD-DFT), we explore the potential photochemical pathways following ionization, and determine the charge transfer excitations related to the possible subsequent reactions. Our findings suggest that the investigated photochemical pathways of the hydrated complexes take place in two well-defined ultraviolet regions: (i) 8.2-9.5 eV for the cyclic compounds and (ii) 11.2-11.4 eV for the bound water dimer. We quantify how H-bonding effects can influence the photoionization channels. Before forming possible photoproducts, we also examine the regiospecificity of OH addition to 1,3-cyclopentadiene and its cyano derivatives We analyze our results in light of photoionization studies of jet-cooled molecular complexes and possible implications in astrochemical environments.
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Affiliation(s)
- Murillo H Queiroz
- Departamento de Físico-Química, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo 147, 40170-115 Salvador, Bahia, Brazil.
| | - Suelen A Santos
- Departamento de Físico-Química, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo 147, 40170-115 Salvador, Bahia, Brazil
| | - Bruno S Sampaio
- Departamento de Físico-Química, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo 147, 40170-115 Salvador, Bahia, Brazil
| | - Tiago V Alves
- Departamento de Físico-Química, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo 147, 40170-115 Salvador, Bahia, Brazil
| | - Roberto Rivelino
- Instituto de Física, Universidade Federal da Bahia, 40210-340 Salvador, Bahia, Brazil
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2
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Prakash M, Rudharachari Maiyelvaganan K, Giri Lakshman N, Gopalakrishnan C, Hochlaf M. Microhydration of small protonated polyaromatic hydrocarbons: a first principles study. Phys Chem Chem Phys 2024; 26:17489-17503. [PMID: 38804893 DOI: 10.1039/d3cp06000d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Using first principles methodology, we investigate the microsolvation of protonated benzene (BzH+), protonated coronene (CorH+) and protonated dodecabenzocoronene (DbcH+). Gas phase complexes of these small protonated polyaromatic hydrocarbons (H+PAHs) with mono-, di-, and tri-hydrated water molecules are considered. Their most stable forms are presented, where we discuss their structural, energetic aromaticity and IR and UV spectral features. In particular, we focus on the analysis of the bonding and various non-bonded interactions between these protonated aromatics and water clusters. The strength of non-bonded interactions is quantified and correlated with their electron density profiles. Furthermore, insights into the interfacial interactions and stability of these complexes were obtained through non-covalent index and symmetry-adapted perturbation theory (SAPT0) analyses. We also discuss the effects of the extension of the π aromatic cloud on the water solvation of these protonated aromatics. In particular, we extended our predictions for the S0 → S1 and S0 → T1 wavelength transitions of micro hydrated H+PAHs to deduce those of these species solvated in aqueous solution. The present findings should be useful for understanding, at the microscopic level, the effects of water interacting with H+PAHs, which are relevant for organic chemistry, astrochemistry, atmospheric chemistry, combustion and materials science.
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Affiliation(s)
- Muthuramalingam Prakash
- Computational Chemistry Research Laboratory (CCRL), Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur-603 203, Chengalpattu, Tamil Nadu, India.
| | - K Rudharachari Maiyelvaganan
- Computational Chemistry Research Laboratory (CCRL), Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur-603 203, Chengalpattu, Tamil Nadu, India.
| | - N Giri Lakshman
- Computational Chemistry Research Laboratory (CCRL), Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur-603 203, Chengalpattu, Tamil Nadu, India.
| | - C Gopalakrishnan
- Computational Chemistry Research Laboratory (CCRL), Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur-603 203, Chengalpattu, Tamil Nadu, India.
| | - Majdi Hochlaf
- Université Gustave Eiffel, COSYS/IMSE, 5 Bd Descartes, 77454, Champs Sur Marne, France.
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3
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Salzmann H, Rasmussen AP, Eaves JD, Weber JM. Competition between Water-Water Hydrogen Bonds and Water-π Bonds in Pyrene-Water Cluster Anions. J Phys Chem A 2024; 128:2772-2781. [PMID: 38564313 DOI: 10.1021/acs.jpca.4c00997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
We present infrared spectra and density functional theory calculations of hydrated pyrene anion clusters with up to four water molecules. The experimental spectra were acquired by using infrared Ar messenger photodissociation spectroscopy. Water molecules form clusters on the surface of the pyrene, forming hydrogen bonds with the π-system. The structures of the water clusters and their interaction with the π-system are encoded in OH stretching vibrational modes. We find that the interactions between water molecules are stronger than the interactions between water molecules and the π-system. While all clusters show multiple conformers, three- and four-membered rings are the lowest energy structures in the larger hydrates.
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Affiliation(s)
- Heinrich Salzmann
- JILA, University of Colorado, Boulder, Colorado 80309-0440, United States
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - Anne P Rasmussen
- JILA, University of Colorado, Boulder, Colorado 80309-0440, United States
- Department of Physics and Astronomy, Aarhus University, 8000 Aarhus, Denmark
| | - Joel D Eaves
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - J Mathias Weber
- JILA, University of Colorado, Boulder, Colorado 80309-0440, United States
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
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4
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LeMessurier N, Salzmann H, Leversee R, Weber JM, Eaves JD. Water-Hydrocarbon Interactions in Anionic Pyrene Monohydrate. J Phys Chem B 2024; 128:3200-3210. [PMID: 38526297 DOI: 10.1021/acs.jpcb.3c07777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Interactions between water and polycyclic aromatic hydrocarbons are essential in many aspects of chemistry, from interstellar and atmospheric processes to interfacial hydrophobicity and wetting phenomena. Despite their growing importance, the intermolecular potentials of the water-hydrocarbon interactions are underdeveloped compared to the water-water potentials, and there are similarly few experimental probes that are sensitive to the details of the water-hydrocarbon potential. We present a combined experimental and computational study of anionic pyrene monohydrate, one of the simplest water/hydrocarbon clusters. The action spectrum in the OH region of the mass-selected cluster ion provides a rigorous benchmark for intermolecular potentials and computational methodologies. We identify missing intermolecular interactions and shortcomings in conventional dynamics calculations by comparing experimental data to density functional theory and classical molecular dynamics calculations. Kinetic trapping is prevalent, even for one water molecule and one pyrene molecule, leading to slow equilibration in conventional molecular dynamics calculations, even on nanosecond time scales and at low temperatures (50 K). At constant energy, temperature fluctuations for the pair of molecules are substantial. Immersing the system in a bath of soft spheres and employing parallel tempering alleviates kinetic trapping and dampens temperature fluctuations, bringing the system closer to the thermodynamic limit. With such augmented sampling, a simple, flexible water model reproduces the line width and the asymmetric broadening of the symmetric OH stretching mode, which we assign to spectral diffusion. In the OH stretching region, dynamics calculations predict a more intense antisymmetric peak than experiments observe but do not predict the bimodal split symmetric peak that the experiments show. Our work suggests that electronic polarization, missing in the empirical force field, is responsible for the first discrepancy and that quantum nuclear effects, captured neither in density functional theory nor in classical dynamics, may be responsible for the second.
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Affiliation(s)
- Natalie LeMessurier
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - Heinrich Salzmann
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
- JILA, University of Colorado, Boulder, Colorado 80309-0440, United States
| | - River Leversee
- JILA, University of Colorado, Boulder, Colorado 80309-0440, United States
- Department of Physics, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - J Mathias Weber
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
- JILA, University of Colorado, Boulder, Colorado 80309-0440, United States
| | - Joel D Eaves
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
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5
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M Nair A, Leboucher H, Toucouere L, Zamith S, Joblin C, L'Hermite JM, Marciniak A, Simon A. Diversity of protonated mixed pyrene-water clusters investigated by collision induced dissociation. Phys Chem Chem Phys 2024; 26:5947-5961. [PMID: 38294026 PMCID: PMC10866126 DOI: 10.1039/d3cp05734h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 01/11/2024] [Indexed: 02/01/2024]
Abstract
Protonated mixed pyrene-water clusters, (Py)m(H2O)nH+, where m = [1-3] and n = [1-10], are generated using a cryogenic molecular cluster source. Subsequently, the mass-selected mixed clusters undergo controlled collisions with rare gases, and the resulting fragmentation mass spectra are meticulously analyzed to discern distinct fragmentation channels. Notably, protonated water cluster fragments emerge for n ≥ 3, whereas they are absent for n = 1 and 2. The experimental results are complemented by theoretical calculations of structures and energetics for (Py)(H2O)nH+ with n = [1-4]. These calculations reveal a shift in proton localization, transitioning from the pyrene molecule for n = 1 and 2 to water molecules for n ≥ 3. The results support a formation scenario wherein water molecules attach to protonated pyrene PyH+ seeds, and, by extension, to (Py)2H+ and (Py)3H+ seeds. Various isomers are identified, corresponding to potential protonation sites on the pyrene molecule. Protonated polycyclic aromatic hydrocarbons are likely to be formed in cold, dense interstellar clouds and protoplanetary disks due to the high proton affinity of these species. Our findings show that the presence of protonated PAHs in these environments could lead to the formation of water clusters and mixed carbon-water nanograins, having a potential impact on the water cycle in regions of planet formation.
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Affiliation(s)
- Arya M Nair
- Laboratoire Collisions Agrégats Réactivité (LCAR/FERMI), UMR5589, Université Toulouse III - Paul Sabatier and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France.
- Institut de Recherche en Astrophysique et Planétologie (IRAP), Université Toulouse III - Paul Sabatier, CNRS, CNES, 9 Avenue du Colonel Roche, F-31028 Toulouse, France
| | - Héloïse Leboucher
- Laboratoire de Chimie et Physique Quantiques LCPQ/FERMI, Université Toulouse III - Paul Sabatier and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France
| | - Lorris Toucouere
- Laboratoire de Chimie et Physique Quantiques LCPQ/FERMI, Université Toulouse III - Paul Sabatier and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France
| | - Sébastien Zamith
- Laboratoire Collisions Agrégats Réactivité (LCAR/FERMI), UMR5589, Université Toulouse III - Paul Sabatier and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France.
| | - Christine Joblin
- Institut de Recherche en Astrophysique et Planétologie (IRAP), Université Toulouse III - Paul Sabatier, CNRS, CNES, 9 Avenue du Colonel Roche, F-31028 Toulouse, France
| | - Jean-Marc L'Hermite
- Laboratoire Collisions Agrégats Réactivité (LCAR/FERMI), UMR5589, Université Toulouse III - Paul Sabatier and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France.
| | - Alexandre Marciniak
- Laboratoire Collisions Agrégats Réactivité (LCAR/FERMI), UMR5589, Université Toulouse III - Paul Sabatier and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France.
| | - Aude Simon
- Laboratoire de Chimie et Physique Quantiques LCPQ/FERMI, Université Toulouse III - Paul Sabatier and CNRS, 118 Route de Narbonne, F-31062 Toulouse, France
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6
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Lemmens AK, Ferrari P, Loru D, Batra G, Steber AL, Redlich B, Schnell M, Martinez-Haya B. Wetting of a Hydrophobic Surface: Far-IR Action Spectroscopy and Dynamics of Microhydrated Naphthalene. J Phys Chem Lett 2023; 14:10794-10802. [PMID: 38013434 DOI: 10.1021/acs.jpclett.3c02854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
The interaction of water and polycyclic aromatic hydrocarbons is of fundamental importance in areas as diverse as materials science and atmospheric and interstellar chemistry. The interplay between hydrogen bonding and dipole-π interactions results in subtle dynamics that are challenging to describe from first principles. Here, we employ far-IR action vibrational spectroscopy with the infrared free-electron laser FELIX to investigate naphthalene with one to three water molecules. We observe diffuse bands associated with intermolecular vibrational modes that serve as direct probes of the loose binding of water to the naphthalene surface. These signatures are poorly reproduced by static DFT or Møller-Plesset computations. Instead, a rationalization is achieved through Born-Oppenheimer Molecular Dynamics simulations, revealing the active mobility of water over the surface, even at low temperatures. Therefore, our work provides direct insights into the wetting interactions associated with shallow potential energy surfaces while simultaneously demonstrating a solid experimental-computational framework for their investigation.
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Affiliation(s)
- Alexander K Lemmens
- Chemical Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Radboud University, Institute of Molecules and Materials, HFML-FELIX, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - Piero Ferrari
- Radboud University, Institute of Molecules and Materials, HFML-FELIX, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - Donatella Loru
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Gayatri Batra
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Amanda L Steber
- Department of Physical and Inorganic Chemistry, Faculty of Science, University of Valladolid, 47011 Valladolid, Spain
| | - Britta Redlich
- Radboud University, Institute of Molecules and Materials, HFML-FELIX, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - Melanie Schnell
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Str. 1, 24118 Kiel, Germany
| | - Bruno Martinez-Haya
- Center for Nanoscience and Sustainable Technologies (CNATS), Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, 41013 Seville, Spain
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7
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George MAR, Dopfer O. Microhydration of the adamantane cation: intracluster proton transfer to solvent in [Ad(H 2O) n=1-5] + for n ≥ 3. Phys Chem Chem Phys 2023; 25:13593-13610. [PMID: 37144298 DOI: 10.1039/d3cp01514a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Radical cations of diamondoids are important intermediates in their functionalization reactions in polar solvents. To explore the role of the solvent at the molecular level, we characterize herein microhydrated radical cation clusters of the parent molecule of the diamondoid family, adamantane (C10H16, Ad), by infrared photodissociation (IRPD) spectroscopy of mass-selected [Ad(H2O)n=1-5]+ clusters. IRPD spectra of the cation ground electronic state recorded in the CH/OH stretch and fingerprint ranges reveal the first steps of this fundamental H-substitution reaction at the molecular level. Analysis of size-dependent frequency shifts with dispersion-corrected density functional theory calculations (B3LYP-D3/cc-pVTZ) provides detailed information about the acidity of the proton of Ad+ as a function of the degree of hydration, the structure of the hydration shell, and the strengths of the CH⋯O and OH⋯O hydrogen bonds (H-bonds) of the hydration network. For n = 1, H2O strongly activates the acidic C-H bond of Ad+ by acting as a proton acceptor in a strong CH⋯O ionic H-bond with cation-dipole configuration. For n = 2, the proton is almost equally shared between the adamantyl radical (C10H15, Ady) and the (H2O)2 dimer in a strong C⋯H⋯O ionic H-bond. For n ≥ 3, the proton is completely transferred to the H-bonded hydration network. The threshold for this size-dependent intracluster proton transfer to solvent is consistent with the proton affinities of Ady and (H2O)n and confirmed by collision-induced dissociation experiments. Comparison with other related microhydrated cations reveals that the acidity of the CH proton of Ad+ is in the range of strongly acidic phenol+ but lower than for cationic linear alkanes such as pentane+. Significantly, the presented IRPD spectra of microhydrated Ad+ provide the first spectroscopic molecular-level insight of the chemical reactivity and reaction mechanism of the important class of transient diamondoid radical cations in aqueous solution.
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Affiliation(s)
| | - Otto Dopfer
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany.
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8
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George MAR, Dopfer O. Microhydrated clusters of a pharmaceutical drug: infrared spectra and structures of amantadineH +(H 2O) n. Phys Chem Chem Phys 2023; 25:5529-5549. [PMID: 36723361 DOI: 10.1039/d2cp04556g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Solvation of pharmaceutical drugs has an important effect on their structure and function. Analysis of infrared photodissociation spectra of amantadineH+(H2O)n=1-4 clusters in the sensitive OH, NH, and CH stretch range by quantum chemical calculations (B3LYP-D3/cc-pVTZ) provides a first impression of the interaction of this pharmaceutically active cation with water at the molecular level. The size-dependent frequency shifts reveal detailed information about the acidity of the protons of the NH3+ group of N-protonated amantadineH+ (AmaH+) and the strength of the NH⋯O and OH⋯O hydrogen bonds (H-bonds) of the hydration network. The preferred cluster growth begins with sequential hydration of the NH3+ group by NH⋯O ionic H-bonds (n = 1-3), followed by the extension of the solvent network through OH⋯O H-bonds. However, smaller populations of cluster isomers with an H-bonded solvent network and free N-H bonds are already observed for n ≥ 2, indicating the subtle competition between noncooperative ion hydration and cooperative H-bonding. Interestingly, cyclic water ring structures are identified for n ≥ 3, each with two NH⋯O and two OH⋯O H-bonds. Despite the increasing destabilization of the N-H proton donor bonds upon gradual hydration, no proton transfer to the (H2O)n solvent cluster is observed up to n = 4. In addition to ammonium cluster ions, a small population of microhydrated iminium isomers is also detected, which is substantially lower for the hydrophilic H2O than for the hydrophobic Ar environment.
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Affiliation(s)
| | - Otto Dopfer
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany.
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9
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Rossich Molina E, Xu B, Kostko O, Ahmed M, Stein T. A combined theoretical and experimental study of small anthracene-water clusters. Phys Chem Chem Phys 2022; 24:23106-23118. [PMID: 35975620 DOI: 10.1039/d2cp02617a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water-cluster interactions with polycyclic aromatic hydrocarbons (PAHs) are of paramount interest in many chemical and biological processes. We report a study of anthracene monomers and dimers with water (up to four)-cluster systems utilizing molecular beam vacuum-UV photoionization mass spectrometry and density functional calculations. Structural loss in photoionization efficiency curves when adding water indicates that various isomers are generated, while theory indicates only a slight shift in energy in photoionization states of different isomers. Calculations reveal that the energetic tendency of water is to remain clustered and not to disperse around the PAH. Theoretically, we observe water confinement exclusively in the case of four water clusters and only when the anthracenes are in a cross configuration due to optimal OH⋯π interactions, indicating dependence on the size and structure of the PAH. Furthermore theory sheds light on the structural changes that occur in water upon ionization of anthracene, due to the optimal interactions of the resulting hole and water hydrogen atoms.
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Affiliation(s)
- Estefania Rossich Molina
- Fritz Haber Research Center for Molecular Dynamics, Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
| | - Bo Xu
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
| | - Oleg Kostko
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
| | - Musahid Ahmed
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
| | - Tamar Stein
- Fritz Haber Research Center for Molecular Dynamics, Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
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Chatterjee K, Roy TK, Khatri J, Schwaab G, Havenith M. Unravelling the microhydration frameworks of prototype PAH by infrared spectroscopy: naphthalene–(water)1–3. Phys Chem Chem Phys 2021; 23:14016-14026. [DOI: 10.1039/d1cp01789f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Microhydration structures of the prototypical PAH, naphthalene, are probed by IR spectroscopy in helium droplets. The sequential water addition produces an extended hydrogen-bonded hydration network bound via π hydrogen bond to the aromatic ring.
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Affiliation(s)
- Kuntal Chatterjee
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum
- Bochum
- Germany
| | - Tarun Kumar Roy
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum
- Bochum
- Germany
| | - Jai Khatri
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum
- Bochum
- Germany
| | - Gerhard Schwaab
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum
- Bochum
- Germany
| | - Martina Havenith
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum
- Bochum
- Germany
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11
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George MAR, Buttenberg F, Förstel M, Dopfer O. Microhydration of substituted diamondoid radical cations of biological relevance: infrared spectra of amantadine +-(H 2O) n = 1-3 clusters. Phys Chem Chem Phys 2020; 22:28123-28139. [PMID: 33290468 DOI: 10.1039/d0cp05299j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hydration of biomolecules and pharmaceutical compounds has a strong impact on their structure, reactivity, and function. Herein, we explore the microhydration structure around the radical cation of the widespread pharmaceutical drug amantadine (C16H15NH2, Ama) by infrared photodissociation (IRPD) spectroscopy of mass-selected Ama+Wn = 1-3 clusters (W = H2O) recorded in the NH, CH, and OH stretch range of the cation ground electronic state. Analysis of the size-dependent frequency shifts by dispersion-corrected density functional theory calculations (B3LYP-D3/cc-pVTZ) provides detailed information about the acidity of the protons of the NH2 group of Ama+ and the structure and strength of the NHO and OHO hydrogen bonds (H-bonds) of the hydration network. The preferred sequential cluster growth begins with hydration of the two acidic NH protons of the NH2 group (n = 1-2) and continues with an extension of the H-bonded hydration network by forming an OHO H-bond of the third W to one ligand in the first hydration subshell (n = 3), like in the W2 dimer. For n = 2, a minor population corresponds to Ama+W2 structures with a W2 unit attached to Ama+via a NHW2 H-bond. Although the N-H proton donor bonds are progressively destabilized by gradual microhydration, no proton transfer to the Wn solvent cluster is observed in the investigated size range (n ≤ 3). Besides the microhydration structure, we also obtain a first impression of the structure and IR spectrum of bare Ama+, as well as the effects of both ionization and hydration on the structure of the adamantyl cage. Comparison of Ama+ with aliphatic and aromatic primary amine radical cations reveals differences in the acidity of the NH2 group and the resulting interaction with W caused by substitution of the cycloalkyl cage.
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12
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Chatterjee K, Dopfer O. Microhydration of protonated biomolecular building blocks: protonated pyrimidine. Phys Chem Chem Phys 2020; 22:13092-13107. [PMID: 32490447 DOI: 10.1039/d0cp02110e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Protonation and hydration of biomolecules govern their structure, conformation, and function. Herein, we explore the microhydration structure in mass-selected protonated pyrimidine-water clusters (H+Pym-Wn, n = 1-4) by a combination of infrared photodissociation spectroscopy (IRPD) between 2450 and 3900 cm-1 and density functional theory (DFT) calculations at the dispersion-corrected B3LYP-D3/aug-cc-pVTZ level. We further present the IR spectrum of H+Pym-N2 to evaluate the effect of solvent polarity on the intrinsic molecular parameters of H+Pym. Our combined spectroscopic and computational approach unequivocally shows that protonation of Pym occurs at one of the two equivalent basic ring N atoms and that the ligands in H+Pym-L (L = N2 or W) preferentially form linear H-bonds to the resulting acidic NH group. Successive addition of water ligands results in the formation of a H-bonded solvent network which increasingly weakens the NH group. Despite substantial activation of the N-H bond upon microhydration, no intracluster proton transfer occurs up to n = 4 because of the balance of relative proton affinities of Pym and Wn and the involved solvation energies. Comparison to neutral Pym-Wn clusters reveals the drastic effects of protonation on microhydration with respect to both structure and interaction strength.
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Affiliation(s)
- Kuntal Chatterjee
- Institut für Optik und Atomare Physik, TU Berlin, Hardenbergstr. 36, 10623 Berlin, Germany.
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13
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Chatterjee K, Dopfer O. Protonation of Naphthalene–(Water)n Nanoclusters: Intracluster Proton Transfer to Hydration Shell Revealed by Infrared Photodissociation Spectroscopy. J Phys Chem A 2020; 124:1134-1151. [DOI: 10.1021/acs.jpca.9b11779] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kuntal Chatterjee
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany
| | - Otto Dopfer
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany
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14
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Zhang H, Cao W, Yuan Q, Wang L, Zhou X, Liu S, Wang XB. Spectroscopic evidence for intact carbonic acid stabilized by halide anions in the gas phase. Phys Chem Chem Phys 2020; 22:19459-19467. [DOI: 10.1039/d0cp02338h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The whole series of halide anions can stabilize elusive carbonic acid in the gas phase through dual hydrogen bonds.
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Affiliation(s)
- Hanhui Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Wenjin Cao
- Physical Sciences Division
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Qinqin Yuan
- Physical Sciences Division
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Lei Wang
- Hefei National Laboratory for Physical Sciences at the Microscale
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Xiaoguo Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Shilin Liu
- Hefei National Laboratory for Physical Sciences at the Microscale
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Xue-Bin Wang
- Physical Sciences Division
- Pacific Northwest National Laboratory
- Richland
- USA
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15
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Klyne J, Dopfer O. Microhydration of protonated 5-hydroxyindole revealed by infrared spectroscopy. Phys Chem Chem Phys 2019; 21:2706-2718. [PMID: 30663737 DOI: 10.1039/c8cp06950f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Controlled microsolvation of protonated aromatic biomolecules with water is fundamental to understand proton transfer reactions in aqueous environments. We measured infrared photodissociation (IRPD) spectra of mass-selected microhydrates of protonated 5-hydroxyindole (5HIH+-Wn, W = H2O, n = 1-3) in the OH and NH stretch ranges (2700-3800 cm-1), which are sensitive to the spectroscopic characteristics of interior solvation, water network formation, and proton transfer to solvent. Analysis of the IRPD spectra by dispersion-corrected density functional theory calculations (B3LYP-D3/aug-cc-pVTZ) reveals the coexistence of C3- and C4-protonated carbenium ions, 5HIH+(C3) and 5HIH+(C4), as well as the O-protonated oxonium ion, 5HIH+(O). Monohydrated 5HIH+-W clusters are formed by hydrogen-bonding (H-bonding) of the first water to the most acidic functional group, namely, the NH group in the case of 5HIH+(C3), the OH group for 5HIH+(C4), and the OH2 group for 5HIH+(O). The latter benefits from its twofold degeneracy and the outstandingly high binding energy of D0 ∼ 100 kJ mol-1. Larger 5HIH+-W2/3 clusters preferably grow (i) by H-bonding of the second water to the remaining vacant functional group and and/or (ii) by formation of W2 water chains at the respective most acidic functional group. Our IRPD spectra of 5HIH+-Wn do not indicate any proton transfer to the solvent up to n = 3, in line with the proton affinities of 5HI and Wn. Comparison of 5HIH+-Wn to neutral 5HI-W and cationic 5HI+-Wn clusters elucidates the impact of different charge states on the topology of the initial solvation shell. Furthermore, to access the influence of the size of the arene ion and a second functional group, we draw a comparison to microhydration of protonated phenol.
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Affiliation(s)
- Johanna Klyne
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany.
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16
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Chatterjee K, Dopfer O. Intracluster proton transfer in protonated benzonitrile–(H2O)n≤6 nanoclusters: hydrated hydronium core for n ≥ 2. Phys Chem Chem Phys 2019; 21:25226-25246. [DOI: 10.1039/c9cp05042f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Infrared spectroscopy and density functional theory calculations of protonated benzonitrile–(H2O)n clusters reveal proton transfer to solvent for n ≥ 2 and the drastic effects of the aromatic dopant molecule on the network of H+(H2O)n+1.
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Affiliation(s)
- Kuntal Chatterjee
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Otto Dopfer
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
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17
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Xu B, Stein T, Ablikim U, Jiang L, Hendrix J, Head-Gordon M, Ahmed M. Probing solvation and reactivity in ionized polycyclic aromatic hydrocarbon–water clusters with photoionization mass spectrometry and electronic structure calculations. Faraday Discuss 2019; 217:414-433. [DOI: 10.1039/c8fd00229k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synchrotron based mass spectrometry coupled with theoretical calculations provides insight into polycyclic aromatic hydrocarbon water interactions.
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Affiliation(s)
- Bo Xu
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Tamar Stein
- Department of Chemistry
- University of California
- Berkeley
- USA
| | - Utuq Ablikim
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Ling Jiang
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- People’s Republic of China
| | - Josie Hendrix
- Department of Chemistry
- University of California
- Berkeley
- USA
| | - Martin Head-Gordon
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
- Department of Chemistry
| | - Musahid Ahmed
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
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18
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Chatterjee K, Dopfer O. Microhydration of PAH + cations: evolution of hydration network in naphthalene +-(H 2O) n clusters ( n ≤ 5). Chem Sci 2018; 9:2301-2318. [PMID: 29719704 PMCID: PMC5903421 DOI: 10.1039/c7sc05124g] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 01/24/2018] [Indexed: 12/15/2022] Open
Abstract
The interaction of polycyclic aromatic hydrocarbon molecules with water (H2O = W) is of fundamental importance in chemistry and biology. Herein, size-selected microhydrated naphthalene cation nanoclusters, Np+-W n (n ≤ 5), are characterized by infrared photodissociation (IRPD) spectroscopy in the C-H and O-H stretch range to follow the stepwise evolution of the hydration network around this prototypical PAH+ cation. The IRPD spectra are highly sensitive to the hydration structure and are analyzed by dispersion-corrected density functional theory calculations (B3LYP-D3/aug-cc-pVTZ) to determine the predominant structural isomers. For n = 1, W forms a bifurcated CH···O ionic hydrogen bond (H-bond) to two acidic CH protons of the bicyclic ring. For n ≥ 2, the formation of H-bonded solvent networks dominates over interior ion solvation, because of strong cooperativity in the former case. For n ≥ 3, cyclic W n solvent structures are attached to the CH protons of Np+. However, while for n = 3 the W3 ring binds in the CH···O plane to Np+, for n ≥ 4 the cyclic W n clusters are additionally stabilized by stacking interactions, leading to sandwich-type configurations. No intracluster proton transfer from Np+ to the W n solvent is observed in the studied size range (n ≤ 5), because of the high proton affinity of the naphthyl radical compared to W n . This is different from microhydrated benzene+ clusters, (Bz-W n )+, for which proton transfer is energetically favorable for n ≥ 4 due to the much lower proton affinity of the phenyl radical. Hence, because of the presence of polycyclic rings, the interaction of PAH+ cations with W is qualitatively different from that of monocyclic Bz+ with respect to interaction strength, structure of the hydration shell, and chemical reactivity. These differences are rationalized and quantified by quantum chemical analysis using the natural bond orbital (NBO) and noncovalent interaction (NCI) approaches.
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Affiliation(s)
- Kuntal Chatterjee
- Institut für Optik und Atomare Physik , Technische Universität Berlin , Hardenbergstr. 36 , 10623 Berlin , Germany . ; Tel: +49 30 31423018
| | - Otto Dopfer
- Institut für Optik und Atomare Physik , Technische Universität Berlin , Hardenbergstr. 36 , 10623 Berlin , Germany . ; Tel: +49 30 31423018
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19
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Bouchet A, Klyne J, Ishiuchi SI, Dopfer O, Fujii M, Zehnacker A. Stereochemistry-dependent structure of hydrogen-bonded protonated dimers: the case of 1-amino-2-indanol. Phys Chem Chem Phys 2018; 20:12430-12443. [DOI: 10.1039/c8cp00787j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Stereochemistry effects on the structure of molecular aggregates are studied in the prototypical 1-amino-2-indanol. Conformer-selective IR-UV double resonance spectroscopy reveals how stereochemistry shapes its dimers.
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Affiliation(s)
- Aude Bouchet
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Johanna Klyne
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- Berlin
- Germany
| | - Shun-ichi Ishiuchi
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Otto Dopfer
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- Berlin
- Germany
| | - Masaaki Fujii
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Anne Zehnacker
- Institut des Sciences Moléculaires d’Orsay (ISMO)
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- F-91405 Orsay
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20
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Hou GL, Wang XB, Valiev M. Formation of (HCOO–)(H2SO4) Anion Clusters: Violation of Gas-Phase Acidity Predictions. J Am Chem Soc 2017; 139:11321-11324. [DOI: 10.1021/jacs.7b05964] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Gao-Lei Hou
- Physical
Sciences Division, Pacific Northwest National Laboratory, 902 Battelle
Boulevard, P.O. Box 999, MS K8-88, Richland, Washington 99352, United States
| | - Xue-Bin Wang
- Physical
Sciences Division, Pacific Northwest National Laboratory, 902 Battelle
Boulevard, P.O. Box 999, MS K8-88, Richland, Washington 99352, United States
| | - Marat Valiev
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
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21
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Chatterjee K, Dopfer O. Infrared spectroscopy of hydrated polycyclic aromatic hydrocarbon cations: naphthalene+–water. Phys Chem Chem Phys 2017; 19:32262-32271. [DOI: 10.1039/c7cp06893j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of infrared spectroscopy and quantum chemical calculations unravels the salient properties of the bifurcated CH⋯O ionic hydrogen bond typical for the PAH+–H2O interaction.
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Affiliation(s)
- Kuntal Chatterjee
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Otto Dopfer
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
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22
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Bouchet A, Schütz M, Dopfer O. Competing Insertion and External Binding Motifs in Hydrated Neurotransmitters: Infrared Spectra of Protonated Phenylethylamine Monohydrate. Chemphyschem 2015; 17:232-43. [PMID: 26584245 DOI: 10.1002/cphc.201500939] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Indexed: 01/29/2023]
Abstract
Hydration has a drastic impact on the structure and function of flexible biomolecules, such as aromatic ethylamino neurotransmitters. The structure of monohydrated protonated phenylethylamine (H(+) PEA-H2 O) is investigated by infrared photodissociation (IRPD) spectroscopy of cold cluster ions by using rare-gas (Rg=Ne and Ar) tagging and dispersion-corrected density functional theory calculations at the B3LYP-D3/aug-cc-pVTZ level. Monohydration of this prototypical neurotransmitter gives an insight into the first step of the formation of its solvation shell, especially regarding the competition between intra- and intermolecular interactions. The spectra of Rg-tagged H(+) PEA-H2 O reveal the presence of a stable insertion structure in which the water molecule is located between the positively charged ammonium group and the phenyl ring of H(+) PEA, acting both as a hydrogen bond acceptor (NH(+) ⋅⋅⋅O) and donor (OH⋅⋅⋅π). Two other nearly equivalent isomers, in which water is externally H bonded to one of the free NH groups, are also identified. The balance between insertion and external hydration strongly depends on temperature.
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Affiliation(s)
- Aude Bouchet
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany
| | - Markus Schütz
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany
| | - Otto Dopfer
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany.
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23
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Houmøller J, Wanko M, Rubio A, Nielsen SB. Effect of a Single Water Molecule on the Electronic Absorption by o- and p-Nitrophenolate: A Shift to the Red or to the Blue? J Phys Chem A 2015; 119:11498-503. [PMID: 26549521 DOI: 10.1021/acs.jpca.5b08634] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Many photoactive biomolecules are anions and exhibit ππ* optical transitions but with a degree of charge transfer (CT) character determined by the local environment. The phenolate moiety is a common structural motif among biochromophores and luminophores, and nitrophenolates are good model systems because the nitro substituent allows for CT-like transitions. Here we report gas-phase absorption spectra of o- and p-nitrophenolate·H2O complexes to decipher the effect of just one H2O and compare them with ab initio calculations of vertical excitation energies. The experimental band maximum is at 3.01 and 3.00 eV for ortho and para isomers, respectively, and is red-shifted by 0.10 and 0.13 eV relative to the bare ions, respectively. These shifts indicate that the transition has become more CT-like because of localization of negative charge on the phenolate oxygen, i.e., diminished delocalization of the negative excess charge. However, the transition bears less CT than that of m-nitrophenolate·H2O because this complex absorbs further to the red (2.56 eV). Our work emphasizes the importance of local perturbations: one water causes a larger shift than experienced in bulk for para isomer and almost the full shift for ortho isomer. Predicting microenvironmental effects in the boundary between CT and non-CT with high accuracy is nontrivial. However, in agreement with experiment, our calculations show a competition between the effects of electronic delocalization and electrostatic interaction with the solvent molecule. As a result, the excitation energy of ortho and para isomers is less sensitive to hydration than that of the meta isomer because donor and acceptor orbitals are only weakly coupled in the meta isomer.
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Affiliation(s)
- Jørgen Houmøller
- Department of Physics and Astronomy, Aarhus University , DK-8000 Aarhus C, Denmark
| | - Marius Wanko
- Nano-Bio Spectroscopy Group and ETSF, Dpto. Fisica de Materiales, Universidad del País Vasco, CFM CSIC-UPV/EHU-MPC & DIPC, 20018 San Sebastián, Spain
| | - Angel Rubio
- Nano-Bio Spectroscopy Group and ETSF, Dpto. Fisica de Materiales, Universidad del País Vasco, CFM CSIC-UPV/EHU-MPC & DIPC, 20018 San Sebastián, Spain.,Max Planck Institute for the Structure and Dynamics of Matter and Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany
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24
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Schütz M, Sakota K, Moritz R, Schmies M, Ikeda T, Sekiya H, Dopfer O. Simultaneous Interaction of Hydrophilic and Hydrophobic Solvents with Ethylamino Neurotransmitter Radical Cations: Infrared Spectra of Tryptamine+-(H2O)m-(N2)n Clusters (m,n ≤ 3). J Phys Chem A 2015; 119:10035-51. [DOI: 10.1021/acs.jpca.5b07408] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Markus Schütz
- Institut
für Optik und Atomare Physik, Technische Universität Berlin, D-10623 Berlin, Germany
| | - Kenji Sakota
- Department
of Chemistry, Faculty of Sciences, and Department of Molecular Chemistry,
Graduate School of Science, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Raphael Moritz
- Institut
für Optik und Atomare Physik, Technische Universität Berlin, D-10623 Berlin, Germany
| | - Matthias Schmies
- Institut
für Optik und Atomare Physik, Technische Universität Berlin, D-10623 Berlin, Germany
| | - Takamasa Ikeda
- Department
of Chemistry, Faculty of Sciences, and Department of Molecular Chemistry,
Graduate School of Science, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Hiroshi Sekiya
- Department
of Chemistry, Faculty of Sciences, and Department of Molecular Chemistry,
Graduate School of Science, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Otto Dopfer
- Institut
für Optik und Atomare Physik, Technische Universität Berlin, D-10623 Berlin, Germany
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25
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Alata I, Scuderi D, Lepere V, Steinmetz V, Gobert F, Thiao-Layel L, Le Barbu-Debus K, Zehnacker-Rentien A. Exotic Protonated Species Produced by UV-Induced Photofragmentation of a Protonated Dimer: Metastable Protonated Cinchonidine. J Phys Chem A 2015; 119:10007-15. [DOI: 10.1021/acs.jpca.5b06506] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ivan Alata
- Institut des Sciences
Moléculaires d’Orsay (ISMO), CNRS, Univ Paris-Sud, Université Paris Saclay, F-91405 Orsay, France
| | - Debora Scuderi
- Laboratoire de
Chimie Physique (LCP), CNRS, Univ Paris-Sud, Université Paris Saclay, F-91405 Orsay, France
| | - Valeria Lepere
- Institut des Sciences
Moléculaires d’Orsay (ISMO), CNRS, Univ Paris-Sud, Université Paris Saclay, F-91405 Orsay, France
| | - Vincent Steinmetz
- Laboratoire de
Chimie Physique (LCP), CNRS, Univ Paris-Sud, Université Paris Saclay, F-91405 Orsay, France
| | - Fabrice Gobert
- Laboratoire de
Chimie Physique (LCP), CNRS, Univ Paris-Sud, Université Paris Saclay, F-91405 Orsay, France
| | - Loïc Thiao-Layel
- Laboratoire de
Chimie Physique (LCP), CNRS, Univ Paris-Sud, Université Paris Saclay, F-91405 Orsay, France
| | - Katia Le Barbu-Debus
- Institut des Sciences
Moléculaires d’Orsay (ISMO), CNRS, Univ Paris-Sud, Université Paris Saclay, F-91405 Orsay, France
| | - Anne Zehnacker-Rentien
- Institut des Sciences
Moléculaires d’Orsay (ISMO), CNRS, Univ Paris-Sud, Université Paris Saclay, F-91405 Orsay, France
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26
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Esteves-López N, Dedonder-Lardeux C, Jouvet C. Excited state of protonated benzene and toluene. J Chem Phys 2015; 143:074303. [DOI: 10.1063/1.4928692] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Natalia Esteves-López
- Aix-Marseille Université, CNRS, UMR-7345, Physique des Interactions Ioniques et Moléculaires (PIIM), Marseille, France
| | - Claude Dedonder-Lardeux
- Aix-Marseille Université, CNRS, UMR-7345, Physique des Interactions Ioniques et Moléculaires (PIIM), Marseille, France
| | - Christophe Jouvet
- Aix-Marseille Université, CNRS, UMR-7345, Physique des Interactions Ioniques et Moléculaires (PIIM), Marseille, France
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27
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Klyne J, Schmies M, Fujii M, Dopfer O. Stepwise Microhydration of Aromatic Amide Cations: Formation of Water Solvation Network Revealed by Infrared Spectra of Formanilide+–(H2O)n Clusters (n ≤ 5). J Phys Chem B 2015; 119:1388-406. [DOI: 10.1021/jp511421h] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Johanna Klyne
- Institut
für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany
| | - Matthias Schmies
- Institut
für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany
| | - Masaaki Fujii
- Chemical
Resources Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Otto Dopfer
- Institut
für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany
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28
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Shishido R, Li YC, Tsai CW, Bing D, Fujii A, Kuo JL. An infrared spectroscopic and theoretical study on (CH3)3N–H+–(H2O)n, n = 1–22: highly polarized hydrogen bond networks of hydrated clusters. Phys Chem Chem Phys 2015; 17:25863-76. [DOI: 10.1039/c5cp01487e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Highly polarized water networks are found in the micro hydaration of protonated trimethylamine.
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Affiliation(s)
- Ryunosuke Shishido
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Ying-Cheng Li
- Department of Physics
- National Taiwan University
- Taipei 10617
- Taiwan
- Institute of Atomic and Molecular Sciences
| | - Chen-Wei Tsai
- Department of Physics
- National Taiwan University
- Taipei 10617
- Taiwan
- Institute of Atomic and Molecular Sciences
| | - Dan Bing
- Pujiang Institute
- Nanjing Tech University
- Nanjing
- China
| | - Asuka Fujii
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Jer-Lai Kuo
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei
- Taiwan
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29
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Sohn WY, Ishiuchi SI, Çarçabal P, Oba H, Fujii M. UV–UV hole burning and IR dip spectroscopy of homophenylalanine by laser desorption supersonic jet technique. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2014.10.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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30
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Dopfer O, Patzer A, Chakraborty S, Alata I, Omidyan R, Broquier M, Dedonder C, Jouvet C. Electronic and vibrational spectra of protonated benzaldehyde-water clusters, [BZ-(H2O)n≤5]H+: Evidence for ground-state proton transfer to solvent for n ≥ 3. J Chem Phys 2014; 140:124314. [DOI: 10.1063/1.4869341] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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32
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Houmøller J, Wanko M, Støchkel K, Rubio A, Brøndsted Nielsen S. On the Effect of a Single Solvent Molecule on the Charge-Transfer Band of a Donor–Acceptor Anion. J Am Chem Soc 2013; 135:6818-21. [DOI: 10.1021/ja4025275] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jørgen Houmøller
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus
C, Denmark
| | - Marius Wanko
- Nano-Bio Spectroscopy
Group
and ETSF Scientific Development Centre, Departamento de Fisica de
Materiales, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Centro de Fisica de
Materiales CSIC-UPV/EHU-MPC and DIPC, Av. Tolosa 72, E-20018 San Sebastian,
Spain
| | - Kristian Støchkel
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus
C, Denmark
| | - Angel Rubio
- Nano-Bio Spectroscopy
Group
and ETSF Scientific Development Centre, Departamento de Fisica de
Materiales, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Centro de Fisica de
Materiales CSIC-UPV/EHU-MPC and DIPC, Av. Tolosa 72, E-20018 San Sebastian,
Spain
| | - Steen Brøndsted Nielsen
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus
C, Denmark
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Patzer A, Schütz M, Jouvet C, Dopfer O. Experimental Observation and Quantum Chemical Characterization of the S1 ← S0 Transition of Protonated Naphthalene–Argon Clusters. J Phys Chem A 2013; 117:9785-93. [DOI: 10.1021/jp312581v] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexander Patzer
- Institut für Optik und
Atomare Physik, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany
| | - Markus Schütz
- Institut für Optik und
Atomare Physik, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany
| | - Christophe Jouvet
- Laboratoire de Physique des Interactions
Ioniques et Moléculaires
(PIIM/UMR CNRS 7345), Aix Marseille Université, Avenue Escadrille Normandie-Niémen, 13397 Marseille cedex
20, France
| | - Otto Dopfer
- Institut für Optik und
Atomare Physik, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany
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Capello MC, Broquier M, Dedonder-Lardeux C, Jouvet C, Pino GA. Fast excited state dynamics in the isolated 7-azaindole-phenol H-bonded complex. J Chem Phys 2013; 138:054304. [DOI: 10.1063/1.4789426] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Affiliation(s)
- Michael A. Duncan
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United
States
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