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Hsu J, Eid AM, Randall C, Houache MSE, Abu-Lebdeh Y, Al-Abadleh HA. Mechanistic In Situ ATR-FTIR Studies on the Adsorption and Desorption of Major Intermediates in CO 2 Electrochemical Reduction on CuO Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:14789-14798. [PMID: 36417502 DOI: 10.1021/acs.langmuir.2c02445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Increasing levels of carbon dioxide (CO2) from human activities is affecting the ecosystem and civilization as we know it. CO2 removal from the atmosphere and emission reduction by heavy industries through carbon capture, utilization, and storage (CCUS) technologies to store or convert CO2 to useful products or fuels is a popular approach to meet net zero targets by 2050. One promising process of CO2 removal and conversion is CO2 electrochemical reduction (CO2ER) using metal and metal oxide catalysts, particularly copper-based materials. However, the current limitations of CO2ER stem from the low product selectivity of copper electrocatalysts due to existing knowledge gaps of the reaction mechanisms using surfaces that normally have native oxide layers. Here, we report systematic control studies of the surface interactions of major intermediates in CO2ER, formate, bicarbonate, and acetate, with CuO nanoparticles in situ and in real time using attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR). Spectra were collected as a function of concentration, pH, and time in the dark and the in absence of added electrolytes. Isotopic exchange experiments were also performed to elucidate the type of surface complexes from H/D exchange. Our results show that the organics and bicarbonate form mostly outer-sphere complexes mediated by hydrogen bonding with CuO nanoparticles with Gibbs free energy of adsorption of about -25 kJ mol-1. The desorption kinetics of the surface species indicated relatively fast and slow regions reflective of the heterogeneity of sites that affect the strength of hydrogen bonding. These results suggest that hydrogen bonding, whether intermolecular or with surface sites on CuO nanoparticles, might be playing a more important role in the CO2ER reaction mechanism than previously thought, contributing to the lack of product selectivity.
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Affiliation(s)
- Jason Hsu
- Department of Chemistry and Biochemistry, Wilfrid Laurier University, Waterloo, ONN2L 3C5, Canada
| | - Ahmed M Eid
- Department of Chemistry and Biochemistry, Wilfrid Laurier University, Waterloo, ONN2L 3C5, Canada
| | - Connor Randall
- Department of Chemistry and Biochemistry, Wilfrid Laurier University, Waterloo, ONN2L 3C5, Canada
| | - Mohamed S E Houache
- National Research Council of Canada, Energy, Mining and EnvironmentOttawa, ONK1A 0R6, Canada
| | - Yaser Abu-Lebdeh
- National Research Council of Canada, Energy, Mining and EnvironmentOttawa, ONK1A 0R6, Canada
| | - Hind A Al-Abadleh
- Department of Chemistry and Biochemistry, Wilfrid Laurier University, Waterloo, ONN2L 3C5, Canada
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2
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Farag AA, Eid A, Shaban M, Mohamed EA, Raju G. Integrated modeling, surface, electrochemical, and biocidal investigations of novel benzothiazoles as corrosion inhibitors for shale formation well stimulation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116315] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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3
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Lin C, Darling GR, Forster M, McBride F, Massey A, Hodgson A. Hydration of a 2D Supramolecular Assembly: Bitartrate on Cu(110). J Am Chem Soc 2020; 142:13814-13822. [PMID: 32692550 PMCID: PMC7458425 DOI: 10.1021/jacs.0c04747] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
![]()
Hydration
layers play a key role in many technical and biological
systems, but our understanding of these structures remains very limited.
Here, we investigate the molecular processes driving hydration of
a chiral metal–organic surface, bitartrate on Cu(110), which
consists of hydrogen-bonded bitartrate rows separated by exposed Cu.
Initially water decorates the metal channels, hydrogen bonding to
the exposed O ligands that bind bitartrate to Cu, but does not wet
the bitartrate rows. At higher temperature, water inserts into the
structure, breaks the existing intermolecular hydrogen bonds, and
changes the adsorption site and footprint. Calculations show this
process is driven by the creation of stable adsorption sites between
the carboxylate ligands, to allow hydration of O–Cu ligands
within the interior of the structure. This work suggests that hydration
of polar metal–adsorbate ligands will be a dominant factor
in many systems during surface hydration or self-assembly from solution.
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Affiliation(s)
- Chenfang Lin
- Surface Science Research Centre and Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - George R Darling
- Surface Science Research Centre and Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - Matthew Forster
- Surface Science Research Centre and Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - Fiona McBride
- Surface Science Research Centre and Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - Alan Massey
- Surface Science Research Centre and Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - Andrew Hodgson
- Surface Science Research Centre and Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
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4
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Shaban M, Eid A, Farag R, Negm N, Fadda A, Migahed M. Novel trimeric cationic pyrdinium surfactants as bi-functional corrosion inhibitors and antiscalants for API 5L X70 carbon steel against oilfield formation water. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112817] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Kartouzian A. Spectroscopy for model heterogeneous asymmetric catalysis. Chirality 2019; 31:641-657. [PMID: 31318108 DOI: 10.1002/chir.23113] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 07/02/2019] [Indexed: 12/31/2022]
Abstract
Heterogeneous catalysis has vastly benefited from investigations performed on model systems under well-controlled conditions. The application of most of the techniques utilized for such studies is not feasible for asymmetric reactions as enantiomers possess identical physical and chemical properties unless while interacting with polarized light and other chiral entities. A thorough investigation of a heterogeneous asymmetric catalytic process should include probing the catalyst prior to, during, and after the reaction as well as the analysis of reaction products to evaluate the achieved enantiomeric excess. I present recent studies that demonstrate the strength of chiroptical spectroscopic methods to tackle the challenges in investigating model heterogeneous asymmetric catalysis covering all the abovementioned aspects.
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Affiliation(s)
- Aras Kartouzian
- Lehrstuhl für physikalische Chemie, Catalysis Research Center, Technische Universität München, Garching bei München, Germany
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6
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Darling GR, Forster M, Lin C, Liu N, Raval R, Hodgson A. Chiral segregation driven by a dynamical response of the adsorption footprint to the local adsorption environment: bitartrate on Cu(110). Phys Chem Chem Phys 2017; 19:7617-7623. [DOI: 10.1039/c7cp00622e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Bitartrate, a strongly bound chiral modifier, is able to restructure its adsorption footprint on Cu(110) in response to local adsorbates.
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Affiliation(s)
- G. R. Darling
- Surface Science Research Centre and Department of Chemistry
- University of Liverpool
- Liverpool L69 3BX
- UK
| | - M. Forster
- Surface Science Research Centre and Department of Chemistry
- University of Liverpool
- Liverpool L69 3BX
- UK
| | - C. Lin
- Surface Science Research Centre and Department of Chemistry
- University of Liverpool
- Liverpool L69 3BX
- UK
| | - N. Liu
- Surface Science Research Centre and Department of Chemistry
- University of Liverpool
- Liverpool L69 3BX
- UK
| | - R. Raval
- Surface Science Research Centre and Department of Chemistry
- University of Liverpool
- Liverpool L69 3BX
- UK
| | - A. Hodgson
- Surface Science Research Centre and Department of Chemistry
- University of Liverpool
- Liverpool L69 3BX
- UK
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7
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Abstract
Molecules provide versatile building blocks, with a vast palette of functionalities and an ability to assemble via supramolecular and covalent bonding to generate remarkably diverse macromolecular systems. This is abundantly displayed by natural systems that have evolved on Earth, which exploit both supramolecular and covalent protocols to create the machinery of life. Importantly, these molecular assemblies deliver functions that are reproducible, adaptable, finessed and responsive. There is now a real need to translate complex molecular systems to surfaces and interfaces in order to engineer 21st century nanotechnology. ‘Top-down’ and ‘bottom-up’ approaches, and utilisation of supramolecular and covalent assembly, are currently being used to create a range of molecular architectures and functionalities at surfaces. In parallel, advanced tools developed for interrogating surfaces and interfaces have been deployed to capture the complexities of molecular behaviour at interfaces from the nanoscale to the macroscale, while advances in theoretical modelling are delivering insights into the balance of interactions that determine system behaviour. A few examples are provided here that outline molecular behaviour at surfaces, and the level of complexity that is inherent in such systems.
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Affiliation(s)
- R. Raval
- Surface Science Research Centre
- Department of Chemistry
- University of Liverpool
- Liverpool
- UK
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8
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Raouafi F, Seydou M, Lassoued K, Taleb A, Diawara B. First-principles investigation of methanethiol adsorption and dissociation mechanisms on the high-Miller-index vicinal surface Cu(4 1 0). JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:175001. [PMID: 27028163 DOI: 10.1088/0953-8984/28/17/175001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this work, we present detailed investigations of methanethiol adsorption on a Cu(4 1 0) surface within the framework of the self-consistent first-principles calculations as implemented in the Vienna ab initio simulation package (VASP). In particular, the adsorption sites, the surface coverage rate and electronic properties have been determined and compared to experimental values. The results indicate that the favorable adsorption site in the case of low coverage rate is a bridge on the step followed by the hollow site on the terrace. The adsorption significantly affects the outermost layer of the surface mainly for a higher coverage rate in a (2 × 2) supercell. The nature of the chemisorption process on the surface is analyzed by means of the density of states which, combined with charge density difference and atomic charge calculations, confirms the ionic character of the S-Cu bond. The specific effect of the presence of steps is highlighted by comparing the adsorption on the (1 0 0) terrace to the adsorption on the extended Cu(1 0 0) surface. Compared to the flat Cu(1 0 0), it is found here that while the stability is almost the same at p(2 × 2) coverage, the CH3S/Cu(4 1 0) becomes more stable than CH3S/Cu(1 0 0) at c(2 × 2) coverage with 0.30 eV per molecule. The mechanism of methanethiol dissociation is explored by the nudged elastic band method and demonstrates that the most favorable path is dissociation followed by migration of hydrogen from the step to its most stable position (hollow on the terrace) with energy barriers less than 0.5 eV.
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Affiliation(s)
- Faycal Raouafi
- Laboratoire de physico-chimie des microstructures et microsystèmes, IPEST La Marsa, Tunisia
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9
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Forster M, Raval R. Simple rules and the emergence of complexity in surface chirality. Chem Commun (Camb) 2016; 52:14075-14084. [DOI: 10.1039/c6cc06523f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Surface chirality arising from self-organized molecular monolayers may manifest both a handedness and footedness, leading to a dual level of chiral expression.
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Affiliation(s)
- M. Forster
- Surface Science Research Centre
- Department of Chemistry
- University of Liverpool
- Liverpool
- UK
| | - R. Raval
- Surface Science Research Centre
- Department of Chemistry
- University of Liverpool
- Liverpool
- UK
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10
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Cruguel H, Méthivier C, Pradier CM, Humblot V. Surface Chirality of Gly-Pro Dipeptide Adsorbed on a Cu(110) Surface. Chirality 2015; 27:411-6. [DOI: 10.1002/chir.22445] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 03/02/2015] [Accepted: 03/02/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Hervé Cruguel
- Sorbonne Universités, UPMC Université Pierre et Marie Curie, Univ Paris 6; Paris France
- Institut des NanoScience de Paris, Université Pierre et Marie Curie, UPMC Paris 6; Paris France
| | - Christophe Méthivier
- Sorbonne Universités, UPMC Université Pierre et Marie Curie, Univ Paris 6; Paris France
- Laboratoire de Réactivité de Surface - UMR CNRS 7197; Université Pierre et Marie Curie, UPMC Paris 6; Paris France
| | - Claire-Marie Pradier
- Sorbonne Universités, UPMC Université Pierre et Marie Curie, Univ Paris 6; Paris France
- Laboratoire de Réactivité de Surface - UMR CNRS 7197; Université Pierre et Marie Curie, UPMC Paris 6; Paris France
| | - Vincent Humblot
- Sorbonne Universités, UPMC Université Pierre et Marie Curie, Univ Paris 6; Paris France
- Laboratoire de Réactivité de Surface - UMR CNRS 7197; Université Pierre et Marie Curie, UPMC Paris 6; Paris France
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11
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Mahapatra M, Tysoe WT. Chemisorptive enantioselectivity of chiral epoxides on tartaric-acid modified Pd(111): three-point bonding. Phys Chem Chem Phys 2015; 17:5450-8. [DOI: 10.1039/c4cp05611f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The chemisorption of two chiral molecules, propylene oxide and glycidol, is studied on tartaric-acid modified Pd(111) surfaces by using temperature-programmed desorption to measure adsorbate coverage.
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Affiliation(s)
- Mausumi Mahapatra
- Department of Chemistry and Laboratory for Surface Studies
- University of Wisconsin-Milwaukee
- Milwaukee
- USA
| | - Wilfred T. Tysoe
- Department of Chemistry and Laboratory for Surface Studies
- University of Wisconsin-Milwaukee
- Milwaukee
- USA
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12
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Atmane KA, Michel C, Piquemal JY, Sautet P, Beaunier P, Giraud M, Sicard M, Nowak S, Losno R, Viau G. Control of the anisotropic shape of cobalt nanorods in the liquid phase: from experiment to theory… and back. NANOSCALE 2014; 6:2682-2692. [PMID: 24448646 DOI: 10.1039/c3nr03686c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The polyol process is one of the few methods allowing the preparation of metal nanoparticles in solution. Hexagonal close packed monocrystalline Co nanorods are easily obtained in basic 1,2-butanediol at 448 K after a few minutes using a Co(II) dicarboxylate precursor. By using a combined experimental and theoretical approach, this study aims at a better understanding of the growth of anisotropic cobalt ferromagnetic nanoparticles by the polyol process. The growth of Co nanorods along the c axis of the hexagonal system was clearly evidenced by transmission electron microscopy, while the mean diameter was found to be almost constant at about 15 nm. Powder X-ray diffraction data showed that metallic cobalt was generated at the expense of a non-reduced solid lamellar intermediate phase which can be considered as a carboxylate ligand reservoir. Density functional theory calculations combined with a thermodynamic approach unambiguously showed that the main parameter governing the shape of the objects is the chemical potential of the carboxylate ligand: the crystal habit was deeply modified from rods to platelets when increasing the concentration of the ligand, i.e. its chemical potential. The approach presented in this study could be extended to a large number of particle types and growth conditions, where ligands play a key role in determining the particle shape.
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Affiliation(s)
- Kahina Aït Atmane
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, CNRS UMR 7086, 15 rue J.-A. de Baïf, 75205 Paris Cedex 13, France.
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13
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Humblot V, Tielens F, Luque NB, Hampartsoumian H, Méthivier C, Pradier CM. Characterization of two-dimensional chiral self-assemblies L- and D-methionine on Au(111). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:203-12. [PMID: 24325337 DOI: 10.1021/la404262m] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A combination of XPS, in situ RAIRS, LEED, and STM experiments together with ab initio DFT calculations were used to elucidate the self-assembly properties at the atomic level, and enabled the interpretation of the expression of surface chirality upon adsorption of both enantiomers of methionine on a clean Au(111) surface under UHV conditions. The combination of experimental results, in particular, LEED and STM data with quantum chemical calculations is shown to be a successful setup strategy for addressing this challenge. It was found that the methionine molecular self-assembly consists of the first molecule lying parallel to the gold surface and the second interacting with the first methionine through a 2D H-bond network. The interaction with the gold surface is weak. The stability of the assembly is mainly due to the presence of intermolecular H bonds, resulting in the formation of ziplike dimer rows on the Au(111) surface. The methionine molecules interact with each other via their amino acid functional groups. The assembly shows an asymmetric pattern due to a slightly different orientation of the methionine molecules with respect to the surface. Simulations of the STM image of methionine assemblies were consistent with the experimental STM image. The present study shows another example of Au(111) stabilizing a self-assembled biological layer, which is not chemically perturbed by the surface.
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Affiliation(s)
- Vincent Humblot
- Sorbonnes Universités, UPMC Univ Paris 06, UMR CNRS 7197, Laboratoire de Réactivité de Surface, 4 place jussieu, F-75005 Paris, France
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14
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Abstract
Prochiral molecules locally induce a chiral restructuring of the Cu(110) surface that persists after removal of the molecules.
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Affiliation(s)
- Chrysanthi Karageorgaki
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- CH-8600 Dübendorf, Switzerland
| | - Karl-Heinz Ernst
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- CH-8600 Dübendorf, Switzerland
- Department of Chemistry
- University of Zurich
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15
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16
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17
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18
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Mark AG, Forster M, Raval R. Recognition and Ordering at Surfaces: The Importance of Handedness and Footedness. Chemphyschem 2011; 12:1474-80. [DOI: 10.1002/cphc.201001034] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Indexed: 11/12/2022]
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19
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Smerieri M, Vattuone L, Kravchuk T, Costa D, Savio L. (S)-glutamic acid on Ag(100): self-assembly in the nonzwitterionic form. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:2393-2404. [PMID: 21338127 DOI: 10.1021/la1033993] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The fundamental understanding of adsorption and self-organization of biological molecules at surfaces is of greatest importance for a huge variety of possible applications, ranging from molecular electronics to the study of biocompatible materials, hygiene, and biofouling. In spite of that, the characterization of the interactions of organic molecules of biological interest with surfaces is far from being complete. In the present paper we report on a combined microscopic (scanning tunneling microscopy (STM)) and spectroscopic (X-ray photoemission spectroscopy and high-resolution electron energy loss spectroscopy) study of glutamic acid (Glu) adsorption and self-assembly on Ag(100) at different temperature. STM allows one to determine the structures of the Glu layers, for which empirical models are proposed, while photoemission spectra exclude adsorption in the zwitterionic form, which is the most common especially for weakly interacting substrates.
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Affiliation(s)
- M Smerieri
- IMEM-CNR , Via Dodecaneso 33, 16146 Genova, Italy
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20
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Roth C, Parschau M, Ernst KH. Chiral Reconstruction of a Metal Surface by Adsorption of Racemic Malic Acid. Chemphyschem 2011; 12:1572-7. [DOI: 10.1002/cphc.201000961] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2010] [Indexed: 11/10/2022]
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21
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Szabelski P, De Feyter S. Chiral occlusion in two-dimensional binary supramolecular networks studied by the Monte Carlo method. CrystEngComm 2011. [DOI: 10.1039/c1ce05315a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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22
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Szabelski P, De Feyter S, Drach M, Lei S. Computer simulation of chiral nanoporous networks on solid surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:9506-9515. [PMID: 20205404 DOI: 10.1021/la100043w] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A lattice Monte Carlo (MC) model was proposed with the aim of understanding the factors affecting the chiral self-assembly of tripod-shaped molecules in two dimensions. To that end a system of flat symmetric molecules adsorbed on a triangular lattice was simulated by using the canonical ensemble method. Special attention was paid to the influence of size and composition of the building block on the morphology of the adsorbed overlayer. The obtained results demonstrated a spontaneous self-assembly into extended chiral networks with hexagonal cavities, highlighting the ability of the model to reproduce basic structural features of the corresponding experimental systems. The simulated assemblies were analyzed with respect to their structural and energetic properties resulting in quantitative estimates of the unit cell parameters and mean potential energy of the adsorbed layer. The predictive potential of the model was additionally illustrated by comparison of the obtained superstructures with the recent STM images that have been recorded for different organic tripod-shaped molecules adsorbed at the liquid/pyrolytic graphite interface.
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Affiliation(s)
- Paweł Szabelski
- Department of Theoretical Chemistry, Maria-Curie Skłodowska University Pl. M. C. Skłodowskiej 3, 20-031 Lublin, Poland.
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23
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Smerieri M, Vattuone L, Costa D, Tielens F, Savio L. Self-assembly of (S)-glutamic acid on Ag(100): a combined LT-STM and ab initio investigation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:7208-7215. [PMID: 20158258 DOI: 10.1021/la904331d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Self-assembly of organic molecules at metal surfaces is of greatest importance in nanoscience; in fact, it opens new perspectives in the field of molecular electronics and in the study of biocompatible materials. Combining an experimental low-temperature scanning tunneling microscopy investigation with ab initio calculations, we succeeded to describe in detail (S)-glutamic acid adsorption on Ag(100) at T = 350 K. We find that (S)-glutamic acid organizes in a squared structure and, at variance with the majority of cases reported in literature, it adsorbs in the neutral form, 4.6 A above the surface plane. The interaction with the poorly reactive Ag substrate is only due to weak van der Waals forces, while H-bonds between carboxyl groups and the formation of a OCOH-OCOH-OCOH-OCOH cycle at the vertex of the squares are the main responsible for the self-assembly.
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Affiliation(s)
- M Smerieri
- Dipartimento di Fisica dell'Università di Genova, Italy
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25
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Forster M, Dyer M, Persson M, Raval R. 2D Random Organization of Racemic Amino Acid Monolayers Driven by Nanoscale Adsorption Footprints: Proline on Cu(110). Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200904979] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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26
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Forster M, Dyer M, Persson M, Raval R. 2D Random Organization of Racemic Amino Acid Monolayers Driven by Nanoscale Adsorption Footprints: Proline on Cu(110). Angew Chem Int Ed Engl 2010; 49:2344-8. [DOI: 10.1002/anie.200904979] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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27
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Roth C, Passerone D, Ernst KH. Pasteur's quasiracemates in 2D: chiral conflict between structurally different enantiomers induces single-handed enantiomorphism. Chem Commun (Camb) 2010; 46:8645-7. [DOI: 10.1039/c0cc03060k] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Cramer CJ, Truhlar DG. Density functional theory for transition metals and transition metal chemistry. Phys Chem Chem Phys 2009; 11:10757-816. [PMID: 19924312 DOI: 10.1039/b907148b] [Citation(s) in RCA: 1079] [Impact Index Per Article: 71.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We introduce density functional theory and review recent progress in its application to transition metal chemistry. Topics covered include local, meta, hybrid, hybrid meta, and range-separated functionals, band theory, software, validation tests, and applications to spin states, magnetic exchange coupling, spectra, structure, reactivity, and catalysis, including molecules, clusters, nanoparticles, surfaces, and solids.
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Affiliation(s)
- Christopher J Cramer
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455-0431, USA.
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29
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Zhang J, Lu T, Jiang C, Zou J, Cao F, Chen Y. Mechanisms for chemical transformations of (R,R)-tartaric acid on Cu(110): A first principles study. J Chem Phys 2009; 131:144703. [DOI: 10.1063/1.3247188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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Drastic symmetry breaking in supramolecular organization of enantiomerically unbalanced monolayers at surfaces. Nat Chem 2009; 1:409-14. [DOI: 10.1038/nchem.295] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2009] [Accepted: 06/16/2009] [Indexed: 11/08/2022]
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Linares M, Minoia A, Brocorens P, Beljonne D, Lazzaroni R. Expression of chirality in molecular layers at surfaces: insights from modelling. Chem Soc Rev 2009; 38:806-16. [DOI: 10.1039/b801638k] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Raval R. Chiral expression from molecular assemblies at metal surfaces: insights from surface science techniques. Chem Soc Rev 2009; 38:707-21. [DOI: 10.1039/b800411k] [Citation(s) in RCA: 250] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bhatia B, Sholl DS. Characterization of enantiospecific chemisorption on chiral Cu surfaces vicinal to Cu(111) and Cu(100) using density functional theory. J Chem Phys 2008; 128:144709. [DOI: 10.1063/1.2894841] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Ghiringhelli LM, Delle Site L. Phenylalanine near Inorganic Surfaces: Conformational Statistics vs Specific Chemistry. J Am Chem Soc 2008; 130:2634-8. [DOI: 10.1021/ja077817d] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Luca M. Ghiringhelli
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Luigi Delle Site
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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Liu N, Haq S, Darling GR, Raval R. Direct Visualization of Enantiospecific Substitution of Chiral Guest Molecules into Heterochiral Molecular Assemblies at Surfaces. Angew Chem Int Ed Engl 2007; 46:7613-6. [PMID: 17712805 DOI: 10.1002/anie.200701675] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ning Liu
- Surface Science Research Centre, Department of Chemistry, The University of Liverpool, Liverpool, UK
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38
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Liu N, Haq S, Darling G, Raval R. Direct Visualization of Enantiospecific Substitution of Chiral Guest Molecules into Heterochiral Molecular Assemblies at Surfaces. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200701675] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Sellers H. Modeling the kinetics of large sets of reactions on metal surfaces. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2007. [DOI: 10.1134/s1990793107040070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Paci I, Szleifer I, Ratner MA. Chiral Separation: Mechanism Modeling in Two-Dimensional Systems. J Am Chem Soc 2007; 129:3545-55. [PMID: 17338520 DOI: 10.1021/ja066422b] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Fluid phase separations of racemates are difficult because the subtle, short-ranged differences in intermolecular interactions of like and unlike pairs of chiral molecules are typically smaller than the thermal energy. A surface restricts the configurational space available to the pair of interacting molecules, thus changing the effective interactions between them. Because of this restriction, a surface can promote chiral separation of mixtures that are racemic in bulk. In this paper, we investigate chiral symmetry breaking induced by an achiral surface in a racemate. A parallel tempering Monte Carlo algorithm with tempering over the temperature domain is used to examine the interplay between molecular geometry and energetics in promoting chiral separations. The system is restricted to evolve in two dimensions. By controlling the balance between electrostatic and steric interactions, one can direct the surface assembly of the chiral molecules toward formation of small clusters of identical molecules. When molecular shape asymmetry is complemented by dipolar alignment, chiral micellar clusters of like molecules are assembled on the surface. We examine the case of small model molecules for which the two-dimensional restriction of the pair potential is sufficient to induce chiral segregation. An increase in molecular complexity can change the balance of intermolecular interactions to the point that heterochiral pairs are energetically more favored. In this case, we find conditions in which formation of homochiral micelles is still achieved, due to a combination of multibody and entropic effects. In such systems, an examination of the pair potential alone is insufficient to predict whether the multimolecular racemate will or will not segregate.
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Affiliation(s)
- Irina Paci
- Department of Chemistry and Materials Research Center, Northwestern University, Evanston, Illinois 60208, USA.
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Parschau M, Behzadi B, Romer S, Ernst KH. Stereoisomeric influence on 2D lattice structure: achiralmeso-tartaric acidversus chiral tartaric acid. SURF INTERFACE ANAL 2006. [DOI: 10.1002/sia.2426] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Parschau M, Romer S, Ernst KH. Induction of Homochirality in Achiral Enantiomorphous Monolayers. J Am Chem Soc 2004; 126:15398-9. [PMID: 15563164 DOI: 10.1021/ja044136z] [Citation(s) in RCA: 117] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the induction of homochirality in enantiomorphous layers of achiral succinic acid on a Cu(110) surface after doping with tartaric acid (TA) enantiomers. Succinic acid becomes chiral upon adsorption due to symmetry-breaking interactions with the Cu(110) surface. The doubly deprotonated bisuccinate forms mirror domains on the surface, which leads to a superposition of (11,-90) and (90,-11) patterns observed by low-energy electron diffraction (LEED). On average, however, the surface layer is racemic. An amount of 2 mol % of (R,R)- or (S,S)-tartaric acid in the monolayer, corresponding to an absolute coverage of 0.001 tartaric acid molecule per surface copper atom, is sufficient to make the LEED spots of one enantiomorphous lattice disappear. After thermally induced desorption of TA, the succinic acid lattice turns racemic again. In analogy to the "sergeants-and-soldiers" principle described for helical polymers, this effect is explained by a lateral cooperative interaction within the two-dimensional lattice.
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Affiliation(s)
- Manfred Parschau
- Swiss Federal Laboratories for Materials Research (EMPA), Molecular Surface Technologies-125, Uberlandstrasse 129, CH 8600 Dübendorf, Switzerland
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