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Gualtieri AF, Cocchi M, Muniz-Miranda F, Pedone A, Castellini E, Strani L. Iron nuclearity in mineral fibres: Unravelling the catalytic activity for predictive modelling of toxicity. J Hazard Mater 2024; 469:134004. [PMID: 38521041 DOI: 10.1016/j.jhazmat.2024.134004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/08/2024] [Accepted: 03/09/2024] [Indexed: 03/25/2024]
Abstract
Chronic inflammation induced in vivo by mineral fibres, such as asbestos, is sustained by the cyclic formation of cytotoxic/genotoxic oxidant species that are catalysed by iron. High catalytic activity is observed when iron atoms are isolated in the crystal lattice (nuclearity=1), whereas the catalytic activity is expected to be reduced or null when iron forms clusters of higher nuclearity. This study presents a novel approach for systematically measuring iron nuclearity across a large range of iron-containing standards and mineral fibres of social and economic importance, and for quantitatively assessing the relation between nuclearity and toxicity. The multivariate curve resolution (MCR) empirical approach and density functional theory (DFT) calculations were applied to the analysis of UV-Vis spectra to obtain information on the nature of iron and nuclearity. This approach led to the determination of the nuclearity of selected mineral fibres which was subsequently used to calculate a toxicity-related index. High nuclearity-related toxicity was estimated for chrysotile samples, fibrous glaucophane, asbestos tremolite, and fibrous wollastonite. Intermediate values of toxicity, corresponding to a mean nuclearity of 2, were assigned to actinolite asbestos, amosite, and crocidolite. Finally, a low nuclearity-related toxicity parameter, corresponding to an iron-cluster with a lower catalytic power to produce oxidants, was assigned to asbestos anthophyllite.
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Affiliation(s)
- Alessandro F Gualtieri
- Chemical and Geological Sciences Department, 41125, University of Modena and Reggio Emilia, Modena, Italy.
| | - Marina Cocchi
- Chemical and Geological Sciences Department, 41125, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesco Muniz-Miranda
- Chemical and Geological Sciences Department, 41125, University of Modena and Reggio Emilia, Modena, Italy
| | - Alfonso Pedone
- Chemical and Geological Sciences Department, 41125, University of Modena and Reggio Emilia, Modena, Italy
| | - Elena Castellini
- Chemical and Geological Sciences Department, 41125, University of Modena and Reggio Emilia, Modena, Italy
| | - Lorenzo Strani
- Chemical and Geological Sciences Department, 41125, University of Modena and Reggio Emilia, Modena, Italy
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2
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Muniz-Miranda F, Pedone A, Menziani MC, Muniz-Miranda M. DFT and TD-DFT Study of the Chemical Effect in the SERS Spectra of Piperidine Adsorbed on Silver Colloidal Nanoparticles. Nanomaterials (Basel) 2022; 12:2907. [PMID: 36079945 PMCID: PMC9458020 DOI: 10.3390/nano12172907] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/17/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
The surface-enhanced Raman scattering (SERS) spectra of piperidine adsorbed on silver/chloride colloids were studied by a combined density functional theory (DFT)/time dependent DFT (TD-DFT) approach. The mechanism of chemical enhancement on the Raman signals is due to at least two contributions: the first comes from the changes in the molecular force constants and the dynamic polarizabilities of the normal modes, when the molecule is chemisorbed. DFT calculations satisfactorily reproduce the SERS spectra of piperidine adsorbed on silver, showing that the species formed on the silver particle is a complex formed by a deprotonated piperidine linked to a silver cation. A second contribution to the SERS chemical enhancement is due to a resonance Raman effect occurring when the wavelength of the Raman excitation falls within the electronic excitation band of the molecule/metal complex. Actually, the SERS spectra of piperidine show a significant dependence on the wavelength of the laser excitation, with a marked enhancement in the green-light region. TD-DFT calculations on the most-probable complex explain this behavior, because a strong excitation band of the complex is calculated in the green spectral region. This pinpoints that a resonance between the exciting radiation and the absorption band of this complex is responsible for this enhancement effect.
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Affiliation(s)
- Francesco Muniz-Miranda
- Department and Geological Sciences (DSCG), University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Alfonso Pedone
- Department and Geological Sciences (DSCG), University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Maria Cristina Menziani
- Department and Geological Sciences (DSCG), University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Maurizio Muniz-Miranda
- Department of Chemistry “Ugo Schiff” (DiCUS), University of Florence, Via Lastruccia 3, 50019 Sesto Fiorentino, Italy
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3
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Abstract
Despite great efforts over the past 50 years, the simulation of water still presents significant challenges and open questions. At room temperature and pressure, the collective molecular interactions and dynamics of water molecules may form local structural arrangements that are non-trivial to classify. Here, we employ a data-driven approach built on Smooth Overlap of Atomic Position (SOAP) that allows us to compare and classify how widely used classical models represent liquid water. Macroscopically, the obtained results are rationalized based on water thermodynamic observables. Microscopically, we directly observe how transient ice-like ordered environments may dynamically/statistically form in liquid water, even above freezing temperature, by comparing the SOAP spectra for different ice structures with those of the simulated liquid systems. This confirms recent ab initio-based calculations but also reveals how the emergence of ephemeral local ice-like environments in liquid water at room conditions can be captured by classical water models.
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Affiliation(s)
- Riccardo Capelli
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, I-10129 Torino, Italy
| | - Francesco Muniz-Miranda
- Department of Chemical and Geological Sciences, University of Modena and Reggio-Emilia, Via Campi 103, I-41125 Modena, Italy
| | - Giovanni M. Pavan
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, I-10129 Torino, Italy
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Polo Universitario Lugano, Campus Est, Via la Santa 1, CH-6962 Lugano-Viganello, Switzerland
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Micheletti C, Minei P, Carlotti M, Mattoli V, Muniz-Miranda F, Perfetto A, Ciofini I, Adamo C, Ruggeri G, Pucci A. Mechanochromic LLDPE Films Doped with NIR Reflective Paliogen Black. Macromol Rapid Commun 2020; 42:e2000426. [PMID: 33089579 DOI: 10.1002/marc.202000426] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/11/2020] [Indexed: 11/10/2022]
Abstract
The perylene bisimide derivative Paliogen Black (P-black) is proposed as a new chromogenic probe that shows visible (vis) and near-infrared (NIR) responses after mechanical solicitations of host linear low-density polyethylene (LLDPE) films. P-black is reported to display strong absorption in the vis spectrum and unusual reflective and cooling features in the NIR region. Uniaxial deformation of the 2.5, 5, and 10 wt% P-black/LLDPE films yields a dichroic absorption under polarized light with color variations attributed by the computational analysis to the distinct anisotropic behavior of the transition dipole moments of P-black chromophores. When LLDPE films are deformed, P-black aggregates reduce their size from ≈30-40 µm to ≈5-10 µm that, in turn, causes reflectivity losses of about 30-40% at the maximum elongation. This gives rise to warming of 5-6 °C of the locally oriented film placed in contact with a black substrate under the illumination with an IR lamp for 5 s. These features combined with the high sensitivity of the vis-NIR response toward mechanical solicitations render P-black as a new solution to detect uniaxial deformations of plastic films through both optical and thermal outputs.
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Affiliation(s)
- Cosimo Micheletti
- Department of Chemistry and Industrial Chemistry, Università di Pisa, Via Giuseppe Moruzzi 13, Pisa, 56124, Italy
| | - Pierpaolo Minei
- Department of Chemistry and Industrial Chemistry, Università di Pisa, Via Giuseppe Moruzzi 13, Pisa, 56124, Italy
| | - Marco Carlotti
- Center for Micro-BioRobotics @SSSA, Italian Institute of Technology, Viale Rinaldo Piaggio 34, Pontedera, 56025, Italy
| | - Virgilio Mattoli
- Center for Micro-BioRobotics @SSSA, Italian Institute of Technology, Viale Rinaldo Piaggio 34, Pontedera, 56025, Italy
| | - Francesco Muniz-Miranda
- PSL University, École Nationale Supérieure de Chimie de Paris, CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS), FRE2027, 11, Rue Pierre et Marie Curie, Paris, F-75005, France
| | - Anna Perfetto
- PSL University, École Nationale Supérieure de Chimie de Paris, CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS), FRE2027, 11, Rue Pierre et Marie Curie, Paris, F-75005, France
| | - Ilaria Ciofini
- PSL University, École Nationale Supérieure de Chimie de Paris, CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS), FRE2027, 11, Rue Pierre et Marie Curie, Paris, F-75005, France
| | - Carlo Adamo
- PSL University, École Nationale Supérieure de Chimie de Paris, CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS), FRE2027, 11, Rue Pierre et Marie Curie, Paris, F-75005, France
| | - Giacomo Ruggeri
- Department of Chemistry and Industrial Chemistry, Università di Pisa, Via Giuseppe Moruzzi 13, Pisa, 56124, Italy
| | - Andrea Pucci
- Department of Chemistry and Industrial Chemistry, Università di Pisa, Via Giuseppe Moruzzi 13, Pisa, 56124, Italy
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Huet L, Perfetto A, Muniz-Miranda F, Campetella M, Adamo C, Ciofini I. General Density-Based Index to Analyze Charge Transfer Phenomena: From Models to Butterfly Molecules. J Chem Theory Comput 2020; 16:4543-4553. [DOI: 10.1021/acs.jctc.0c00296] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Léon Huet
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS), Theoretical Chemistry and Modelling Group (CTM), 75005 Paris, France
| | - Anna Perfetto
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS), Theoretical Chemistry and Modelling Group (CTM), 75005 Paris, France
| | - Francesco Muniz-Miranda
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS), Theoretical Chemistry and Modelling Group (CTM), 75005 Paris, France
| | - Marco Campetella
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS), Theoretical Chemistry and Modelling Group (CTM), 75005 Paris, France
| | - Carlo Adamo
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS), Theoretical Chemistry and Modelling Group (CTM), 75005 Paris, France
- France and Institut Universitaire de France, 103 Boulevard Saint Michel, F-75005 Paris, France
| | - Ilaria Ciofini
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS), Theoretical Chemistry and Modelling Group (CTM), 75005 Paris, France
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6
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Rogge SMJ, Yot PG, Jacobsen J, Muniz-Miranda F, Vandenbrande S, Gosch J, Ortiz V, Collings IE, Devautour-Vinot S, Maurin G, Stock N, Van Speybroeck V. Charting the Metal-Dependent High-Pressure Stability of Bimetallic UiO-66 Materials. ACS Mater Lett 2020; 2:438-445. [PMID: 32296781 PMCID: PMC7147928 DOI: 10.1021/acsmaterialslett.0c00042] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
In theory, bimetallic UiO-66(Zr:Ce) and UiO-66(Zr:Hf) metal-organic frameworks (MOFs) are extremely versatile and attractive nanoporous materials as they combine the high catalytic activity of UiO-66(Ce) or UiO-66(Hf) with the outstanding stability of UiO-66(Zr). Using in situ high-pressure powder X-ray diffraction, however, we observe that this expected mechanical stability is not achieved when incorporating cerium or hafnium in UiO-66(Zr). This observation is akin to the earlier observed reduced thermal stability of UiO-66(Zr:Ce) compounds. To elucidate the atomic origin of this phenomenon, we chart the loss-of-crystallinity pressures of 22 monometallic and bimetallic UiO-66 materials and systematically isolate their intrinsic mechanical stability from their defect-induced weakening. This complementary experimental/computational approach reveals that the intrinsic mechanical stability of these bimetallic MOFs decreases nonlinearly upon cerium incorporation but remains unaffected by the zirconium: hafnium ratio. Additionally, all experimental samples suffer from defect-induced weakening, a synthesis-controlled effect that is observed to be independent of their intrinsic stability.
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Affiliation(s)
- Sven M. J. Rogge
- Center
for Molecular Modeling (CMM), Ghent University, Technologiepark 46, B-9052 Zwijnaarde, Belgium
| | - Pascal G. Yot
- Institut
Charles Gerhardt Montpellier (ICGM), Université
de Montpellier, CNRS, ENSCM, Place Eugène Bataillon, F-34095 Montpellier cedex 05, France
| | - Jannick Jacobsen
- Institut
für Anorganische Chemie, Christian-Albrechts-Universität
zu Kiel, Max-Eyth-Straβe 2, D-24118 Kiel, Germany
| | - Francesco Muniz-Miranda
- Center
for Molecular Modeling (CMM), Ghent University, Technologiepark 46, B-9052 Zwijnaarde, Belgium
| | - Steven Vandenbrande
- Center
for Molecular Modeling (CMM), Ghent University, Technologiepark 46, B-9052 Zwijnaarde, Belgium
| | - Jonas Gosch
- Institut
für Anorganische Chemie, Christian-Albrechts-Universität
zu Kiel, Max-Eyth-Straβe 2, D-24118 Kiel, Germany
| | - Vanessa Ortiz
- Institut
Charles Gerhardt Montpellier (ICGM), Université
de Montpellier, CNRS, ENSCM, Place Eugène Bataillon, F-34095 Montpellier cedex 05, France
| | - Ines E. Collings
- European
Synchrotron Radiation Facility, 71 Avenue des Martys, F-38000 Grenoble, France
| | - Sabine Devautour-Vinot
- Institut
Charles Gerhardt Montpellier (ICGM), Université
de Montpellier, CNRS, ENSCM, Place Eugène Bataillon, F-34095 Montpellier cedex 05, France
| | - Guillaume Maurin
- Institut
Charles Gerhardt Montpellier (ICGM), Université
de Montpellier, CNRS, ENSCM, Place Eugène Bataillon, F-34095 Montpellier cedex 05, France
| | - Norbert Stock
- Institut
für Anorganische Chemie, Christian-Albrechts-Universität
zu Kiel, Max-Eyth-Straβe 2, D-24118 Kiel, Germany
| | - Veronique Van Speybroeck
- Center
for Molecular Modeling (CMM), Ghent University, Technologiepark 46, B-9052 Zwijnaarde, Belgium
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7
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Muniz-Miranda M, Muniz-Miranda F, Giorgetti E. Spectroscopic and Microscopic Analyses of Fe 3O 4/Au Nanoparticles Obtained by Laser Ablation in Water. Nanomaterials (Basel) 2020; 10:nano10010132. [PMID: 31936852 PMCID: PMC7023500 DOI: 10.3390/nano10010132] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 12/20/2022]
Abstract
Magneto-plasmonic nanoparticles constituted of gold and iron oxide were obtained in an aqueous environment by laser ablation of iron and gold targets in two successive steps. Gold nanoparticles are embedded in a mucilaginous matrix of iron oxide, which was identified as magnetite by both microscopic and spectroscopic analyses. The plasmonic properties of the obtained colloids, as well as their adsorption capability, were tested by surface-enhanced Raman scattering (SERS) spectroscopy using 2,2′-bipyridine as a probe molecule. DFT calculations allowed for obtaining information on the adsorption of the ligand molecules that strongly interact with positively charged surface active sites of the gold nanoparticles, thus providing efficient SERS enhancement. The presence of iron oxide gives the bimetallic colloid new possibilities of adsorption in addition to those inherent to gold nanoparticles, especially regarding organic pollutants and heavy metals, allowing to remove them from the aqueous environment by applying a magnetic field. Moreover, these nanoparticles, thanks to their low toxicity, are potentially useful not only in the field of sensors, but also for biomedical applications.
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Affiliation(s)
- Maurizio Muniz-Miranda
- Department of Chemistry “Ugo Schiff”, University of Florence, Via Lastruccia 3, 50019 Sesto Fiorentino, Italy
- Institute of Complex Systems (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy;
- Correspondence:
| | - Francesco Muniz-Miranda
- École Nationale Supérieure de Chimie de Paris and PSL Research University, CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS), FRE 2027, 11, rue Pierre et Marie Curie, F-75005 Paris, France;
| | - Emilia Giorgetti
- Institute of Complex Systems (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy;
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Muniz-Miranda F, Minei P, Contiero L, Labat F, Ciofini I, Adamo C, Bellina F, Pucci A. Aggregation Effects on Pigment Coatings: Pigment Red 179 as a Case Study. ACS Omega 2019; 4:20315-20323. [PMID: 31815234 PMCID: PMC6893955 DOI: 10.1021/acsomega.9b02819] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 11/04/2019] [Indexed: 06/06/2023]
Abstract
Here, we have studied, with a combined experimental and computational approach, the effect of the crystal environment and aggregation on the electronic properties of Pigment Red 179, which affect both its color and optical energy gap. Spectra acquired in the near-infrared and visible range of energies suggest that this molecule is indeed a "cool" dye, which can be employed as a red pigment that provides effective color coverage to different substrates without contributing to their heating during light irradiation. Spectra acquired on different polymer mixtures at different pigment concentrations (i.e., 2.5-10 wt %) suggest that absorption features depend on chromophoric arrangements promoted by the strong intermolecular π-π interactions. Calculations, performed at the time-dependent density functional theory level, allowed to both attribute the nature of the electronic transitions causing the observed spectra involved and understand the effect of the environment. Indeed, the visible spectra of the pigment is dominated by two localized transitions, with negligible charge transfer for both a dye monomer and dimer either in vacuum or acetonitrile solution. Instead, models including the crystal environment of the pigment show the presence of a high-wavelength S1 ← S0 charge transfer transition between two adjacent molecules, in quantitative agreement with the experimental absorption energy of the crystal pigment.
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Affiliation(s)
- Francesco Muniz-Miranda
- École
Nationale Supérieure de Chimie de Paris and PSL Research University,
CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS),
FRE 2027, 11, rue Pierre et Marie Curie, F-75005 Paris, France
| | - Pierpaolo Minei
- Deparment
of Chemistry and Industrial Chemistry, University
of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Luca Contiero
- Cromology
Italia S.P.A., Via 4
Novembre 4, 55016 Porcari, Lucca, Italy
| | - Frédéric Labat
- École
Nationale Supérieure de Chimie de Paris and PSL Research University,
CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS),
FRE 2027, 11, rue Pierre et Marie Curie, F-75005 Paris, France
| | - Ilaria Ciofini
- École
Nationale Supérieure de Chimie de Paris and PSL Research University,
CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS),
FRE 2027, 11, rue Pierre et Marie Curie, F-75005 Paris, France
| | - Carlo Adamo
- École
Nationale Supérieure de Chimie de Paris and PSL Research University,
CNRS, Institute of Chemistry for Life and Health Sciences (i-CLeHS),
FRE 2027, 11, rue Pierre et Marie Curie, F-75005 Paris, France
| | - Fabio Bellina
- Deparment
of Chemistry and Industrial Chemistry, University
of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Andrea Pucci
- Deparment
of Chemistry and Industrial Chemistry, University
of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
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Muniz-Miranda F, De Bruecker L, De Vos A, Vanden Bussche F, Stevens CV, Van Der Voort P, Lejaeghere K, Van Speybroeck V. Optical Properties of Isolated and Covalent Organic Framework-Embedded Ruthenium Complexes. J Phys Chem A 2019; 123:6854-6867. [PMID: 31322892 PMCID: PMC6698874 DOI: 10.1021/acs.jpca.9b05216] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Heterogenization
of RuL3 complexes on a support with
proper anchor points provides a route toward design of green catalysts.
In this paper, Ru(II) polypyridyl complexes are investigated with
the aim to unravel the influence on the photocatalytic properties
of varying nitrogen content in the ligands and of embedding the complex
in a triazine-based covalent organic framework. To provide fundamental
insight into the electronic mechanisms underlying this behavior, a
computational study is performed. Both the ground and excited state
properties of isolated and anchored ruthenium complexes are theoretically
investigated by means of density functional theory and time-dependent
density functional theory. Varying the ligands among 2,2′-bipyridine,
2,2′-bipyrimidine, and 2,2′-bipyrazine allows us to
tune to a certain extent the optical gaps and the metal to ligand
charge transfer excitations. Heterogenization of the complex within
a CTF support has a significant effect on the nature and energy of
the electronic transitions. The allowed transitions are significantly
red-shifted toward the near IR region and involve transitions from
states localized on the CTF toward ligands attached to the ruthenium.
The study shows how variations in ligands and anchoring on proper
supports allows us to increase the range of wavelengths that may be
exploited for photocatalysis.
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Affiliation(s)
- Francesco Muniz-Miranda
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , 9052 Zwijnaarde , Belgium
| | - Liesbeth De Bruecker
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , 9052 Zwijnaarde , Belgium
| | - Arthur De Vos
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , 9052 Zwijnaarde , Belgium
| | - Flore Vanden Bussche
- Research Group SynBioC, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering , Ghent University , Campus Coupure, Coupure Links 653 bl. B , 9000 Gent , Belgium.,Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Inorganic and Physical Chemistry , Ghent University , Krijgslaan 281 (S3) , 9000 Gent , Belgium
| | - Christian V Stevens
- Research Group SynBioC, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering , Ghent University , Campus Coupure, Coupure Links 653 bl. B , 9000 Gent , Belgium
| | - Pascal Van Der Voort
- Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Inorganic and Physical Chemistry , Ghent University , Krijgslaan 281 (S3) , 9000 Gent , Belgium
| | - Kurt Lejaeghere
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , 9052 Zwijnaarde , Belgium
| | - Veronique Van Speybroeck
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , 9052 Zwijnaarde , Belgium
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Caporali S, Muniz-Miranda F, Pedone A, Muniz-Miranda M. SERS, XPS and DFT Study of Xanthine Adsorbed on Citrate-Stabilized Gold Nanoparticles. Sensors (Basel) 2019; 19:E2700. [PMID: 31208081 PMCID: PMC6631783 DOI: 10.3390/s19122700] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/11/2019] [Accepted: 06/13/2019] [Indexed: 02/05/2023]
Abstract
We have studied the adsorption of xanthine, a nucleobase present in human tissue and fluids that is involved in important metabolic processes, on citrate-reduced gold colloidal nanoparticles by means of surface-enhanced Raman scattering (SERS), absorption, and X-ray photoelectron spectroscopy (XPS) measurements, along with density functional theory (DFT) calculations. The citrate anions stabilize the colloidal suspensions by strongly binding the gold nanoparticles. However, these anions do not impair the adsorption of xanthine on positively-charged active sites present on the metal surface. We have obtained the Fourier transform (FT)-SERS spectra of adsorbed xanthine by laser excitation in the near infrared spectral region, where interference due to fluorescence emission does not usually occur. In fact, the addition of chloride ions to the Au/xanthine colloid induces the aggregation of the gold nanoparticles, whose plasmonic band is shifted to the near infrared region where there is the exciting laser line of the FT-Raman instrument. Hence, this analytical approach is potentially suitable for spectroscopic determination of xanthine directly in body fluids, avoiding fluorescence phenomena induced by visible laser irradiation.
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Affiliation(s)
- Stefano Caporali
- Department of Industrial Engineering, University of Florence, Via S. Marta 3, 50139 Firenze, Italy.
| | - Francesco Muniz-Miranda
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy.
| | - Alfonso Pedone
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy.
| | - Maurizio Muniz-Miranda
- Department of Chemistry "Ugo Schiff", University of Florence, Via Lastruccia 3, 50019 Sesto Fiorentino, Italy.
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11
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Tahir N, Muniz-Miranda F, Everaert J, Tack P, Heugebaert T, Leus K, Vincze L, Stevens CV, Van Speybroeck V, Van Der Voort P. Immobilization of Ir(I) complex on covalent triazine frameworks for C H borylation reactions: A combined experimental and computational study. J Catal 2019. [DOI: 10.1016/j.jcat.2019.01.030] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Muniz-Miranda F, Pedone A, Muniz-Miranda M. Raman and Computational Study on the Adsorption of Xanthine on Silver Nanocolloids. ACS Omega 2018; 3:13530-13537. [PMID: 31458060 PMCID: PMC6644810 DOI: 10.1021/acsomega.8b02174] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 10/08/2018] [Indexed: 06/09/2023]
Abstract
Xanthine is a nucleobase, deriving from adenine and guanine by deamination and oxidation processes, which may deposit in the human body causing diseases, similar to uric acid. Here, we have investigated the adsorption of xanthine on silver colloidal nanoparticles by means of surface-enhanced Raman scattering (SERS) with an exciting radiation in the near-infrared spectral region, where interference due to fluorescence does not occur, along with density functional theory calculations of molecule/metal model systems. By adopting a combined experimental and computational approach, we have identified the "marker" SERS bands of xanthine and the tautomer that preferentially binds the silver particles, as well as the molecular group involved in the interaction with metal. This investigation allows using the FT-SERS spectroscopy for biosensory and diagnostic purposes in body fluids, detecting abnormal levels of xanthine, and preventing metabolic diseases.
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Affiliation(s)
- Francesco Muniz-Miranda
- Department
of Chemical and Geological Sciences (DSCG), University of Modena and Reggio Emilia (UniMORE), Via Campi 103, 41125 Modena, Italy
| | - Alfonso Pedone
- Department
of Chemical and Geological Sciences (DSCG), University of Modena and Reggio Emilia (UniMORE), Via Campi 103, 41125 Modena, Italy
| | - Maurizio Muniz-Miranda
- Department
of Chemistry “Ugo Schiff”, University of Florence (UniFI), Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
- Institute
of Complex Systems (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
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13
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Gellini C, Muniz-Miranda F, Pedone A, Muniz-Miranda M. SERS active Ag-SiO 2 nanoparticles obtained by laser ablation of silver in colloidal silica. Beilstein J Nanotechnol 2018; 9:2396-2404. [PMID: 30254834 PMCID: PMC6142779 DOI: 10.3762/bjnano.9.224] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 08/21/2018] [Indexed: 06/08/2023]
Abstract
Highly stable Ag-SiO2 nanoparticle composites were first obtained by laser ablation of a silver target in an aqueous colloidal dispersion of silica and examined by UV-vis absorption spectroscopy, transmission electron microscopy and Raman spectroscopy. The surface enhanced Raman scattering (SERS) activity of these nanocomposites was tested using 2,2'-bipyridine as a molecular reporter and excitation in the visible and near-IR spectral regions. The computational DFT approach provided evidence of ligand adsorption on positively charged adatoms of the silver nanostructured surface, in a very similar way to the metal/molecule interaction occurring in the corresponding Ag(I) coordination compound.
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Affiliation(s)
- Cristina Gellini
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Francesco Muniz-Miranda
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
- Center for Molecular Modeling, Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium
| | - Alfonso Pedone
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Maurizio Muniz-Miranda
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
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Muniz-Miranda F, Pedone A, Muniz-Miranda M. Spectroscopic and DFT investigation on the photo-chemical properties of a push-pull chromophore: 4-Dimethylamino-4'-nitrostilbene. Spectrochim Acta A Mol Biomol Spectrosc 2018; 190:33-39. [PMID: 28892719 DOI: 10.1016/j.saa.2017.08.072] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 08/15/2017] [Accepted: 08/31/2017] [Indexed: 06/07/2023]
Abstract
4-Dimethylamino-4'-nitrostilbene (DANS), a π-conjugated push-pull molecule, has been investigated by means of a combined spectroscopic and computational approach. When the Raman excitation is close to the visible electronic transition of DANS, vibrational bands not belonging to DANS appear in the spectra, increasing with the laser power. These bands are observed at room temperature in the solid phase, but not at low temperature or in solution, and we interpret them as due to a thermally-activated photoreaction occurring under laser irradiation in the visible spectral region. Density-functional calculations correctly reproducing the electronic and vibrational spectra of DANS, describe the charge-transfer process, indicate that an azo-derivative is the product of the photoreaction of DANS and provide a reasonable interpretation of this process.
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Affiliation(s)
- Francesco Muniz-Miranda
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia (UniMORE), Via Campi 103, 41125 Modena, Italy.
| | - Alfonso Pedone
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia (UniMORE), Via Campi 103, 41125 Modena, Italy
| | - Maurizio Muniz-Miranda
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze (UniFI), Via Lastruccia 3, 50019 Sesto Fiorentino, Italy
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15
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Muniz-Miranda F, Menziani MC, Pedone A. Assessment of the basis set effect on the structural and electronic properties of organic-protected gold nanoclusters. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1856-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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16
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Pedone A, Muniz-Miranda F, Tilocca A, Menziani MC. The antioxidant properties of Ce-containing bioactive glass nanoparticles explained by Molecular Dynamics simulations. Biomedical glasses 2016. [DOI: 10.1515/bglass-2016-0003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractMolecular dynamics simulations of two glass nanoparticles with composition 25Na2O·25CaO 50SiO2 mol% (Ce-K NP) and 46.1SiO2·24.4Na2O·26.9CaO· 2.6P2O5 mol.% (Ce-BG NP) doped with 3.6 mol% of CeO2 have been carried out in order to explain the enhanced antioxidant properties of the former glass with respect to the latter.The present models show that the different catalase mimetic activity of the two NPs is related to the Ce3+/Ce4+ ratio exposed at their surface. In fact, this ratio is about 3.5 and 13 in the bulk and at the surface of the Ce-BG NP, and 1.0 and 2.1 in the bulk and at the surface of the Ce-K NPs, respectively. Since both oxidation states are necessary for the catalysis of the dismutation reaction of hydrogen peroxides, NPs with a very high Ce3+/Ce4+ ratio possess poorer antioxidant properties.Moreover, our simulations reveal that the already low silicate connectivity found in the bulk glasses examined here is further reduced on the nanoparticle surface, whereas the Na+/Ca2+ ratio rapidly increases. Sodium, calcium and cerium sites in proximity of the surface are found to be under-coordinated, prone to quickly react with water present in physiological environments, thus accelerating the glass biodegradation
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Muniz-Miranda M, Muniz-Miranda F, Pedone A. Raman and DFT study of methimazole chemisorbed on gold colloidal nanoparticles. Phys Chem Chem Phys 2016; 18:5974-80. [DOI: 10.1039/c5cp07597a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The SERS/DFT study of methimazole chemisorbed on Au nanoparticles paves the way for the use of these nanohybrids in biomedicine.
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Affiliation(s)
| | - Francesco Muniz-Miranda
- Department of Chemical and Geological Sciences (DSCG)
- University of Modena and Reggio Emilia (UniMORE)
- 41125 Modena
- Italy
| | - Alfonso Pedone
- Department of Chemical and Geological Sciences (DSCG)
- University of Modena and Reggio Emilia (UniMORE)
- 41125 Modena
- Italy
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18
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Muniz-Miranda F, Presti D, Menziani MC, Pedone A. Electronic and optical properties of the Au22[1,8-bis(diphenylphosphino) octane]6 nanoclusters disclosed by DFT and TD-DFT calculations. Theor Chem Acc 2015. [DOI: 10.1007/s00214-015-1764-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Muniz-Miranda F, Pedone A, Battistelli G, Montalti M, Bloino J, Barone V. Benchmarking TD-DFT against Vibrationally Resolved Absorption Spectra at Room Temperature: 7-Aminocoumarins as Test Cases. J Chem Theory Comput 2015; 11:5371-84. [DOI: 10.1021/acs.jctc.5b00750] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Francesco Muniz-Miranda
- Dipartimento
di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, via G. Campi 183, Modena, 41125, Italy
| | - Alfonso Pedone
- Dipartimento
di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, via G. Campi 183, Modena, 41125, Italy
| | - Giulia Battistelli
- Dipartimento
“G. Ciamician”, Università di Bologna, Bologna, 40126, Italy
| | - Marco Montalti
- Dipartimento
“G. Ciamician”, Università di Bologna, Bologna, 40126, Italy
| | - Julien Bloino
- Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti OrganoMetallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, via G. Moruzzi 1, Pisa, 56124, Italy
- Scuola Normale Superiore di Pisa, Piazza dei Cavalieri 7, Pisa, 56126, Italy
| | - Vincenzo Barone
- Scuola Normale Superiore di Pisa, Piazza dei Cavalieri 7, Pisa, 56126, Italy
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20
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Muniz-Miranda M, Muniz-Miranda F, Caporali S. SERS and DFT study of copper surfaces coated with corrosion inhibitor. Beilstein J Nanotechnol 2014; 5:2489-2497. [PMID: 25671144 PMCID: PMC4311660 DOI: 10.3762/bjnano.5.258] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 11/25/2014] [Indexed: 06/04/2023]
Abstract
Azole derivatives are common inhibitors of copper corrosion due to the chemical adsorption occurring on the metal surface that gives rise to a protective film. In particular, 1,2,4-triazole performs comparable to benzotriazole, which is much more widely used, but is by no means an environmentally friendly agent. In this study, we have analyzed the adsorption of 1,2,4-triazole on copper by taking advantage of the surface-enhanced Raman scattering (SERS) effect, which highlights the vibrational features of organic ligand monolayers adhering to rough surfaces of some metals such as gold, silver and copper. To ensure the necessary SERS activation, a roughening procedure was implemented on the copper substrates, resulting in nanoscale surface structures, as evidenced by microscopic investigation. To obtain sufficient information on the molecule-metal interaction and the formation of an anticorrosive thin film, the SERS spectra were interpreted with the aid of theoretical calculations based on the density functional theory (DFT) approach.
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Affiliation(s)
- Maurizio Muniz-Miranda
- Department of Chemistry “Ugo Schiff”, University of Florence, Via Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Francesco Muniz-Miranda
- Department of Chemistry and Geology, University of Modena and Reggio Emilia, Via Campi 183, 41125 Modena, Italy
| | - Stefano Caporali
- Department of Chemistry “Ugo Schiff”, University of Florence, Via Lastruccia 3, 50019 Sesto Fiorentino, Italy
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Muniz-Miranda F, Menziani MC, Pedone A. DFT and TD-DFT Assessment of the Structural and Optoelectronic Properties of an Organic–Ag14 Nanocluster. J Phys Chem A 2014; 119:5088-98. [DOI: 10.1021/jp507679f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Francesco Muniz-Miranda
- Department
of Chemical and
Geological Sciences (DSCG), University of Modena and Reggio Emilia (UniMoRE), Via G. Campi 183, I-41125, Modena, Italy
| | - Maria Cristina Menziani
- Department
of Chemical and
Geological Sciences (DSCG), University of Modena and Reggio Emilia (UniMoRE), Via G. Campi 183, I-41125, Modena, Italy
| | - Alfonso Pedone
- Department
of Chemical and
Geological Sciences (DSCG), University of Modena and Reggio Emilia (UniMoRE), Via G. Campi 183, I-41125, Modena, Italy
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Clark AJ, Cornia A, Felluga F, Gennaro A, Ghelfi F, Isse AA, Menziani MC, Muniz-Miranda F, Roncaglia F, Spinelli D. Arylsulfonyl Groups: The Best Cyclization Auxiliaries for the Preparation of ATRC γ-Lactams can be Acidolytically Removed. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402769] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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Muniz-Miranda F, Menziani MC, Pedone A. On the opto-electronic properties of phosphine and thiolate-protected undecagold nanoclusters. Phys Chem Chem Phys 2014; 16:18749-58. [DOI: 10.1039/c4cp02506g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A schematic description of the UV-vis spectrum of Au11(PPh3)7Cl3 nanoclusters. Metal → metal transitions are ubiquitous, metal → ligand transitions appear above the visible threshold, while ligand → metal and ligand → ligand transitions are much rarer in the investigated range of energies.
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Affiliation(s)
- Francesco Muniz-Miranda
- University of Modena an Reggio Emilia (UniMoRE)
- Dept. of Chemical and Geological Sciences (DSCG)
- Modena, Italy
| | - Maria Cristina Menziani
- University of Modena an Reggio Emilia (UniMoRE)
- Dept. of Chemical and Geological Sciences (DSCG)
- Modena, Italy
| | - Alfonso Pedone
- University of Modena an Reggio Emilia (UniMoRE)
- Dept. of Chemical and Geological Sciences (DSCG)
- Modena, Italy
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Muniz-Miranda F, Pagliai M, Cardini G, Righini R. Hydrogen bond effects in the vibrational spectra of 1,3-propanediol in acetonitrile:Ab initioand experimental study. J Chem Phys 2012; 137:244501. [DOI: 10.1063/1.4770499] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Muniz-Miranda F, Pagliai M, Cardini G, Righini R. Bifurcated Hydrogen Bond in Lithium Nitrate Trihydrate Probed by ab Initio Molecular Dynamics. J Phys Chem A 2012; 116:2147-53. [DOI: 10.1021/jp2120115] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Francesco Muniz-Miranda
- European Laboratory for Nonlinear Spectroscopy (LENS), via Nello Carrara
1, 50019 Sesto Fiorentino (Firenze), Italy
| | - Marco Pagliai
- Dipartimento di Chimica “Ugo
Schiff”, Università degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino (Firenze), Italy
| | - Gianni Cardini
- European Laboratory for Nonlinear Spectroscopy (LENS), via Nello Carrara
1, 50019 Sesto Fiorentino (Firenze), Italy
- Dipartimento di Chimica “Ugo
Schiff”, Università degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino (Firenze), Italy
| | - Roberto Righini
- European Laboratory for Nonlinear Spectroscopy (LENS), via Nello Carrara
1, 50019 Sesto Fiorentino (Firenze), Italy
- Dipartimento di Chimica “Ugo
Schiff”, Università degli Studi di Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino (Firenze), Italy
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Pagliai M, Muniz-Miranda F, Cardini G, Righini R, Schettino V. Spectroscopic properties with a combined approach of ab initio molecular dynamics and wavelet analysis. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.02.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Affiliation(s)
- Victor V. Volkov
- European Laboratory for Nonlinear Spectroscopy (LENS), Università di Firenze, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy
| | - Riccardo Chelli
- European Laboratory for Nonlinear Spectroscopy (LENS), Università di Firenze, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy
- Dipartimento di Chimica “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino, Italy
| | - Francesco Muniz-Miranda
- European Laboratory for Nonlinear Spectroscopy (LENS), Università di Firenze, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy
| | - Roberto Righini
- European Laboratory for Nonlinear Spectroscopy (LENS), Università di Firenze, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy
- Dipartimento di Chimica “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino, Italy
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Muniz-Miranda F, Pagliai M, Cardini G, Schettino V. Wavelet Transform for Spectroscopic Analysis: Application to Diols in Water. J Chem Theory Comput 2011; 7:1109-18. [PMID: 26606359 DOI: 10.1021/ct100625e] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Wavelet transform has been used to correlate spectroscopic and structural properties from trajectories obtained by ab initio molecular dynamics simulations. This method has been applied to hydrogen bond dynamics of glycols in heavy water solutions, showing how the stretching frequency of the intramolecular O-H bond changes with the intermolecular hydrogen-bond distance. The resulting wavelet spectrograms have been interpreted according to H-bond strength and stability.
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Affiliation(s)
- Francesco Muniz-Miranda
- European Laboratory for Non-Linear Spectroscopy (LENS), via Nello Carrara 1, 50019, Sesto Fiorentino (FI), Italy
| | - Marco Pagliai
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy
| | - Gianni Cardini
- European Laboratory for Non-Linear Spectroscopy (LENS), via Nello Carrara 1, 50019, Sesto Fiorentino (FI), Italy.,Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy
| | - Vincenzo Schettino
- European Laboratory for Non-Linear Spectroscopy (LENS), via Nello Carrara 1, 50019, Sesto Fiorentino (FI), Italy.,Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy
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Muniz-Miranda M, Pagliai M, Muniz-Miranda F, Schettino V. Raman and computational study of solvation and chemisorption of thiazole in silver hydrosol. Chem Commun (Camb) 2011; 47:3138-40. [DOI: 10.1039/c0cc05217e] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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