Search Results - "Duarte, Leonardo"
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IR intensities for out-of-plane vibrations at planar transition state structures: The NX3 series
Published in Vibrational spectroscopy (01-03-2024)“…The ground state pyramidal geometries of NX3 (X = H, F, Cl, Br) molecules might undergo a process called “pyramidal inversion”, with a planar transition state…”
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Interpreting the contribution of sensors in blind source extraction by means of Shapley values
Published in IEEE signal processing letters (01-01-2023)“…Several practical applications can be formulated as a problem of estimating a source of interest from a set of mixed data collected by different sensors…”
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Energetic Origins of Force Constants: Adding a New Dimension to the Hessian Matrix via Interacting Quantum Atoms
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (08-12-2022)“…The Interacting Quantum Atoms (IQA) energy decomposition scheme divides the total energy of a molecule into intra- and interatomic contributions. While the…”
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Are “GAPT Charges” Really Just Charges?
Published in Journal of chemical information and modeling (23-08-2021)“…Generalized atomic polar tensor (GAPT) has turned into a very popular charge model since it was proposed three decades ago. During this period, several works…”
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Electronic Distribution of SN2 IRC and TS Structures: Infrared Intensities of Imaginary Frequencies
Published in Journal of chemical theory and computation (12-04-2022)“…A novel IRC-TS-CCTDP method to investigate transition states (TS) is proposed in which changes in the molecular geometry follow atomic displacements…”
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Characteristic Substituent Effect Model for the Infrared Intensities of the X2CY (X = H, F, Cl, Br; Y = O, S) Molecules
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (13-04-2023)“…Many years ago, the gas-phase infrared fundamental intensities of Cl2CS were determined within experimental error from the experimental intensities and…”
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Characteristic Substituent Effect Model for the Infrared Intensities of the X 2 CY (X = H, F, Cl, Br; Y = O, S) Molecules
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (13-04-2023)“…Many years ago, the gas-phase infrared fundamental intensities of Cl CS were determined within experimental error from the experimental intensities and…”
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Electronic Distribution of S N 2 IRC and TS Structures: Infrared Intensities of Imaginary Frequencies
Published in Journal of chemical theory and computation (12-04-2022)“…A novel IRC-TS-CCTDP method to investigate transition states (TS) is proposed in which changes in the molecular geometry follow atomic displacements…”
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9
An Interacting Quantum Atoms (IQA) and Relative Energy Gradient (REG) Analysis of the Anomeric Effect
Published in Molecules (Basel, Switzerland) (06-08-2022)“…The explanation of the anomeric effect in terms of underlying quantum properties is still controversial almost 70 years after its introduction. Here, we use a…”
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QTAIM Atomic Charge and Polarization Parameters and Their Machine-Learning Transference among Boron-Halide Molecules
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (30-04-2020)“…Atomic charges are invariant for out-of-plane distortions, making their molecular vibrations enticing for electronic structure studies. Of planar molecules,…”
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Unavoidable failure of point charge descriptions of electronic density changes for out-of-plane distortions
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (15-04-2022)“…[Display omitted] •Point charges fail to reproduce IR intensities for oop bendings in planar systems.•Point charge models lack an additional degree of freedom…”
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Atomic Polarizations, Not Charges, Determine CH Out-of-Plane Bending Intensities of Benzene Molecules
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (27-12-2018)“…Infrared gas phase intensities are reported for the first time for 23 CH out-of-plane bending vibrations of eight substituted benzene molecules and naphthalene…”
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Influence of resin matrix on the rheology, translucency, and curing potential of experimental flowable composites for bulk-fill applications
Published in Dental materials (01-06-2021)“…•Bulkfills is considered the most recent approach by the industry and have impacted the possibilities of clinical use.•Manufacturers have claimed to introduce…”
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Infrared intensities of $$(B_{6}C)^{2-}$$: a true challenge for DFT methods
Published in Journal of molecular modeling (01-10-2022)Get full text
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A second-order statistics method for blind source separation in post-nonlinear mixtures
Published in Signal processing (01-02-2019)“…•Derivation of the conditions and the constraints on the Post-Nonlinear (PNL) model for Second-Order Statistics (SOS)-based separation.•Proposition of an…”
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Atomic charge and atomic dipole modeling of gas-phase infrared intensities of fundamental bands for out-of-plane CH and CF bending vibrations
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (15-04-2021)“…[Display omitted] •Atomic dipoles necessary to model out of plane infrared intensities.•Atomic polarization important for electron density changes of out of…”
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Change Detection in UWB SAR Images Based on Robust Principal Component Analysis
Published in Remote sensing (Basel, Switzerland) (01-06-2020)“…This paper addresses the use of a data analysis tool, known as robust principal component analysis (RPCA), in the context of change detection (CD) in…”
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AC/DC Analysis: Broad and Comprehensive Approach to Analyze Infrared Intensities at the Atomic Level
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (22-04-2021)“…We present a complete theoretical protocol to partition infrared intensities into terms owing to individual atoms by two different but related approaches: the…”
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A UEP Method for Imaging Low-Orbit Satellites Based on CCSDS Recommendations
Published in IEEE geoscience and remote sensing letters (01-11-2018)“…Remote sensing satellites allow continuous information acquisition from large areas of the earth and have been intensively applied in a number of applications,…”
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FTIR and dispersive gas phase absolute infrared intensities of hydrocarbon fundamental bands
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (05-05-2019)“…New experimental intensity results obtained by band integration from the PNNL (Pacific Northwest National Laboratory) spectral library are reported for 26 CH…”
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