Vibrational Dynamics and Spectroscopy of Water at Porous g-C3N4 and C2N MaterialsIn this work, the vibrational dynamics and spectroscopy of deuterated water molecules (D2O) mimicking dense water layers at room temperature on the surfaces of two different C/N based materials…Deepak Ojha, Christopher Penschke, Peter Saalfrank·Mar 11, 2024SaveLearn
Chemical Potentials and the One-Electron Hamiltonian of the Second-Order Perturbation Theory from the Functional Derivative ApproachWe develop a functional derivative approach to calculate the chemical potentials of the second-order perturbation theory (MP2). In the functional derivative approach, the correlation part of the MP2…Jiachen Li, Weitao Yang·Mar 11, 2024SaveLearn
MP2-based composite extrapolation schemes can predict core-ionization energies for first-row elements with coupled-cluster level accuracyX-ray photoelectron spectroscopy (XPS) measures core-electron binding energies (CEBEs) to reveal element-specific insights into chemical environment and bonding. Accurate theoretical CEBE prediction…Anton Morgunov, Henry K. Tran, Oinam Romesh Meitei et al.·Mar 11, 2024SaveLearn
Quantifying spin contamination in algebraic diagrammatic construction theory of electronic excitationsAlgebraic diagrammatic construction (ADC) is a computationally efficient approach for simulating excited electronic states, absorption spectra, and electron correlation. Due to their origin in…Terrence L. Stahl, Alexander Yu. Sokolov·Mar 10, 2024SaveLearn
Aqueous Solution Chemistry In Silico and the Role of Data Driven ApproachesThe use of computer simulations to study the properties of aqueous systems is, today more than ever, an active area of research. In this context, during the last decade there has been a tremendous…Debarshi Banerjee, Khatereh Azizi, Colin K. Egan et al.·Mar 10, 2024SaveLearn
Manifestation of the Normal Intensity Distribution Law (NIDL) in the rovibrational emission spectrum of hydroxyl radicalThe latest experimental [Noll et al. Atmos. Chem. Phys. 20(2020)5269] and theoretical [Brooke et al. J. Quant. Spectr. Rad. Transfer 168(2016)142] data on the OH emission intensities are analyzed…Emile S. Medvedev, Aleksander Yu. Ermilov, Vladimir G. Ushakov·Mar 10, 2024SaveLearn
On the importance of experimental details: A Comment on "Non-Polaritonic Effects in Cavity-Modified Photochemistry"Recently, an article by the Barnes group reported on the experimental study of a photoisomerization reaction inside an optical cavity, claiming to reproduce previous results by Hutchison et al. and…Tal Schwartz, James A. Hutchison·Mar 9, 2024SaveLearn
Modelling Triatomic Biosignatures: Ozone and IsotopomersIn this work we present a new approach to produce spectroscopic constants and model first-principles synthetic spectra for all molecules of astrophysical interest. We have generalized our previous…Thomas M. Cross, David M. Benoit, Marco Pignatari et al.·Mar 8, 2024SaveLearn
Multi-reference coupled cluster theory using the normal ordered exponential ansatzProperly spin-adapted coupled-cluster theory for general open-shell configurations remains an active area of research in electronic structure theory. In this contribution we examine Lindgren's…Alexander Gunasekera, Nicholas Lee, David P. Tew·Mar 8, 2024SaveLearn
Quantum tomography of molecules using ultrafast electron diffractionWe propose a quantum tomography (QT) approach to retrieve the temporally evolving reduced density matrix in elecotronic state basis, where the populations and coherence between ground state and…Jiayang Jiang, Ming Zhang, Aosheng Gu et al.·Mar 8, 2024SaveLearn
Experimental Evidence of Direct Exchange Interaction Mediating Intramolecular Singlet Fission in Weakly-Coupled DimersThe electronic interaction between an optically active singlet state (S1S0) and a dark state of singlet multiplicity, known as correlated triplet pair (1[TT]), plays a crucial role in the…Oskar Kefer, Pavel V. Kolesnichenko, Lukas Ahrens et al.·Mar 8, 2024SaveLearn
Quantum embedding for molecules using auxiliary particles -- The ghost Gutzwiller AnsatzStrong/static electronic correlation mediates the emergence of remarkable phases of matter, and underlies the exceptional reactivity properties in transition metal-based catalysts. Modeling strongly…Carlos Mejuto-Zaera·Mar 8, 2024SaveLearn
Foundation for the SCF Approach in Density Functional TheoryWe extend ground-state density-functional theory to excited states and provide the theoretical formulation for the widely used SCF method for calculating excited-state energies and…Weitao Yang, Paul W. Ayers·Mar 7, 2024SaveLearn
Noise Reduction of Stochastic Density Functional Theory for MetalsDensity Functional Theory (DFT) has become a cornerstone in the modeling of metals. However, accurately simulating metals, particularly under extreme conditions, presents two significant challenges.…Jake P. Vu, Ming Chen·Mar 7, 2024SaveLearn
Low-Dimensional Projection of Reactive Islands in Chemical Reaction Dynamics Using a Supervised Dimensionality Reduction MethodTransition state theory is a standard framework for predicting the rate of a chemical reaction. Although the transition state theory has been successfully applied to numerous chemical reaction…Ryoichi Tanaka, Yuta Mizuno, Takuro Tsutsumi et al.·Mar 7, 2024SaveLearn
Separate and Detailed Treatment of Absolute Signal and Noise Enables NMR Under Adverse CircumstancesWhen deploying a spectrometer in an adverse environment, such as during a typical ODNP experiment or experiments that require low-volume low-field measurements, a clear and modern protocol for…A Guinness, AA Beaton, JM Franck·Mar 6, 2024SaveLearn
Predicting the Temperature Dependence of Surfactant CMCs Using Graph Neural NetworksThe critical micelle concentration (CMC) of surfactant molecules is an essential property for surfactant applications in industry. Recently, classical QSPR and Graph Neural Networks (GNNs), a deep…Christoforos Brozos, Jan G. Rittig, Sandip Bhattacharya et al.·Mar 6, 2024SaveLearn
Correlated Rotational Alignment Spectroscopy: A New Tool for High-Resolution Spectroscopy and the Analysis of Heterogeneous SamplesCorrelated rotational alignment spectroscopy correlates observables of ultrafast gas-phase spectroscopy with high-resolution, broad-band rotational Raman spectra. This article reviews the measurement…Thomas Schultz·Mar 6, 2024SaveLearn
Assessing the Global Natural Orbital Functional Approximation on Model Systems with Strong CorrelationIn the past decade, natural orbital functional (NOF) approximations have emerged as prominent tools for characterizing electron correlation. Despite their effectiveness, these approaches, which rely…Ion Mitxelena, Mario Piris·Mar 6, 2024SaveLearn
Improved theoretical prediction of nanoparticle sizes with the resistive-pulse techniqueWith the resistive-pulse technique (RPT), nanopores serve as the nanofluidic sensors of various analytes for their many physical and chemical properties. Here, we focus on the size measurement and…Zihao Gao, Long Ma, Zhe Liu et al.·Mar 6, 2024SaveLearn
Exchange-correlation energy from Green's functionsDFT calculations yield useful ground-state energies and densities, while Green's function techniques (such as GW) are mostly used to produce spectral functions. From the Galitskii-Migdal formula,…Steven Crisostomo, E. K. U. Gross, Kieron Burke·Mar 5, 2024SaveLearn
Environmentally driven symmetry-breaking quenches dual fluorescence in proflavineNonadiabatic couplings between several electronic excited states are ubiquitous in many organic chromophores and can significantly influence optical properties. A recent experimental study…Kye E. Hunter, Yuezhi Mao, Alex W. Chin et al.·Mar 5, 2024SaveLearn
Neural network backflow for ab-initio quantum chemistryThe ground state of second-quantized quantum chemistry Hamiltonians provides access to an important set of chemical properties. Wavefunctions based on ML architectures have shown promise in…An-Jun Liu, Bryan K. Clark·Mar 5, 2024SaveLearn
Isostructural Softening of Vulcanized NanocompositesFollowing a previous work evidencing that short poly-propylene glycol (PPG) chains incorporated to crude SBR-silica nanocomposites act as filler-network softeners without changing their structure, we…Guilhem P. Baeza, Florent Dalmas, Fabien Dutertre et al.·Mar 5, 2024SaveLearn
Coupling Polyatomic Molecules to Lossy Nanocavities: Lindblad versus Schr\"odinger descriptionThe use of cavities to impact molecular structure and dynamics has become popular. As cavities, in particular plasmonic nanocavities, are lossy and the lifetime of their modes can be very short,…Csaba Fábri, Attila G. Császár, Gábor J. Halász et al.·Mar 5, 2024SaveLearn