Institut de Química Teòrica i Computacional (IQTCUB)

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Els materials de recerca de la Universitat de Barcelona (UB) a RECERCAT s'obtenen de les col·leccions de Recerca del Dipòsit Digital de la UB.
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Política d’accés obert a la UB


Publicacions en accés obert derivades de l'activitat investigadora del professorat de la Universitat de Barcelona.

Enviaments recents

Llista ítems afegits recenment

Unlocking the predictive power of quantum-inspired representations for intermolecular properties in machine learning 

Santiago, Raul; Vela Llausí, Sergi; Deumal i Solé, Mercè; Ribas Ariño, Jordi (Data de publicació: 2026-03-23)

The quest for accurate and efficient Machine Learning (ML) models to predict complex molecular properties has driven the development of new quantum-inspired representations (QIR). This study introduces MODA (Molecular ...

Multi-Modal Constrastive Learning for Chemical Structure Elucidation with VibraCLIP 

Rocabert Oriols, Pau; Lopez, Noelia; Heras-Domingo, Javier; Lo Conte, Camilla (Data de publicació: 2026-03-19)

Identifying molecular structures from vibrational spectra is central to chemical analysis but remains challenging due to spectral ambiguity and the limitations of single-modality methods. While deep learning has advanced ...

Transfer learning based on atomic feature extraction for the prediction of experimental <sup>13</sup>C chemical shifts 

Ivković, Žarko; Jover Modrego, Jesús; Harvey, Jeremy (Data de publicació: 2026-03-02)

Forecasting experimental chemical shifts of organic compounds is a long-standing challenge in organic chemistry. Recent advances in machine learning (ML) have led to routines that surpass the accuracy of ab initio Density ...

Time-optimal control of a solid-state spin amidst dynamical quantum wind 

Albareda, Guillermo; Guo, Guang-Can; Sun, Fang-Wen; Dong, Yang; Jiang, Wang; Gao, Xue-Dong; Yu, Cui; Liu, Yong; Zhang, Shao-Chun; Chen, Xiang-Dong; Moreira, Ibério de Pinho Ribeiro; Bofill i Villà, Josep M.; Sentis, Gael; Ramos, Ramon (Data de publicació: 2026-01-22)

Time-optimal control holds promise across the full spectrum of quantum technologies, where the rapid generation of unitary gates and state transformations is crucial to mitigate decoherence effects. In practical scenarios, ...

On the role of dynamic electron correlation in non-orthogonal configuration interaction with fragments 

Sanchez-Mansilla, Aitor; Sousa Romero, Carmen; Kathir, R. K.; Broer, Ria; Straatsma, T. P.; de Graaf, Coen (Data de publicació: 2026-01-16)

Two different approaches have been implemented to include the effect of dynamic electron correlation in the Non-Orthogonal Configuration Interaction for Fragments (NOCI-F) method. The first is based on shifting the diagonal ...

Exploring the photoactive properties of promising MXenes for water splitting 

Ontiveros Cruz, Diego; Viñes Solana, Francesc; Sousa Romero, Carmen (Data de publicació: 2026-01-09)

The photoactive properties and effectiveness of a selected group of ten terminated MXenes—Sc2CT2, Y2CT2 (T = Cl, Br, S, and Se), Y2CI2 and Zr2CO2—has been deeply studied by means of density functional theory (DFT). Here ...

Computational Study of a Copper-Catalyzed Synthesis of Fluoroalcohols from Alkylboranes and Ketones 

Gómez-Mudarra, Francisco A.; Aullón López, Gabriel; Jover Modrego, Jesús (Data de publicació: 2025-11-05)

Fluoroalcohols are a class of organic compounds containing one or more fluorine atoms together with an alcohol group in their molecular structure. These fluorinated species have a wide range of applications due to their ...

Determining the chemical ordering in nanoalloys by considering atomic coordination types 

Farris, Riccardo; Neyman, Konstantin M.; Bruix Fusté, Albert (Data de publicació: 2025-07-16)

The energetically most favorable chemical ordering of bimetallic nanoparticles can be characterized by combining global optimization algorithms and surrogate energy models. The latter approximate the energy of nanoalloys ...

Contrasting Metallic (Rh0) and Carbidic (2D-Mo2C MXene) Surfaces in Olefin Hydrogenation Provides Insights on the Origin of the Pairwise Hydrogen Addition 

Meng, Ling; Pokochueva, Ekaterina; Chen, Zixuan; Fedorov, Alexey; Viñes Solana, Francesc; Illas i Riera, Francesc; Koptyug, Igor V. (Data de publicació: 2025-07-24)

Kinetic studies are vital for gathering mechanistic insights into heterogeneously catalyzed hydrogenation of unsaturated organic compounds (olefins), where the Horiuti–Polanyi mechanism is ubiquitous on metal catalysts. ...

Ferrofluid-based bioink for 3d printed skeletal muscle tissues with enhanced force and magnetic response 

Fuentes Llanos, Judith; Guix Noguera, Maria; Cenev, Zoran M.; Bakenecker, Anna; Ruiz González, Noelia; Beaune, Grégory; Timonen, Jaakko V. I.; Sánchez Ordóñez, Samuel; Magdanz, Veronika (Data de publicació: 2025-08-01)

3D printing has emerged as a transformative technology in several manufacturing processes, being of particular interest in biomedical research for allowing the creation of 3D structures that mimic native tissues. The process ...

Substrate-assisted mechanism for the degradation of n-glycans by a gut bacterial mannoside phosphorylase 

Alfonso Prieto, Mercedes; Cuxart Sanchez, Irene; Potocki-Véronèse, Gabrielle; André, Isabelle; Rovira i Virgili, Carme (Data de publicació: 2024-05-17)

The unknown human gut bacterium mannoside phosphorylase (UhgbMP) is involved in the metabolization of eukaryotic N-glycans lining the intestinal epithelium, a factor associated with the onset and symptoms of inflammatory ...

Locating saddle points of any index on potential energy surfaces by the generalized gentlest ascent dynamics 

Quapp, Wolfgang; Bofill i Villà, Josep M. (Data de publicació: 2020-03-25)

The system of ordinary differential equations for the method of the gentlest ascent dynamics (GAD) is tested to determine the saddle points of the potential energy surface of some molecules. The method has been proposed ...

Metal-Organic Nanocapsules with Functionalized s-Heptazine Ligands 

Maxwell Villacorta, Lindley Andrés; Martinez, Hector; Martin-Rodriguez, Alejandro; Gómez Coca, Silvia; Rissanen, Kari; Ruiz Sabín, Eliseo (Data de publicació: 2022-04-19)

A metalloorganic capsule was synthesized where the ligand is a derivative of heptazine with three carboxylic groups that are coordinated to CuII cations, forming paddle-wheel motifs. Each nanocapsule is neutral, with 12 ...

Revisiting the structure and properties of mid-valent monopentamethylcyclopentadienylchromium complexes 

Calvo-Molina, Adrián; Jover Modrego, Jesús; Pérez-Redondo, Adrián; Yélamos, Carlos (Data de publicació: 2025-07-10)

The structure and properties of half-sandwich chromium complexes derived from the dinuclear chloride compound [{CrCp*(μ-Cl)}2] (1) (Cp* = η5-C5Me5) are revisited. Complex 1 does not react with H2 and N2 but cleaves the ...

Towards a theory of mechanochemistry. From the very beginnings 

Quapp, Wolfgang; Bofill i Villà, Josep M.; Ribas Ariño, Jordi (Data de publicació: 2020-03-18)

A core idea in the context of mechanochemistry is that applying an external tensile force along a reaction coordinate should enhance the chemical reaction of interest. Here, we analyze perturbed generic molecular structures: ...

Co/Fe(alpha-Alkyl-tpdt)(2) (x-): Alkyl-Substituted Cobalt and Iron Bis-dithiolenethiophenic Complexes 

Silva, Rafaela A. L.; Santos, Rodrigo; Andrade, Marta M.; Santos, Isabel C.; Coutinho, Joana T.; Pereira, Laura C. J.; Waerenborgh, Joao C.; Vieira, Bruno J. C.; Cirera Fernández, Jordi; Ruiz Sabín, Eliseo; Almeida, Manuel; Belo, Dulce (Data de publicació: 2022-04-19)

Tetraphenylphosphonium salts of Co and Fe complexes with alkyl substituted, tert-butyl (tb) and isopropyl (dp), 2,3-thiophenedithiolate (α-tpdt) ligands, namely TPP[Co(α-tb-tpdt)2] (3), TPP2[Fe(α-tb-tpdt)2]2 (4a-b), ...

Tuning Single-Molecule Conductance in Metalloporphyrin-Based Wires via Supramolecular Interactions. 

Aragonès, Albert C.; Martín Rodríguez, Alejandro; Aravena Ponce, Daniel Alejandro; Puigmartí-Luis, Josep; Amabilino, David B.; Aliaga-Alcalde, Núria; González Campo, Arántzazu; Ruiz Sabín, Eliseo; Díez Pérez, Ismael (Data de publicació: 2022-04-19)

Nature has developed amazing supramolecular constructs to deliver outstanding charge transport capabilities using metalloporphyrin-based supramolecular stacks.1 Here we are incorporating simple, naturally inspired ...

Assessment of the SCAN Functional for Spin-State Energies in Spin-Crossover Systems 

Cirera Fernández, Jordi; Ruiz Sabín, Eliseo (Data de publicació: 2022-04-19)

The Strongly-Constrained and Appropriately Normed (SCAN) functional has been tested towards the calculation of spin-state energy differences in a dataset of 20 spin-crossover (SCO) systems, ranging from d4 to d7. The results ...

Thermodynamic kinetic and dynamic aspects of biogas upgrading using nano-engineered grazynes 

Viñes Solana, Francesc; Calzada Escrig, Adrià; Gamallo Belmonte, Pablo (Data de publicació: 2025-02-25)

Different nano-engineered grazynes have been studied as possible membranes to separate methane (CH4) from carbon dioxide (CO2) by density functional theory (DFT) and molecular dynamics (MD) computational simulations. The ...

Comment on: Exploring the potential energy landscape of the Thomson problem via Newton homotopies 

Bofill i Villà, Josep M. (Data de publicació: 2020-03-30)

We show that the Newton homotopy used in the paper [D. Mehta et al., J. Chem. Phys. 142, 194113 (2015)] is related to the Newton trajectory method. With the theory of the Newton trajectories at hand, we can sharpen some ...

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