1
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Zeppilli D, Madabeni A, Nogara PA, Rocha JBT, Orian L. Reactivity of Zinc Fingers in Oxidizing Environments: Insight from Molecular Models Through Activation Strain Analysis. Chempluschem 2024:e202400252. [PMID: 38842473 DOI: 10.1002/cplu.202400252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 06/06/2024] [Accepted: 06/06/2024] [Indexed: 06/07/2024]
Abstract
The reactivity of Zn2+ tetrahedral complexes with H2O2 was investigated in silico, as a first step in their disruption process. The substrates were chosen to represent the cores of three different zinc finger protein motifs, i. e., a Zn2+ ion coordinated to four cysteines (CCCC), to three cysteines and one histidine (CCCH), and to two cysteines and two histidines (CCHH). The cysteine and histidine ligands were further simplified to methyl thiolate and imidazole, respectively. H2O2 was chosen as an oxidizing agent due to its biological role as a metabolic product and species involved in signaling processes. The mechanism of oxidation of a coordinated cysteinate to sulfenate-κS and the trends for the different substrates were rationalized through activation strain analysis and energy decomposition analysis in the framework of scalar relativistic Density Functional Theory (DFT) calculations at ZORA-M06/TZ2P ae // ZORA-BLYP-D3(BJ)/TZ2P. CCCC is oxidized most easily, an outcome explained considering both electrostatic and orbital interactions. The isomerization to sulfenate-κO was attempted to assess whether this step may affect the ligand dissociation; however, it was found to introduce a kinetic barrier without improving the energetics of the dissociation. Lastly, ligand exchange with free thiolates and selenolates was investigated as a trigger for ligand dissociation, possibly leading to metal ejection; molecular docking simulations also support this hypothesis.
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Affiliation(s)
- Davide Zeppilli
- Dipartimento di Scienze Chimiche Università degli Studi di Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Andrea Madabeni
- Dipartimento di Scienze Chimiche Università degli Studi di Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Pablo A Nogara
- Departamento de Bioquímica e Biologia Molecolar, Universidade Federal de Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
- Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense (IFSul), Av. Leonel de Moura Brizola, 2501, 96418-400, Bagé, RS, Brasil
| | - João B T Rocha
- Departamento de Bioquímica e Biologia Molecolar, Universidade Federal de Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Laura Orian
- Dipartimento di Scienze Chimiche Università degli Studi di Padova, Via Marzolo 1, 35131, Padova, Italy
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2
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Fusè M, Mazzeo G, Longhi G, Abbate S, Yang Q, Bloino J. Scaling-up VPT2: A feasible route to include anharmonic correction on large molecules. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 311:123969. [PMID: 38330757 DOI: 10.1016/j.saa.2024.123969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 01/18/2024] [Accepted: 01/24/2024] [Indexed: 02/10/2024]
Abstract
Vibrational analysis plays a crucial role in the investigation of molecular systems. Though methodologies like second-order vibrational perturbation theory (VPT2) have paved the way to more accurate simulations, the computational cost remains a difficult barrier to overcome when the molecular size increases. Building upon recent advances in the identification of resonances, we propose an approach making anharmonic simulations possible for large-size systems, typically unreachable by standard means. This relies on the fact that, often, only portions of the whole spectra are of actual interest. Therefore, the anharmonic corrections can be included selectively on subsets of normal modes directly related to the regions of interest. Starting from the VPT2 equations, we evaluate rigorously and systematically the impact of the truncated anharmonic treatment onto simulations. The limit and feasibility of the reduced-dimensionality approach are detailed, starting on a smaller model system. The methodology is then challenged on the IR absorption and vibrational circular dichroism spectra of an organometallic complex in three different spectral ranges.
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Affiliation(s)
- Marco Fusè
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123, Brescia, Italy.
| | - Giuseppe Mazzeo
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123, Brescia, Italy
| | - Giovanna Longhi
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123, Brescia, Italy; Istituto Nazionale di Ottica (INO), CNR, Research Unit of Brescia, c/o CSMT, VIA Branze 45, 25123, Brescia, Italy
| | - Sergio Abbate
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123, Brescia, Italy; Istituto Nazionale di Ottica (INO), CNR, Research Unit of Brescia, c/o CSMT, VIA Branze 45, 25123, Brescia, Italy
| | - Qin Yang
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 542/2, 160 00, Prague, Czech Republic
| | - Julien Bloino
- Scuola Normale Superiore, Piazza dei Cavalieri, 56125, Pisa, Italy.
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3
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Nottoli G, Ballotta B, Rampino S. Local Charge-Displacement Analysis: Targeting Local Charge-Flows in Complex Intermolecular Interactions. J Chem Phys 2022; 157:084107. [DOI: 10.1063/5.0095142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Charge-displacement (CD) analysis has recently proven to be a simple and powerful scheme for quantitatively analyzing the profile of the charge redistribution occurring upon intermolecular interactions along a given interaction axis. However, when two molecular fragments bind through complex interactions involving multiple concurrent charge flows, ordinary CD analysis is capable of providing only an averaged picture of the related charge-flow profiles and no detailed information on each of them. In this article, we combine CD analysis with a Hirshfeld partitioning of the molecular charge redistribution for a local analysis on focused portions of the molecule, allowing for a detailed characterization of one charge flow at a time. The resulting scheme - the local charge-displacement (LCD) analysis - is tested on the intriguing case of the dimethyl sulfide (DMS)-sulfur dioxide (SO2) complex, characterized by concurrent charge flows relating to a sulfur-sulfur homo-chalcogen interaction and a pair of hydrogen bonds. The LCD scheme is then applied to the analysis of multiple hydrogen bonding in the acetic acid dimer, of base-pairing interactions in DNA, and of ambifunctional hydrogen bonding in the ammonia-pyridine complex.
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4
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Sagresti L, Rampino S. Charge-Flow Profiles along Curvilinear Paths: A Flexible Scheme for the Analysis of Charge Displacement upon Intermolecular Interactions. Molecules 2021; 26:molecules26216409. [PMID: 34770822 PMCID: PMC8586930 DOI: 10.3390/molecules26216409] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 11/26/2022] Open
Abstract
The Charge-Displacement (CD) analysis has proven to be a powerful tool for a quantitative characterization of the electron-density flow occurring upon chemical bonding along a suitably chosen interaction axis. In several classes of interesting intermolecular interactions, however, an interaction axis cannot be straightforwardly defined, and the CD analysis loses consistency and usefulness. In this article, we propose a general, flexible reformulation of the CD analysis capable of providing a quantitative view of the charge displacement along custom curvilinear paths. The new scheme naturally reduces to ordinary CD analysis if the path is chosen to be a straight line. An implementation based on a discrete sampling of the electron densities and a Voronoi space partitioning is described and shown in action on two test cases of a metal-carbonyl and a pyridine-ammonia complex.
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Affiliation(s)
- Luca Sagresti
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy;
- Istituto Nazionale di Fisica Nucleare (INFN)—Sezione di Pisa, Largo Bruno Pontecorvo 3, 56127 Pisa, Italy
| | - Sergio Rampino
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy;
- Istituto Nazionale di Fisica Nucleare (INFN)—Sezione di Pisa, Largo Bruno Pontecorvo 3, 56127 Pisa, Italy
- Correspondence:
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5
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Asymmetric Hydrogenation of 1-aryl substituted-3,4-Dihydroisoquinolines with Iridium Catalysts Bearing Different Phosphorus-Based Ligands. Catalysts 2020. [DOI: 10.3390/catal10080914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Starting from the chiral 5,6,7,8-tetrahydroquinolin-8-ol core, a series of amino-phosphorus-based ligands was realized. The so-obtained amino-phosphine ligand (L1), amino-phosphinite (L2) and amino-phosphite (L3) were evaluated in iridium complexes together with the heterobiaryl diphosphines tetraMe-BITIOP (L4), Diophep (L5) and L6 and L7 ligands, characterized by mixed chirality. Their catalytic performance in the asymmetric hydrogenation (AH) of the model substrate 6,7-dimethoxy-1-phenyl-3,4-dihydroisoquinoline 1a led us to identify Ir-L4 and Ir-L5 catalysts as the most effective. The application of these catalytic systems to a library of differently substituted 1-aryl-3,4-dihydroisoquinolines afforded the corresponding products with variable enantioselective levels. The 4-nitrophenyl derivative 3b was obtained in a complete conversion and with an excellent 94% e.e. using Ir-L4, and a good 76% e.e. was achieved in the reduction of 2-nitrophenyl derivative 6a using Ir-L5.
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6
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Martino M, Salvadori A, Lazzari F, Paoloni L, Nandi S, Mancini G, Barone V, Rampino S. Chemical promenades: Exploring potential-energy surfaces with immersive virtual reality. J Comput Chem 2020; 41:1310-1323. [PMID: 32058615 DOI: 10.1002/jcc.26172] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/16/2020] [Accepted: 02/03/2020] [Indexed: 01/28/2023]
Abstract
The virtual-reality framework AVATAR (Advanced Virtual Approach to Topological Analysis of Reactivity) for the immersive exploration of potential-energy landscapes is presented. AVATAR is based on modern consumer-grade virtual-reality technology and builds on two key concepts: (a) the reduction of the dimensionality of the potential-energy surface to two process-tailored, physically meaningful generalized coordinates, and (b) the analogy between the evolution of a chemical process and a pathway through valleys (potential wells) and mountain passes (saddle points) of the associated potential energy landscape. Examples including the discovery of competitive reaction paths in simple A + BC collisional systems and the interconversion between conformers in ring-puckering motions of flexible rings highlight the innovation potential that augmented and virtual reality convey for teaching, training, and supporting research in chemistry.
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Affiliation(s)
- Marta Martino
- SMART Laboratory, Scuola Normale Superiore, Pisa, Italy
| | | | | | | | - Surajit Nandi
- SMART Laboratory, Scuola Normale Superiore, Pisa, Italy
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7
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Potenti S, Paoloni L, Nandi S, Fusè M, Barone V, Rampino S. Chemical bonding in cuprous complexes with simple nitriles: octet rule and resonance concepts versus quantitative charge-redistribution analysis. Phys Chem Chem Phys 2020; 22:20238-20247. [DOI: 10.1039/d0cp01536a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Resonance structures for six cuprous complexes with simple nitriles are interpreted by means of a quantitative analysis of charge redistribution upon copper-nitrile bonding.
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Affiliation(s)
| | | | - Surajit Nandi
- Scuola Normale Superiore
- SMART Laboratory
- 56126 Pisa
- Italy
| | - Marco Fusè
- Scuola Normale Superiore
- SMART Laboratory
- 56126 Pisa
- Italy
| | - Vincenzo Barone
- Scuola Normale Superiore
- SMART Laboratory
- 56126 Pisa
- Italy
- Istituto Nazionale di Fisica Nucleare (INFN) – Sezione di Pisa
| | - Sergio Rampino
- Scuola Normale Superiore
- SMART Laboratory
- 56126 Pisa
- Italy
- Istituto Nazionale di Fisica Nucleare (INFN) – Sezione di Pisa
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8
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Jiménez ZA. Teaching and Learning Chemistry via Augmented and Immersive Virtual Reality. ACTA ACUST UNITED AC 2019. [DOI: 10.1021/bk-2019-1318.ch003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Affiliation(s)
- Zulma A. Jiménez
- Notre Dame of Maryland University, 4701 North Charles Street, Baltimore, Maryland 21210, United States
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9
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Facchetti G, Pellegrino S, Bucci R, Nava D, Gandolfi R, Christodoulou MS, Rimoldi I. Vancomycin-Iridium (III) Interaction: An Unexplored Route for Enantioselective Imine Reduction. MOLECULES (BASEL, SWITZERLAND) 2019; 24:molecules24152771. [PMID: 31366120 PMCID: PMC6695689 DOI: 10.3390/molecules24152771] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 07/26/2019] [Accepted: 07/30/2019] [Indexed: 11/20/2022]
Abstract
The chiral structure of antibiotic vancomycin (Van) was exploited as an innovative coordination sphere for the preparation of an IrCp* based hybrid catalysts. We found that Van is able to coordinate iridium (Ir(III)) and the complexation was demonstrated by several analytical techniques such as MALDI-TOF, UV, Circular dichroism (CD), Raman IR, and NMR. The hybrid system so obtained was employed in the Asymmetric Transfer Hydrogenation (ATH) of cyclic imines allowing to obtain a valuable 61% e.e. (R) in the asymmetric reduction of quinaldine 2. The catalytic system exhibited a saturation kinetics with a calculated efficiency of Kcat/KM = 0.688 h−1mM−1.
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Affiliation(s)
- Giorgio Facchetti
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy
| | - Sara Pellegrino
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy
| | - Raffaella Bucci
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy
| | - Donatella Nava
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy
| | - Raffaella Gandolfi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy
| | - Michael S Christodoulou
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy
| | - Isabella Rimoldi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy.
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10
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A Modern-Fortran Program for Chemical Kinetics on Top of Anharmonic Vibrational Calculations. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/978-3-030-24311-1_29] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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11
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Hussein S, Priester D, Beet P, Cottom J, Hart SJ, James T, Thatcher RJ, Whitwood AC, Slattery JM. Filling a Niche in "Ligand Space" with Bulky, Electron-Poor Phosphorus(III) Alkoxides. Chemistry 2019; 25:2262-2271. [PMID: 30394591 DOI: 10.1002/chem.201804805] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/02/2018] [Indexed: 01/07/2023]
Abstract
The chemistry of phosphorus(III) ligands, which are of key importance in coordination chemistry, organometallic chemistry and catalysis, is dominated by relatively electron-rich species. Many of the electron-poor PIII ligands that are readily available have relatively small steric profiles. As such, there is a significant gap in "ligand space" where more sterically bulky, electron-poor PIII ligands are needed. This contribution discusses the coordination chemistry, steric and electronic properties of PIII ligands bearing highly fluorinated alkoxide groups of the general form PRn (ORF )3-n , where R=Ph, RF =C(H)(CF3 )2 and C(CF3 )3 ; n=1-3. These ligands are simple to synthesize and a range of experimental and theoretical methods suggest that their steric and electronic properties can be "tuned" by modification of their substituents, making them excellent candidates for large, electron-poor ligands.
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Affiliation(s)
- Sharifa Hussein
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Denis Priester
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Paul Beet
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Jonathon Cottom
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Sam J Hart
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Tim James
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Robert J Thatcher
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Adrian C Whitwood
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - John M Slattery
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
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12
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Salvadori A, Fusè M, Mancini G, Rampino S, Barone V. Diving into chemical bonding: An immersive analysis of the electron charge rearrangement through virtual reality. J Comput Chem 2018; 39:2607-2617. [DOI: 10.1002/jcc.25523] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 06/15/2018] [Accepted: 06/18/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Andrea Salvadori
- SMART Laboratory, Scuola Normale Superiore, Piazza dei Cavalieri 7; 56126 Pisa Italy
| | - Marco Fusè
- SMART Laboratory, Scuola Normale Superiore, Piazza dei Cavalieri 7; 56126 Pisa Italy
| | - Giordano Mancini
- SMART Laboratory, Scuola Normale Superiore, Piazza dei Cavalieri 7; 56126 Pisa Italy
| | - Sergio Rampino
- SMART Laboratory, Scuola Normale Superiore, Piazza dei Cavalieri 7; 56126 Pisa Italy
| | - Vincenzo Barone
- SMART Laboratory, Scuola Normale Superiore, Piazza dei Cavalieri 7; 56126 Pisa Italy
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13
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The possibility of iron chelation therapy in the presence of different HPOs; a molecular approach to the non-covalent interactions and binding energies. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.04.065] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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De Santis M, Rampino S, Quiney HM, Belpassi L, Storchi L. Charge-Displacement Analysis via Natural Orbitals for Chemical Valence in the Four-Component Relativistic Framework. J Chem Theory Comput 2018; 14:1286-1296. [DOI: 10.1021/acs.jctc.7b01077] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matteo De Santis
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Sergio Rampino
- Istituto di Scienze e Tecnologie Molecolari, Consiglio Nazionale delle Ricerche c/o Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Harry M. Quiney
- ARC Centre of Excellence for Advanced Molecular Imaging, School of Physics, The University of Melbourne, 3010 Victoria, Australia
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Molecolari, Consiglio Nazionale delle Ricerche c/o Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Consortium for Computational Molecular and Materials Sciences (CMS)2, Via Elce di Sotto, 8, 06123 Perugia, Italy
| | - Loriano Storchi
- Istituto di Scienze e Tecnologie Molecolari, Consiglio Nazionale delle Ricerche c/o Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Dipartimento di Farmacia, Università degli Studi ‘G. D’Annunzio’, Via dei Vestini 31, 66100 Chieti, Italy
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15
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Licari D, Fusè M, Salvadori A, Tasinato N, Mendolicchio M, Mancini G, Barone V. Towards the SMART workflow system for computational spectroscopy. Phys Chem Chem Phys 2018; 20:26034-26052. [DOI: 10.1039/c8cp03417f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Is it possible to convert highly specialized research in the field of computational spectroscopy into robust and user-friendly aids to experiments and industrial applications?
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Affiliation(s)
- Daniele Licari
- Scuola Normale Superiore
- 56126 Pisa
- Italy
- Istituto Italiano di Tecnologia
- 16163 Genova
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16
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Fusè M, Rimoldi I, Facchetti G, Rampino S, Barone V. Exploiting coordination geometry to selectively predict the σ-donor and π-acceptor abilities of ligands: a back-and-forth journey between electronic properties and spectroscopy. Chem Commun (Camb) 2018; 54:2397-2400. [DOI: 10.1039/c7cc09627e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Coordination geometry switches the carbonyl stretching frequency into a selective probe of the σ-donor and π-acceptor abilities of ligands.
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Affiliation(s)
| | - Isabella Rimoldi
- Dipartimento di Scienze Farmaceutiche
- Università di Milano
- 20133 Milano
- Italy
| | - Giorgio Facchetti
- Dipartimento di Scienze Farmaceutiche
- Università di Milano
- 20133 Milano
- Italy
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17
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Neary MC, Quinlivan PJ, Parkin G. Zerovalent Nickel Compounds Supported by 1,2-Bis(diphenylphosphino)benzene: Synthesis, Structures, and Catalytic Properties. Inorg Chem 2017; 57:374-391. [DOI: 10.1021/acs.inorgchem.7b02636] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Michelle C. Neary
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Patrick J. Quinlivan
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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18
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Gaggioli CA, Bistoni G, Ciancaleoni G, Tarantelli F, Belpassi L, Belanzoni P. Modulating the Bonding Properties of N-Heterocyclic Carbenes (NHCs): A Systematic Charge-Displacement Analysis. Chemistry 2017; 23:7558-7569. [DOI: 10.1002/chem.201700638] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Carlo Alberto Gaggioli
- Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8 06123 Perugia Italy
| | - Giovanni Bistoni
- Max Planck Institute for Chemical Energy Conversion; Stiftstrasse 34-36 45470 Mülheim an der Ruhr Germany
| | - Gianluca Ciancaleoni
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; via Giuseppe Moruzzi 13 56124 Pisa Italy
| | - Francesco Tarantelli
- Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8 06123 Perugia Italy
- Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM) c/o Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; via Elce di Sotto 8 06123 Perugia Italy
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM) c/o Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; via Elce di Sotto 8 06123 Perugia Italy
| | - Paola Belanzoni
- Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8 06123 Perugia Italy
- Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM) c/o Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; via Elce di Sotto 8 06123 Perugia Italy
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19
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Su Z, He W, Wang J, Zuo Y, Hu C. Theoretical investigation on donor–acceptor interaction between a carbonyl compound and an N,N′-dioxide–Sc(iii) complex. RSC Adv 2017. [DOI: 10.1039/c7ra12258f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The counterion and substituent on amide of the N,N′-dioxide ligand could affect electrostatic energy (ΔVelstat) as well as orbital energy (ΔEorb) between CH2O and Sc(iii)-based catalyst, adjusting the Lewis acidity of the metal centre.
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Affiliation(s)
- Zhishan Su
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Weiying He
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Junming Wang
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Yini Zuo
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Changwei Hu
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
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