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Wei R, Wang XF, Hu C, Liu LL. (Phosphino)(stannyl)carbene. Chem Commun (Camb) 2024; 60:9793-9796. [PMID: 39161315 DOI: 10.1039/d4cc03275f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
The synthesis of a (phosphino)(stannyl)carbene is documented. The combination of phosphino and stannyl substituents imparts a highly ambiphilic nature to this carbene, enabling reactions with cyanide, isocyanide, and carbon monoxide. This leads to rare stannylketenimines and a stannylketene.
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Affiliation(s)
- Rui Wei
- Department of Chemistry and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen, China.
| | - Xin-Feng Wang
- Department of Chemistry and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen, China.
| | - Chaopeng Hu
- Department of Chemistry and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen, China.
| | - Liu Leo Liu
- Department of Chemistry and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen, China.
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2
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Treto-Suárez MA, Hidalgo-Rosa Y, Saavedra-Torres M, Koivisto BD, Mena Ulecia K, Páez-Hernández D, Zarate X, Schott E. Tunable optical properties of isoreticular UiO-67 MOFs for photocatalysis: a theoretical study. Dalton Trans 2024; 53:11310-11325. [PMID: 38898805 DOI: 10.1039/d4dt01017e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
A theoretical study of the reported photocatalytic systems based on Zr-based MOF (UiO-67) with biphenyl-4,4'-dicarboxylic acid (bpdc) and 2,2'-bipyridine-5,5'-dicarboxylic acid (bpydc) as linkers was performed. Quantum chemical calculations were carried out to understand the optical properties of the materials and to facilitate the rational design of new UiO-67 derivatives with potentially improved features as photocatalysts under ambient conditions. Hence, the effect of the structural modifications on the optical properties was studied considering different designs based on the nature of the linkers: in 1 only the bpdc linker was considered, or the mixture 1 : 1 between bpdc and bpydc linkers (labeled as 1A). Also, substituents R, -NH2, and -SH, were included in the 1A MOF only over the bpdc linker (labeled as 1A-bpdc-R) and on both bpdc and bpydc linkers (labeled as 1A-R). Thus a family of six isoreticular UiO-67 derivatives was theoretically characterized using Density Functional Theory (DFT) calculations on the ground singlet (S0) and first excited states (singlet and triplet) using Time-Dependent Density Functional Theory (TD-DFT), multiconfigurational post-Hartree-Fock method via Complete Active Space Self-Consistent Field (CASSCF). In addition, the use of periodic DFT calculations suggest that the energy transfer (ET) channel between bpdc and bpydc linkers might generate more luminescence quenching of 1A when compare to 1. Besides, the results suggest that the 1A-R (R: -SH and NH2) can be used under ambient conditions; however, the ET exhibited by 1A, cannot take place in the same magnitude in these systems. These ET can favor the photocatalytic reduction of a potential metal ion, that can coordinate with the bpydc ligand, via LMCT transition. Consequently, the MOF might be photocatalytically active against molecules of interest (such as H2, N2, CO2, among others) with photo-reduced metal ions. These theoretical results serve as a useful tool to guide experimental efforts in the design of new photocatalytic MOF-based systems.
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Affiliation(s)
- Manuel A Treto-Suárez
- Departamento de Física y Química, Facultad de Ingeniería, IDETECO, Universidad Autónoma de Chile, Av. Alemania 01090, 4810101-Temuco, Chile.
| | - Yoan Hidalgo-Rosa
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, 8580745, Chile
| | - Mario Saavedra-Torres
- Millennium Nucleus in Catalytic Processes towards Sustainable Chemistry (CSC), Chile
| | - Bryan D Koivisto
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Karel Mena Ulecia
- Departamento de Ciencias Biológicas y Químicas, Facultad de Recursos Naturales, Universidad Católica de Temuco, Ave. Rudecindo Ortega 02950, Temuco, Chile
| | - Dayán Páez-Hernández
- Doctorado en Fisicoquímica Molecular, Center of Applied Nanosciences (CANS), Universidad Andres Bello, Ave. República #275, Santiago de Chile, Chile
| | - Ximena Zarate
- Instituto de Ciencias Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Santiago, Chile
| | - Eduardo Schott
- Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Centro de Energía UC, Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna, 4860, Santiago, Chile.
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3
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González D, Pazo-Carballo C, Camú E, Hidalgo-Rosa Y, Zarate X, Escalona N, Schott E. Adsorption properties of M-UiO-66 (M = Zr(IV); Hf(IV) or Ce(IV)) with BDC or PDC linker. Dalton Trans 2024; 53:10486-10498. [PMID: 38840533 DOI: 10.1039/d4dt00941j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
The increasing CO2 emissions and their direct impact on climate change due to the greenhouse effect are environmental issues that must be solved as soon as possible. Metal-organic frameworks (MOFs) are one class of crystalline adsorbent materials that are thought to have enormous potential in CO2 capture applications. In this research, the effect of changing the metal center between Zr(IV), Ce(IV), and Hf(IV), and the linker between BDC and PDC has been fully studied. Thus, the six UiO-66 isoreticular derivatives have been synthesized and characterized by FTIR, PXRD, TGA, and N2 adsorption. We also report the BET surface area, CO2 adsorption capacities, kinetics, and the adsorption isosteric heat (Qst) of the UiO-66 derivatives mentioned family. The CO2 adsorption kinetics were evaluated using pseudo-first order, pseudo-second order, Avrami's kinetic models, and the rate-limiting step with Boyd's film diffusion, interparticle diffusion, and intraparticle diffusion models. The isosteric heats of CO2 adsorption using various MOFs are in the range 20-65 kJ mol-1 observing differences in adsorption capacities between 1.15 and 4.72 mmol g-1 at different temperatures due to the electrostatic interactions between CO2 and extra-framework metal ions. The isosteric heat of adsorption calculation in this report, which accounts for the unexpectedly high heat released from Zr-UiO-66-PDC, is finally represented as an increase in the interaction of CO2 with the PDC linker and an increase in Qst with defects.
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Affiliation(s)
- Diego González
- Departamento de Química Inorgánica, Facultad de Química y Farmacia, Centro de Energía UC, Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna, 4860, Santiago, Chile.
| | - Cesar Pazo-Carballo
- Departamento de Química Inorgánica, Facultad de Química y Farmacia, Centro de Energía UC, Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna, 4860, Santiago, Chile.
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago, Chile
- Millennium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Chile
| | - Esteban Camú
- Departamento de Ingeniería Química y Bioprocesos, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago, Chile
- Millennium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Chile
| | - Yoan Hidalgo-Rosa
- Millennium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Chile
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile
| | - Ximena Zarate
- Instituto de Ciencias Aplicadas, Theoretical and Computational Chemistry Center, Facultad de Ingeniería, Universidad Autónoma de Chile, Av. Pedro de Valdivia 425, Santiago, Chile
| | - Néstor Escalona
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago, Chile
- Departamento de Ingeniería Química y Bioprocesos, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago, Chile
- Millennium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Chile
| | - Eduardo Schott
- Departamento de Química Inorgánica, Facultad de Química y Farmacia, Centro de Energía UC, Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna, 4860, Santiago, Chile.
- Millennium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Chile
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4
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Salazar J, Hidalgo-Rosa Y, Burboa PC, Wu YN, Escalona N, Leiva A, Zarate X, Schott E. UiO-66(Zr) as drug delivery system for non-steroidal anti-inflammatory drugs. J Control Release 2024; 370:392-404. [PMID: 38663750 DOI: 10.1016/j.jconrel.2024.04.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/16/2024] [Accepted: 04/22/2024] [Indexed: 05/07/2024]
Abstract
The toxicity for the human body of non-steroidal anti-inflammatory drugs (NSAIDs) overdoses is a consequence of their low water solubility, high doses, and facile accessibility to the population. New drug delivery systems (DDS) are necessary to overcome the bioavailability and toxicity related to NSAIDs. In this context, UiO-66(Zr) metal-organic framework (MOF) shows high porosity, stability, and load capacity, thus being a promising DDS. However, the adsorption and release capability for different NSAIDs is scarcely described. In this work, the biocompatible UiO-66(Zr) MOF was used to study the adsorption and release conditions of ibuprofen, naproxen, and diclofenac using a theoretical and experimental approximation. DFT results showed that the MOF-drug interaction was due to an intermolecular hydrogen bond between protons of the groups in the defect sites, (μ3 - OH, and - OH2) and a lone pair of oxygen carboxyl functional group of the NSAIDs. Also, the experimental results suggest that the solvent where the drug is dissolved affects the adsorption process. The adsorption kinetics are similar between the drugs, but the maximum load capacity differs for each drug. The release kinetics assay showed a solvent dependence kinetics whose maximum liberation capacity is affected by the interaction between the drug and the material. Finally, the biological assays show that none of the systems studied are cytotoxic for HMVEC. Additionally, the wound healing assay suggests that the UiO-66(Zr) material has potential application on the wound healing process. However, further studies should be done.
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Affiliation(s)
- Javier Salazar
- Departamento de Química Inorgánica, Facultad de Química y Farmacia, CIEN-UC, Centro de Energía UC, Pontificia Universidad Católica de Chile, Santiago 8320000, Chile
| | - Yoan Hidalgo-Rosa
- Departamento de Química Inorgánica, Facultad de Química y Farmacia, CIEN-UC, Centro de Energía UC, Pontificia Universidad Católica de Chile, Santiago 8320000, Chile; Facultad de Ingeniería, Universidad Finis Terrae, Av. Pedro de Valdivia 1509, Santiago 7500000, Chile
| | - Pia C Burboa
- Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, NJ, United States
| | - Yi-Nan Wu
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, China; Shanghai Institute of Pollution Control and Ecological Security, 1239 Siping Rd., Shanghai 200092, China
| | - Néstor Escalona
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Santiago 8320000, Chile; Departamento de Ingeniería Química y Bioprocesos, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Macul, Santiago 8320000, Chile; Millenium Nuclei on Catalytic Processes Towards Sustainable Chemistry (CSC), Chile
| | - Angel Leiva
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Santiago 8320000, Chile
| | - Ximena Zarate
- Instituto de Ciencias Aplicadas, Theoretical and Computational Chemistry Center, Facultad de Ingeniería, Universidad Autónoma de Chile, Santiago 8320000, Chile
| | - Eduardo Schott
- Departamento de Química Inorgánica, Facultad de Química y Farmacia, CIEN-UC, Centro de Energía UC, Pontificia Universidad Católica de Chile, Santiago 8320000, Chile; Millenium Nuclei on Catalytic Processes Towards Sustainable Chemistry (CSC), Chile.
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5
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Li W, Wu XF, Zhao Y. Mechanistic Insights into the Palladium-Catalyzed Perfluoroalkylative Carbonylation of Unactivated Alkenes to β-Perfluoroalkyl Esters: A DFT Study. J Phys Chem A 2024. [PMID: 38691449 DOI: 10.1021/acs.jpca.3c08287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Transition metal-catalyzed multicomponent carbonylation is an efficient synthetic strategy to access multifunctional esters in high yields with broad functional group tolerance and good chemoselectivity. Considering the development of highly efficient synthetic methods for esters, it remains significant to grasp the mechanism of constructing multifunctional esters. Herein, density functional theoretical calculations were carried out to acquire mechanistic insight into the synthesis of β-perfluoroalkyl esters from a specific palladium-catalyzed perfluoroalkylative carbonylation of unactivated alkenes using carbon monoxide. A detailed mechanistic understanding of this reaction route includes (1) multistep radical reaction process, (2) C-C coupling and CO insertion, (3) ligand exchange, and (4) Pd-based intermediate oxidation and reductive elimination. The multistep radical process was fundamentally rationalized, including Rf· formation and radicals A and E from unactivated alkene and CO oxidation, respectively. The potential energy calculation indicated that the CO insertion into the perfluorinated alkyl radicals preceded Pd-catalyzed oxidation in the competitively multistep free radical reaction process. In addition, the I-/PhO- exchange step was predicted to be spontaneous to products. The IGMH analysis further attested to the reductive elimination process involved in the rate-determining step. Thus, a simple and valid density functional theory (DFT) approach was developed to reveal the multistep radical mechanism for the Pd-catalyzed perfluoroalkylative carbonylation of unactivated alkenes to access functional β-perfluoroalkyl esters.
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Affiliation(s)
- Wenbo Li
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xiao-Feng Wu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
| | - Yanying Zhao
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
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6
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Herrmann B, Svatunek D. Directionality of Halogen-Bonds: Insights from 2D Energy Decomposition Analysis. Chem Asian J 2024:e202301106. [PMID: 38390759 DOI: 10.1002/asia.202301106] [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: 12/10/2023] [Revised: 01/25/2024] [Indexed: 02/24/2024]
Abstract
Halogen bonds are typically observed to have a linear arrangement with a 180° angle between the nucleophile and the halogen bond acceptor X-R. This linearity is commonly explained using the σ-hole model, although there have been alternative explanations involving exchange repulsion forces. We employ two-dimensional Distortion/Interaction and Energy Decomposition Analysis to examine the archetypal H3 N⋯X2 halogen bond systems. Our results indicate that although halogen bonds are predominantly electrostatic, their directionality is largely due to decreased Pauli repulsion in linear configurations as opposed to angled ones in the I2 and Br2 systems. As we move to the smaller halogens, Cl2 and F2 , the influence of Pauli repulsion diminishes, and the energy surface is shaped by orbital interactions and electrostatic forces. These results support the role of exchange repulsion forces in influencing the directionality of strong halogen bonds. Additionally, we demonstrate that the 2D Energy Decomposition Analysis is a useful tool for enhancing our understanding of the nature of potential energy surfaces in noncovalent interactions.
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Affiliation(s)
- Barbara Herrmann
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9, 1060, Vienna, Austria
| | - Dennis Svatunek
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9, 1060, Vienna, Austria
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7
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Gholami S, Aarabi M, Grabowski SJ. Theoretical Insights into Bifurcated Intramolecular Dihydrogen Bonds. Chemphyschem 2024; 25:e202300849. [PMID: 38061993 DOI: 10.1002/cphc.202300849] [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: 11/08/2023] [Revised: 12/05/2023] [Indexed: 01/11/2024]
Abstract
Two-ring intramolecular π-electron delocalization assisted dihydrogen bonds existing in (1Z,4Z)-1,4-dipentene-3-bora-1,5-diol and its symmetrically substituted derivatives have been analysed here since the MP2/6-311++G(d,p) calculations on these systems were performed. The influence of the coexistence of two intramolecular dihydrogen bonded rings in these molecular structures on properties of intramolecular dihydrogen bonds as well as on the π-electron delocalization within these rings was investigated. The comparison with corresponding structures of typical two-ring, so-called resonance-assisted, RAHB, systems was performed. The results of calculations show that such rings' coexistence leads to the weakening of dihydrogen bonds, similarly as for the typical two-ring RAHB systems. The Quantum Theory of ''Atoms in Molecules'' (QTAIM) was also applied here to get more details about the nature of dihydrogen bonds. Correlations between dihydrogen bond strength measures and other energetic, geometrical and topological parameters were also analysed. It was found that characteristics of bond critical points as well as of ring critical points are useful to estimate the strength of intramolecular dihydrogen bonds in two-ring dihydrogen bonded systems discussed here. The Natural Bond Orbital, NBO, approach parameters are also discussed as useful ones to describe properties of dihydrogen bonded systems.
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Affiliation(s)
- Samira Gholami
- Department of Chemistry, University of Isfahan, Isfahan, 81746-73441, Iran
| | - Mohammad Aarabi
- Department of Chemistry, University of Isfahan, Isfahan, 81746-73441, Iran
| | - Sławomir J Grabowski
- Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia, Kimika Fakultatea, Euskal Herriko Unibertsitatea UPV/EHU & Donostia International Physics Center (DIPC), PK 1072, 20080, Donostia, Spain
- Ikerbasque, Basque Foundation for Science, 48011, Bilbao, Spain
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8
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Turani-I-Belloto K, Chiriac R, Toche F, Petit E, Yot PG, Alauzun JG, Demirci UB. Synthesis: Molecular Structure, Thermal-Calorimetric and Computational Analyses, of Three New Amine Borane Adducts. Molecules 2023; 28:molecules28031469. [PMID: 36771135 PMCID: PMC9921861 DOI: 10.3390/molecules28031469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Cyclopropylamine borane C3H5NH2BH3 (C3AB), 2-ethyl-1-hexylamine borane CH3(CH2)3CH(C2H5)CH2NH2BH3 (C2C6AB) and didodecylamine borane (C12H25)2NHBH3 ((C12)2AB) are three new amine borane adducts (ABAs). They are synthesized by reaction of the corresponding amines with a borane complex, the reaction being exothermic as shown by Calvet calorimetry. The successful synthesis of each has been demonstrated by FTIR, Raman and NMR. For instance, the 11B NMR spectra show the presence of signals typical of the NBH3 environment, thereby implying the formation of B-N bonds. The occurrence of dihydrogen bonds (DHBs) for each of the ABAs has been highlighted by DSC and FTIR, and supported by DFT calculations (via the Mulliken charges for example). When heated, the three ABAs behave differently: C3AB and C2C6AB decompose from 68 to 100 °C whereas (C12)2AB is relatively stable up to 173 °C. That means that these ABAs are not appropriate as hydrogen carriers, but the 'most' stable (C12)2AB could open perspectives for the synthesis of advanced materials.
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Affiliation(s)
- Kevin Turani-I-Belloto
- Institut Europeen des Membranes, IEM–UMR 5635, ENSCM, CNRS, Universite de Montpellier, 34090 Montpellier, France
| | - Rodica Chiriac
- Laboratoire des Multimateriaux et Interfaces, UMR CNRS 5615, Université Claude Bernard Lyon 1, 69622 Villeurbanne, France
| | - François Toche
- Laboratoire des Multimateriaux et Interfaces, UMR CNRS 5615, Université Claude Bernard Lyon 1, 69622 Villeurbanne, France
| | - Eddy Petit
- Institut Europeen des Membranes, IEM–UMR 5635, ENSCM, CNRS, Universite de Montpellier, 34090 Montpellier, France
| | - Pascal G. Yot
- ICGM, Universite de Montpellier, CNRS, ENSCM, 34293 Montpellier, France
| | - Johan G. Alauzun
- ICGM, Universite de Montpellier, CNRS, ENSCM, 34293 Montpellier, France
| | - Umit B. Demirci
- Institut Europeen des Membranes, IEM–UMR 5635, ENSCM, CNRS, Universite de Montpellier, 34090 Montpellier, France
- Correspondence:
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9
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Zhang M, Zhu Q, Liu Q, Cheng L. The nature of stability and adsorption interactions of binary Au-Li clusters with bridge adsorption structures. Phys Chem Chem Phys 2023; 25:2265-2273. [PMID: 36597742 DOI: 10.1039/d2cp04716k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Earlier findings have confirmed that CO molecules have propensities to adsorb on low-coordinated gold atoms (top sites) of Au-based clusters, which can be treated by the Blyholder model wherein the σ donation and π-back donation take place. Here, the structural features and stability of (AuLi)n (n = 1-9) clusters were first analyzed using the GA-DFT method. The new adsorption modes, vibration frequencies and electronic interactions for Au-Li clusters with CO were investigated in detail. More excitingly, we found that CO prefers to adsorb on the bridge sites of the Au-Li clusters rather than on the top sites, which are much lower in energies than the top adsorptions, and the C-O stretching frequencies are also red-shifted. AIMD simulations show that the adsorption structures still have good thermal stability at 500 K. The density of states reveals that the electronic structures of Au-Li clusters have excellent stability for the bridge adsorptions of CO molecules. The ETS-NOCV analysis and NPA charges show that the direction of charge flow is from Au-Li clusters → CO. Our study provides an idea to elucidate the new adsorption mechanism on Au-Li clusters and the connection between the geometries and reaction properties.
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Affiliation(s)
- Manli Zhang
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan 232000, P. R. China.
| | - Qiyong Zhu
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan 232000, P. R. China.
| | - Qiman Liu
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan 232000, P. R. China.
| | - Longjiu Cheng
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Hefei 230000, P. R. China.
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10
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Kenouche S, Bachir N, Martínez-Araya JI. Explaining the High Catalytic Activity in Bis(indenyl)methyl Zirconium Cation Using Combined EDA-NOCV/QTAIM Approach. Chemphyschem 2023; 24:e202200488. [PMID: 36161688 DOI: 10.1002/cphc.202200488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/24/2022] [Indexed: 01/20/2023]
Abstract
The main purpose of this study is to elucidate some discrepancies already observed in the catalytic activity values of some zirconocene methyl cations. The EDA-NOCV scheme was employed for a theoretical description of the interactions between an ethylene molecule and five catalysts of zirconocene methyl cation. The nature of the chemical interactions has been elucidated through the QTAIM topological analysis. The steric hindrance due to the ligands was evaluated qualitatively by means of an IRI-based analysis and quantitively through Fisher information. The findings prove that the indenyl ligand seems to favor the orbital interaction between the ethylene molecule and the metal centre of zirconocene methyl cation. Both electrostatic and orbital contributions play a crucial role in stabilising the studied complexes. Based on the NOCV deformation density contributions, the strongest orbital interaction is reached with the bis(indenyl)methyl zirconium cation, which is the only one exhibiting covalent interactions. Especially, the strong contribution of π-back donation (occurring from the occupied orbitals of the zirconium atom to the π* anti-bonding orbital of ethylene) may be a key to understand why this catalyst has a higher polymerisation yield than the other studied catalysts. This work suggests a perspective for predicting values of catalytic activity when theoretically designing novel catalysts of zirconocene type.
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Affiliation(s)
- Samir Kenouche
- Group of Modeling of Chemical Systems using Quantum Calculations, Applied Chemistry Laboratory (LCA)., University of M. Khider of Biskra, BP 145 RP, 07000, Biskra, Algeria
| | - Nassima Bachir
- Group of Modeling of Chemical Systems using Quantum Calculations, Applied Chemistry Laboratory (LCA)., University of M. Khider of Biskra, BP 145 RP, 07000, Biskra, Algeria
| | - Jorge I Martínez-Araya
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello (UNAB), Av. República 275, 8370146, Santiago, Chile
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11
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Treto‐Suárez MA, Zarate X, Schott E. Structure and Electronic Properties of Metalloboranes with General Formula Cp*
3
(μ‐H)M
3
B
8
H
8
(M=Cr, Mo and W): The Effect of the Size of the Metal. ChemistrySelect 2022. [DOI: 10.1002/slct.202204009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Manuel A. Treto‐Suárez
- Instituto de Ciencias Químicas Aplicadas, Departamento de Física y Química, Facultad de Ingeniería Universidad Autónoma de Chile Av. Alemania 01090 4810101 – Temuco Chile
| | - Ximena Zarate
- Instituto de Ciencias Químicas Aplicadas, Facultad de Ingeniería Universidad Autónoma de Chile, postCode/> <8900000> Santiago Chile
| | - Eduardo Schott
- Departamento de Química Inorgánica, Facultad de Química y Farmacia, Centro de Energía UC, Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC Pontificia Universidad Católica de Chile Avenida Vicuña Mackenna 4860 Santiago Chile
- ANID-Millennium Science Initiative Program-Millennium Nuclei on Catalytic Process Towards Sustainable Chemistry (CSC) 7820436 Santiago Chile
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12
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Into the Role of Unsaturated Trinuclear Metal Carbonyls in the Formation of [M3(2,3-bpp)(CO)10] with M=Ru, Os: A DFT Stability Analysis and Electronic Structure. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02389-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Chong D, Wang F. Dehydrogenation of Ammonia Borane Impacts Valence and Core Electrons: A Photoemission Spectroscopic Study. ACS OMEGA 2022; 7:35924-35932. [PMID: 36249405 PMCID: PMC9558250 DOI: 10.1021/acsomega.2c04632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/24/2022] [Indexed: 06/16/2023]
Abstract
Ammonia borane (H3BNH3) is a promising material for hydrogen storage and release. Dehydrogenation of ammonia borane produces small boron-nitrogen hydrides such as aminoborane (H2BNH2) and iminoborane (HBNH). The present study investigates ammonia borane and its two dehydrogenated products for the first time using calculated photoemission spectra of the valence and core electrons. It is found that a significant decrease in the dipole moment was observed associated with the dehydration from 5.397 D in H3BNH3, to 1.942 D in H2BNH2, and to 0.083 D in HBNH. Such reduction in the dipole moment impacts properties such as hydrogen bonding, dihydrogen bonding, and their spectra. Dehydrogenation of H3BNH3 impacts both the valence and core electronic structure of the boron-nitrogen hydrides. The calculated valence vertical ionization energy (VIE) spectra of the boron-nitrogen hydrides show that valence orbitals dominated by 2p-electrons of B and N atoms exhibit large changes, whereas orbitals dominated by s-electrons, such as (3a14a15a1/3σ4σ5σ) remain less affected. The first ionization energy slightly increases from 10.57 eV for H3BNH3 to 11.29 eV for both unsaturated H2BNH2 and HBNH. In core space, the oxidative dehydrogenation of H3BNH3 affects the core electron binding energy (CEBE) of borane and nitrogen oppositely. The B1s binding energies increase from 194.01 eV in H3BNH3 to 196.93 eV in HBNH, up by 2.92 eV, whereas the N1s binding energies decrease from 408.20 eV in H3BNH3 to 404.88 eV in HBNH, dropped by 3.32 eV.
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Affiliation(s)
- Delano
P. Chong
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Feng Wang
- Department
of Chemistry and Biotechnology, School of Science, Computing and Engineering
Technologies, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
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14
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Soft X-ray Absorption/Emission Spectroscopy and Atomic Hydrogen Irradiation Effect of Ammonia Borane. E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY 2022. [DOI: 10.1380/ejssnt.2022-042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Treto-Suárez MA, Schott E, Mena Ulecia K, Koivisto BD, Hidalgo-Rosa Y, Páez-Hernández D, Zarate X. Understanding the Deactivating/Activating Mechanisms in Three Optical Chemosensors Based in Crown Ether with Na+/K+ Selectivity Using Quantum Chemical Tools. Chemphyschem 2022; 23:e202200188. [DOI: 10.1002/cphc.202200188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/01/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Manuel A. Treto-Suárez
- Pontificia Universidad Católica de Chile: Pontificia Universidad Catolica de Chile Departamento de Química Inorgánica CHILE
| | - Eduardo Schott
- Pontificia Universidad Católica de Chile: Pontificia Universidad Catolica de Chile Departamento de Química Inorgánica CHILE
| | - Karel Mena Ulecia
- Temuco Catholic University: Universidad Catolica de Temuco cDepartamento de Ciencias Biológicas Y Químicas CHILE
| | | | - Yoan Hidalgo-Rosa
- Pontificia Universidad Católica de Chile: Pontificia Universidad Catolica de Chile Departamento de Química Inorgánica, Facultad de Química y de Farmacia CHILE
| | | | - Ximena Zarate
- Universidad Autónoma de Chile - Campus El Llano Subercaseaux: Universidad Autonoma de Chile - Campus El Llano Subercaseaux hInstituto de Ciencias Químicas Aplicadas CHILE
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16
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Liu Q, Zhang M, Zhang D, Hu Y, Zhu Q, Cheng L. Adsorption properties of pyramidal superatomic molecules based on the structural framework of the Au 20 cluster. Phys Chem Chem Phys 2022; 24:12410-12418. [PMID: 35574969 DOI: 10.1039/d2cp01552h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pyramidal Au20 cluster is a highly inert and stable superatomic molecule, but it is not suitable as a potential catalyst for covalent bond activations, e.g., CO oxidation reaction. Herein, the adsorption and electronic properties of CO molecules on various pyramidal clusters based on the structural framework of Au20 are investigated using density functional theory. According to the SVB model, we constructed isoelectronic superatomic molecules with different pyramid configurations by replacing the vertex atoms of the Au20 using metal M atoms (M = Li, Be, Ni, Cu, and Zn group atoms). After the CO molecules are adsorbed on the vertex atoms of these metal clusters, we analyzed the CO adsorption energies, C-O bond stretching frequencies, and electronic properties of the adsorption structures. It was found that the adsorption of CO molecules results in minimal changes in the parent geometries of the pyramidal clusters, and most adsorption structures are consistent with the geometry of CO adsorption at the vertex site of the Au20 cluster. There are significant red shifts when CO molecules are adsorbed on the Ni/Pd/Pt atoms of the clusters, and their CO adsorption energies were also greater. The molecular orbitals and density of states reveal that there are overlaps between the frontier orbitals of the clusters and CO, and the electronic structure of NiAu19- is not sensitive to CO. The ETS-NOCV analysis shows that the increase in the density of the bonding area caused by the orbital interactions between the fragments is higher than the decrease in the density of the bonding area caused by Pauli repulsion, presenting that the direction of charge flow in the deformation density is from CO → clusters. From energy decomposition analysis (EDA) and NPA charge, we find a predominant covalent nature of the contributions in CO⋯M interactions (σ-donation). Our study indicates that the SVB model provides a new direction to expand the superatomic catalysts from the superatom clusters, which also provides inference for the extension of the single atom catalysis.
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Affiliation(s)
- Qiman Liu
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan, 232038, P. R. China. .,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, 230601, P. R. China.
| | - Manli Zhang
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan, 232038, P. R. China.
| | - Dawen Zhang
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan, 232038, P. R. China.
| | - Yunhu Hu
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan, 232038, P. R. China.
| | - Qiyong Zhu
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan, 232038, P. R. China.
| | - Longjiu Cheng
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, 230601, P. R. China.
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17
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Mondal H, Patra SG, Chattaraj PK. Small molecule activation and dehydrogenation of an amine–borane system using frustrated Lewis pairs. Struct Chem 2022. [DOI: 10.1007/s11224-022-01934-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Multitask Quantum Study of the Curcumin-Based Complex Physicochemical and Biological Properties. Int J Mol Sci 2022; 23:ijms23052832. [PMID: 35269972 PMCID: PMC8910981 DOI: 10.3390/ijms23052832] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/14/2022] [Accepted: 01/29/2022] [Indexed: 11/17/2022] Open
Abstract
Density functional theory (DFT), time-dependent density functional theory (TDDFT), quantum theory of atoms in molecules (QTAIM), and extended transition state natural orbitals for chemical valence (ETS-NOCV) have all been used to investigate the physicochemical and biological properties of curcumin and three complexes, i.e., Cur-M (M = Ni, Cu, and Mg). Based on DFT calculations, the enolic form (Cur-Enol) is more stable than the anti-diketone form (Cur-Anti diketone) favored for complexation. This enolic form stability was explained by the presence of three intramolecular hydrogen bonds according to the QTAIM analysis. Furthermore, the ETS-NOCV technique revealed that the enolic form had more significant antioxidant activity compared with the anti-diketone form. The calculations from the COnductor-like Screening MOdel for Realistic Solvents (COSMO-RS) showed that the dimethyl sulfoxide (DMSO) solvent could dissolve all the curcumin tautomers Cur-Enol, Cur-Anti-diketone and Cur-Cu, Cur-Mg, and Cur-Ni complexes in contrast to benzene, acetone, octanol, ethanol, methanol, and water. Furthermore, except for Cur-Mg, which had a relatively low solubility (14 g/L), all complexes were insoluble in water. Cur-Anti-diketone was considerably more soluble than Cur-Enol in the examined solvents.
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19
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Patra SG, Jha R, Mondal H, Chattaraj PK. Fischer and Schrock carbene complexes in the light of global and local electrophilicity‐based descriptors. J PHYS ORG CHEM 2022. [DOI: 10.1002/poc.4337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Ruchi Jha
- Advanced Technology Development Centre Indian Institute of Technology Kharagpur India
| | - Himangshu Mondal
- Department of Chemistry Indian Institute of Technology Kharagpur India
| | - Pratim Kumar Chattaraj
- Department of Chemistry Indian Institute of Technology Kharagpur India
- Department of Chemistry Indian Institute of Technology Mumbai India
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20
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López-Espejel M, Gómez-Treviño A, Muñoz-Flores BM, Treto-Suarez MA, Schott E, Páez-Hernández D, Zarate X, Jiménez-Pérez VM. Organotin Schiff bases as halofluorochromic dyes: green synthesis, chemio-photophysical characterization, DFT, and their fluorescent bioimaging in vitro. J Mater Chem B 2021; 9:7698-7712. [PMID: 34586143 DOI: 10.1039/d1tb01405f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Fluorescent bioimaging is an excellent tool in cellular biology, and it will be a powerful technique in modern medicine as a noninvasive imaging technology where tumoral and normal cells must be distinguished. One of the differences between normal and cancer cells is the intracellular pH. Therefore, the design and synthesis of pH-responsive fluorescent materials are required. Organotin Schiff bases showed halofluorochromic behavior in solution. Microwave-assisted synthesis showed better reaction times and chemical yields compared with conventional heating. All compounds were fully characterized by spectroscopic and spectrometric techniques. The halofluorochromism study showed that some molecules in acidic media have the maximum luminescence intensity due to protonation. All the fluorescent tin complexes showed cell staining on hepatocyte and MCF-7 cells by confocal microscopy. The theoretical study has enabled us to rationalize the optical properties and the halofluorochromism for compounds 1 and 2 synthesized in this work. Our results showed that the emission decrease, in the acid and basic media for compounds 1 and 2, respectively, is caused by intramolecular charge transfer (ICT) deactivation.
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Affiliation(s)
- Margarita López-Espejel
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria, Av. Universidad s/n, C.P. 66451, Nuevo León, Mexico.
| | - Alberto Gómez-Treviño
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria, Av. Universidad s/n, C.P. 66451, Nuevo León, Mexico.
| | - Blanca M Muñoz-Flores
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria, Av. Universidad s/n, C.P. 66451, Nuevo León, Mexico.
| | - Manuel A Treto-Suarez
- Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Centro de Energía UC, Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna, 4860, Santiago, Chile.,ANID-Millennium Science Initiative Program-Millennium Nuclei on Catalytic Process Towards Sustainable Chemistry (CSC), Chile
| | - Eduardo Schott
- Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Centro de Energía UC, Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna, 4860, Santiago, Chile.,ANID-Millennium Science Initiative Program-Millennium Nuclei on Catalytic Process Towards Sustainable Chemistry (CSC), Chile
| | - Dayán Páez-Hernández
- Doctorado en Fisicoquímica Molecular, Universidad Andres Bello, Ave. República #275, Santiago de Chile, Chile.,Center of Applied Nanosciences (CANS), Chile República #275, Santiago de Chile, Chile
| | - Ximena Zarate
- Instituto de Ciencias Químicas Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Santiago, Chile.
| | - Víctor M Jiménez-Pérez
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria, Av. Universidad s/n, C.P. 66451, Nuevo León, Mexico.
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21
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Mondal H, Ghara M, Chattaraj PK. A computational investigation of the activation of allene (H2C = C = CHR; R = H, CH3, CN) by a frustrated phosphorous/boron Lewis pair. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138623] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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22
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Pino‐Rios R, Inostroza D, Tiznado W. Neither too Classic nor too Exotic: One‐Electron Na⋅B Bond in NaBH
3
−
Cluster. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ricardo Pino‐Rios
- Laboratorio de Química teórica Facultad de Química y Biología Universidad de Santiago de Chile (USACH) Av. Libertador Bernardo O'Higgins 3363 Santiago, Estación Central, Región Metropolitana Chile
| | - Diego Inostroza
- Universidad Andres Bello Programa de Doctorado en Fisicoquímica Molecular Facultad de Ciencias Exactas Santiago Chile
- Computational and Theoretical Chemistry Group Departamento de Ciencias Químicas Facultad de Ciencias Exactas Universidad Andres Bello República 498 Santiago Chile
| | - William Tiznado
- Universidad Andres Bello Programa de Doctorado en Fisicoquímica Molecular Facultad de Ciencias Exactas Santiago Chile
- Computational and Theoretical Chemistry Group Departamento de Ciencias Químicas Facultad de Ciencias Exactas Universidad Andres Bello República 498 Santiago Chile
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23
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Pino-Rios R, Inostroza D, Tiznado W. Neither too Classic nor too Exotic: One-Electron Na⋅B Bond in NaBH 3 - Cluster. Angew Chem Int Ed Engl 2021; 60:12747-12753. [PMID: 33876517 DOI: 10.1002/anie.202101403] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Indexed: 12/17/2022]
Abstract
It is here reported that the NaBH3 - cluster exhibits a Na⋅B one-electron bond, a well-established type of electron-deficient bonding in the literature. The topological analysis of the electron localization function, at the correlated level, reveals that Na- , when approaching the bonding distance, fairly distributes its valence electron pair between two lobes. One of these electrons is used to bond with BH3 , which participates through its boron empty p-orbital. Furthermore, the bonding situation of LiBH3 - , KBH3 - , MgBH3 , and CaBH3 global minima structures are similar to that of NaBH3 - , extending the family of these new one-electron bond systems with biradicaloid character.
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Affiliation(s)
- Ricardo Pino-Rios
- Laboratorio de Química teórica, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Av. Libertador Bernardo O'Higgins 3363, Santiago, Estación Central, Región Metropolitana, Chile
| | - Diego Inostroza
- Universidad Andres Bello, Programa de Doctorado en Fisicoquímica Molecular, Facultad de Ciencias Exactas, Santiago, Chile.,Computational and Theoretical Chemistry Group, Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, República 498, Santiago, Chile
| | - William Tiznado
- Universidad Andres Bello, Programa de Doctorado en Fisicoquímica Molecular, Facultad de Ciencias Exactas, Santiago, Chile.,Computational and Theoretical Chemistry Group, Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, República 498, Santiago, Chile
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24
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Treto-Suárez MA, Tapia J, Hidalgo-Rosa Y, Páez-Hernández D, Molins E, Zarate X, Schott E. New Sensitive and Selective Chemical Sensors for Ni 2+ and Cu 2+ Ions: Insights into the Sensing Mechanism through DFT Methods. J Phys Chem A 2020; 124:6493-6503. [PMID: 32635732 DOI: 10.1021/acs.jpca.0c03834] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the synthesis and theoretical study of two new colorimetric chemosensors with special selectivity and sensitivity to Ni2+ and Cu2+ ions over other metal cations in the CH3CN/H2O solution. Compounds (E)-4-((2-nitrophenyl)diazenyl)-N,N-bis(pyridin-2-ylmethyl)aniline (A) and (E)-4-((3-nitrophenyl)diazenyl)-N,N-bis(pyridin-2-ylmethyl)aniline (B) exhibited a drastic color change from yellow to colorless, which allows the detection of the mentioned metal cations through different techniques. The interaction of sensors with these metal ions induced a new absorption band with a hypsochromic shift to the characteristic signal of the free sensors. A theoretical study via time-dependent density functional theory (TD-DFT) was performed. This method has enabled us to reproduce the hypsochromic shift in the maximum UV-vis absorption band and explain the selective sensing of the ions. For all of the systems studied, the absorption band is characterized by a π → π* transition centered in the ligand. Instead of Ni2+ and Cu2+ ions, the transition is set toward the σ* molecular orbital with a strong contribution of the 3dx2-y2 transition (π → 3dx2-y2). These absorptions imply a ligand-to-metal charge transfer (LMCT) mechanism that results in the hypsochromic shift in the absorption band of these systems.
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Affiliation(s)
- Manuel A Treto-Suárez
- Doctorado en Fisicoquímica Molecular, Universidad Andres Bello, Ave. República #275, 8320000, Santiago de Chile, Chile
| | - Jorge Tapia
- Universidad Bernardo OHiggins, Facultad de Salud, Departamento de Ciencias Quı́micas y Biológicas, General Gana 1702, Santiago, Chile.,Millennium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Santiago, Chile
| | - Yoan Hidalgo-Rosa
- Doctorado en Fisicoquímica Molecular, Universidad Andres Bello, Ave. República #275, 8320000, Santiago de Chile, Chile.,Millennium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Santiago, Chile
| | - Dayan Páez-Hernández
- Doctorado en Fisicoquímica Molecular, Universidad Andres Bello, Ave. República #275, 8320000, Santiago de Chile, Chile.,Center of Applied Nanosciences (CANS), Chile República #275, 8320000, Santiago de Chile, Chile
| | - Elies Molins
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
| | - Ximena Zarate
- Instituto de Ciencias Químicas Aplicadas, Theoretical and Computational Chemistry Center, Facultad de Ingeniería, Universidad Autónoma de Chile, Av. Pedro de Valdivia 425, 7500912, Santiago, Chile
| | - Eduardo Schott
- Departamento de Química Inorgánica, Facultad de Quı́mica y Farmacia, Centro de Energı́a UC, Centro de Investigación en Nanotecnologı́a y Materiales Avanzados CIEN-UC, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna, 4860, 7820244, Santiago, Chile.,Millennium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Santiago, Chile
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25
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Belpassi L, De Santis M, Quiney HM, Tarantelli F, Storchi L. BERTHA: Implementation of a four-component Dirac–Kohn–Sham relativistic framework. J Chem Phys 2020; 152:164118. [PMID: 32357778 DOI: 10.1063/5.0002831] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Leonardo Belpassi
- Istituto di Scienze e Tecnologie Chimiche (SCITEC), 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
| | - Matteo De Santis
- 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
| | - Francesco Tarantelli
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Loriano Storchi
- Dipartimento di Farmacia, Università degli Studi ‘G. D’Annunzio’, Via dei Vestini 31, 66100 Chieti, Italy
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26
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Berrones-Reyes JC, Muñoz-Flores BM, Cantón-Diáz AM, Treto-Suárez MA, Páez-Hernández D, Schott E, Zarate X, Jiménez-Pérez VM. Quantum chemical elucidation of the turn-on luminescence mechanism in two new Schiff bases as selective chemosensors of Zn 2+: synthesis, theory and bioimaging applications. RSC Adv 2019; 9:30778-30789. [PMID: 35529385 PMCID: PMC9072448 DOI: 10.1039/c9ra05010h] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 11/04/2019] [Accepted: 08/21/2019] [Indexed: 12/17/2022] Open
Abstract
We report the synthesis and characterization of two new selective zinc sensors (S,E)-11-amino-8-((2,4-di-tert-butyl-1-hydroxybenzylidene) amino)-11-oxopentanoic acid (A) and (S,E)-11-amino-8-((8-hydroxybenzylidene)amino)-11-oxopentanoic acid (B) based on a Schiff base and an amino acid. The fluorescent probes, after binding to Zn2+ ions, presented an enhancement in fluorescent emission intensity up to 30 times (ϕ = A 50.10 and B 18.14%). The estimated LOD for compounds A and B was 1.17 and 1.20 μM respectively (mixture of acetonitrile : water 1 : 1). Theoretical research has enabled us to rationalize the behaviours of the two selective sensors to Zn2+ synthesized in this work. Our results showed that in the free sensors, PET and ESIPT are responsible for the quenching of the luminescence and that the turn-on of luminescence upon coordination to Zn2+ is mainly induced by the elimination of the PET, which is deeply analysed through EDA, NOCV, molecular structures, excited states and electronic transitions via TD-DFT computations. Confocal fluorescence microscopy experiments demonstrate that compound A could be used as a fluorescent probe for Zn2+ in living cells.
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Affiliation(s)
- Jessica C Berrones-Reyes
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria 66451 Nuevo León México
| | - Blanca M Muñoz-Flores
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria 66451 Nuevo León México
| | - Arelly M Cantón-Diáz
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria 66451 Nuevo León México
| | - Manuel A Treto-Suárez
- Doctorado en Fisicoquímica Molecular, Center of Applied Nanosciences (CENS), Universidad Andres Bello Ave. República #275 Santiago de Chile Chile
| | - Dayan Páez-Hernández
- Doctorado en Fisicoquímica Molecular, Center of Applied Nanosciences (CENS), Universidad Andres Bello Ave. República #275 Santiago de Chile Chile
| | - Eduardo Schott
- Departamento de Química Inorgánica, UC Energy Research Center, Facultad de Química de Farmacia, Pontificia Universidad Católica de Chile Avenida Vicuña Mackenna, 4860 Macul Santiago Chile
- Millennium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC) Chile
| | - Ximena Zarate
- Instituto de Ciencias Químicas Aplicadas, Theoretical and Computational Chemistry Center, Facultad de Ingeniería, Universidad Autónoma de Chile Av. Pedro de Valdivia 425 Santiago Chile
| | - Víctor M Jiménez-Pérez
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria 66451 Nuevo León México
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Treto-Suárez MA, Hidalgo-Rosa Y, Schott E, Zarate X, Páez-Hernández D. Understanding the Selective-Sensing Mechanism of Al3+ Cation by a Chemical Sensor Based on Schiff Base: A Theoretical Approach. J Phys Chem A 2019; 123:6970-6977. [DOI: 10.1021/acs.jpca.9b03366] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Eduardo Schott
- Departamento de química inorgánica, UC Energy Research Center, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
- Millennium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Santiago 7810000, Chile
| | - Ximena Zarate
- Instituto de Ciencias Químicas Aplicadas, Theoretical and Computational Chemistry Center, Facultad de Ingeniería, Universidad Autónoma de Chile, Av. Pedro de Valdivia 425, Santiago 7500912, Chile
- Millennium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Santiago 7810000, Chile
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Abstract
Recent studies on boron carbonyl complexes show their intriguing structural and bonding properties, enriching our knowledge on main group coordination chemistry. The isolobal relationships between BCO and CH and the more generally applicable CO/H- and B-/C analogies are employed to understand the structure and bonding of boron carbonyl complexes, bridging the boron carbonyl chemistry to the well-known hydrocarbon analogues.
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Affiliation(s)
- Jiaye Jin
- Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China.
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29
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Mitoraj MP, Sagan F, Babashkina MG, Isaev AY, Chichigina YM, Safin DA. N
-Thiophosphorylthioureas RNHC(S)NHP(S)(Oi
Pr)2
as an Excellent Platform for Studying the Synergy between Hydrogen-Hydrogen Bonding and Other Families of Non-Covalent Interactions. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Mariusz P. Mitoraj
- Department of Theoretical Chemistry; Faculty of Chemistry; Jagiellonian University; Gronostajowa 2 30-387 Cracow Poland
| | - Filip Sagan
- Department of Theoretical Chemistry; Faculty of Chemistry; Jagiellonian University; Gronostajowa 2 30-387 Cracow Poland
| | - Maria G. Babashkina
- Institute of Condensed Matter and Nanosciences; Université catholique de Louvain; Place L. Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Alexey Y. Isaev
- Institute of Chemistry; University of Tyumen; Perekopskaya Str. 15a 625003 Tyumen Russian Federation
| | - Yana M. Chichigina
- Institute of Chemistry; University of Tyumen; Perekopskaya Str. 15a 625003 Tyumen Russian Federation
| | - Damir A. Safin
- Institute of Condensed Matter and Nanosciences; Université catholique de Louvain; Place L. Pasteur 1 1348 Louvain-la-Neuve Belgium
- Institute of Chemistry; University of Tyumen; Perekopskaya Str. 15a 625003 Tyumen Russian Federation
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30
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Pecher L, Tonner R. Deriving bonding concepts for molecules, surfaces, and solids with energy decomposition analysis for extended systems. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2018. [DOI: 10.1002/wcms.1401] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lisa Pecher
- Fachbereich Chemie Philipps‐Universität Marburg Marburg Germany
| | - Ralf Tonner
- Fachbereich Chemie and Material Sciences Center Philipps‐Universität Marburg Marburg Germany
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31
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Bhattacharjee R, Datta A. Understanding Thermal and Photochemical Aryl-Aryl Cross-Coupling by the AuI
/AuIII
Redox Couple. Chemistry 2018; 24:13636-13646. [PMID: 29979474 DOI: 10.1002/chem.201802634] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/25/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Rameswar Bhattacharjee
- Department of Spectroscopy; Indian Association for the, Cultivation of Science; Jadavpur 700032 West Bengal India
| | - Ayan Datta
- Department of Spectroscopy; Indian Association for the, Cultivation of Science; Jadavpur 700032 West Bengal India
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32
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Jahiruddin S, Mandal N, Datta A. Structure and Electronic Properties of Unnatural Base Pairs: The Role of Dispersion Interactions. Chemphyschem 2017; 19:67-74. [PMID: 29139595 DOI: 10.1002/cphc.201700997] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Indexed: 12/18/2022]
Abstract
Recent reports of the successful incorporation of unnatural base pairs (UBPs), such as d5SICS-dNaM, in the gene sequence and replication with DNA is an important milestone in synthetic biology. Followed by this, several other UBPs, such as dTPT3-dNaM, dTPT3-dFIMO, dTPT3-IMO, dTPT3-FEMO, FTPT3-NaM, FTPT3-FIMO, FTPT3-IMO, and FTPT3-FEMO, have demonstrated similar or better retention and fidelity inside cells. Of these base pairs, dNaM-dTPT3 has been optimized to be a better fit inside a pAIO plasmid. Based on both implicit and explicit dispersion-corrected density functional theory (DFT) calculations, we show that although this set of UBPs is significantly diverse in elemental and structural configuration, the members do share a common trait of favoring a slipped parallel stacked dimer arrangement. Unlike the natural bases (A, T, G, C, and U), this set of UBPs has a negligible affinity for a Watson-Crick (WC)-type planar structure because they are invariably more stable within slipped parallel stacked orientations. We also observed that all the UBPs have either similar or higher binding energies with the natural bases in similar stacked orientations. When arranged between two natural base pairs, the UBPs exhibited a binding energy similar to that of three-base sequences of natural bases. Our computational data show that the most promising base pairs are 5SICS-NaM, TPT3-NaM, and TPT3-FEMO. These results are consistent with recent progress on experimental research into UBPs along with our previous calculations on the d5SICS-dNaM pair and, therefore, strengthen the hypothesis that hydrogen bonding might not be absolutely essential and that interbase stacking dispersion interactions play a key role in the stabilization of genetic materials.
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Affiliation(s)
- Sk Jahiruddin
- Department of Physics, Sister Nibedita Government General Degree College for Girls, 20B Judges Court Road, Hastings House, Kolkata, 700027, West Bengal, India
| | - Nilangshu Mandal
- Department of Spectroscopy, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, West Bengal, India
| | - Ayan Datta
- Department of Spectroscopy, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, West Bengal, India
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33
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Menacer R, May A, Belkhiri L, Mousser A. Electronic structure and bonding of the dinuclear metal M 2(CO) 10 decacarbonyls: applications of natural orbitals for chemical valence. J Mol Model 2017; 23:358. [PMID: 29185066 DOI: 10.1007/s00894-017-3523-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 11/06/2017] [Indexed: 10/18/2022]
Abstract
The nature of the chemical metal-metal bond in M2(CO)10 (M = Mn, Re, Tc) dinuclear decacarbonyls complexes was investigated for the first time using the natural orbital chemical valence (NOCV) approach combined with the extended transition state (ETS) for energy decomposition analysis (EDA). The optimized geometries carried out at different levels of theory BP86, BLYP, BLYPD and BP86D, showed that the latter method, i.e., BP86D, led to the best agreement with X-ray experimental measurements. The BP86D/TZP results revealed that the computed covalent contribution to the metal-metal bond are 60.5%, 54.1% and 52.0% for Mn-Mn, Re-Re and Tc-Tc, respectively. The computed total interaction energies resulting from attractive terms (ΔE orb and ΔE eles), correspond well to experimental predictions, based on bond lengths and energy interaction analysis for the studied complexes.
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Affiliation(s)
- Rafik Menacer
- Laboratoire de Physicochimie Analytique et Cristallochimie des Matériaux Organométalliques et Biomoléculaires LPACMOB, Département de Chimie, Université Frères Mentouri, 25017, Constantine, Algeria.,Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques CRAPC, BP 384, Zone Industrielle, Bou-ismail, Tipaza, RP 42004, Algeria
| | - Abdelghani May
- Département de Chimie, Université Frères Mentouri, Route de Ain El Bey, 25017, Constantine, Algeria
| | - Lotfi Belkhiri
- URCHEMS, Département de Chimie, Université Frères Mentouri, Route de Ain El Bey, 25017, Constantine, Algeria.
| | - Abdelhamid Mousser
- Laboratoire de Physicochimie Analytique et Cristallochimie des Matériaux Organométalliques et Biomoléculaires LPACMOB, Département de Chimie, Université Frères Mentouri, 25017, Constantine, Algeria
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Arokiyanathan AL, Lakshmipathi S. Molecular properties of metal difluorides and their interactions with CO 2 and H 2O molecules: a DFT investigation. J Mol Model 2017; 23:345. [PMID: 29150809 DOI: 10.1007/s00894-017-3511-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 10/24/2017] [Indexed: 12/01/2022]
Abstract
A computational study of metal difluorides (MF2; M = Ca to Zn) and their interactions with carbon dioxide and water molecules was performed. The structural parameter values obtained and the results of AIM analysis and energy decomposition analysis indicated that the Ca-F bond is weaker and less ionic than the bonds in the transition metal difluorides. A deformation density plot revealed the stablizing influence of the Jahn-Teller effect in nonlinear MF2 molecules (e.g., where M= Sc, Ti, Cr). An anaysis of the metal K-edge peaks of the difluorides showed that shifts in the edge energy were due to the combined effects of the ionicity, effective nuclear charge, and the spin state of the metal. The interactions of CO2 with ScF2 (Scc3 geometry) and TiF2 (Tic2 geometry) caused CO2 to shift from its usual linear geometry to a bent geometry (η2(C=O) binding mode), while it retained its linear geometry (η1(O) binding mode) when it interacted with the other metal difluorides. Energy decomposition analysis showed that, among the various geometries considered, the Scc3 and Tic2 geometries possessed the highest interaction energies and orbital interaction energies. Heavier transition metal difluorides showed stronger affinities for H2O, whereas the lighter transition metal (Sc and Ti) difluorides preferred CO2. Overall, the results of this study suggest that fluorides of lighter transition metals with partially filled d orbitals (e.g., Sc and Ti) could be used for CO2 capture under moist conditions. Graphical abstract Interaction of metal difluorides with carbon dioxide and water.
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35
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Dreux KM, McNamara LE, Kelly JT, Wright AM, Hammer NI, Tschumper GS. Probing Dative and Dihydrogen Bonding in Ammonia Borane with Electronic Structure Computations and Raman under Nitrogen Spectroscopy. J Phys Chem A 2017; 121:5884-5893. [PMID: 28696687 DOI: 10.1021/acs.jpca.7b03509] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Although ammonia borane is isoelectronic with ethane and they have similar structures, BH3NH3 exhibits rather atypical bonding compared to that in CH3CH3. The central bond in ammonia borane is actually a coordinate covalent or dative bond rather than the conventional covalent C-C bond in ethane where each atom donates one electron. In addition, strong intermolecular dihydrogen bonds can form between two or more ammonia borane molecules compared to the relatively weak dispersion forces between ethane molecules. As a result, ammonia borane's physical properties are very sensitive to the environment. For example, gas-phase and solid-state ammonia borane have very different BN bond lengths and BN stretching frequencies, which led to much debate in the literature. It has been demonstrated that the use of cluster models based on experimental crystal structures led to better agreement between theory and experiment. Here, we employ a variety of cluster models to track how the interaction energies, bond lengths, and vibrational normal modes evolve with the size and structural characteristics of the clusters. The M06-2X/6-311++G(2df,2pd) level of theory was selected for this analysis on the basis of favorable comparison with CCSD(T)/aug-cc-pVTZ data for the ammonia borane monomer and dimer. Fourteen unique fully optimized molecular cluster geometries, (BH3NH3)n≤12, and nine crystal models, (BH3NH3)n≤19, were used to elucidate how the local environment impacts ammonia borane's physical properties. Computational results for the BN stretching frequencies are also compared directly to the Raman spectrum of solid ammonia borane at 77 K using Raman under liquid nitrogen spectroscopy (RUNS). A strong linear correlation was found to exist between the BN bond length and stretching frequency, from an isolated monomer to the most distorted BH3NH3 unit in a cluster or crystal structure model. Excellent agreement was seen between the frequencies computed for the largest crystal model and the RUNS experimental spectra (typically within a few wavenumbers).
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Affiliation(s)
- Katelyn M Dreux
- Department of Chemistry and Biochemistry, University of Mississippi, University , Mississippi 38677-1848, United States
| | - Louis E McNamara
- Department of Chemistry and Biochemistry, University of Mississippi, University , Mississippi 38677-1848, United States
| | - John T Kelly
- Department of Chemistry and Biochemistry, University of Mississippi, University , Mississippi 38677-1848, United States
| | - Ashley M Wright
- Department of Chemistry and Biochemistry, University of Mississippi, University , Mississippi 38677-1848, United States
| | - Nathan I Hammer
- Department of Chemistry and Biochemistry, University of Mississippi, University , Mississippi 38677-1848, United States
| | - Gregory S Tschumper
- Department of Chemistry and Biochemistry, University of Mississippi, University , Mississippi 38677-1848, United States
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36
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Vijayalakshmi KP, Suresh CH. Ammonia Borane Clusters: Energetics of Dihydrogen Bonding, Cooperativity, and the Role of Electrostatics. J Phys Chem A 2017; 121:2704-2714. [DOI: 10.1021/acs.jpca.7b01527] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kunduchi P. Vijayalakshmi
- Analytical and Spectroscopy
Division, Analytical, Spectroscopy and Ceramics Group, Propellants,
Polymers, Chemicals and Materials Entity, Vikram Sarabhai Space Centre, Thiruvananthapuram- 695022, India
| | - Cherumuttathu H. Suresh
- Chemical Sciences and Technology Division, CSIR- National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, 695 019, India
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37
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Priya AM, Lakshmipathi S. Atmospheric fate of diketones and OH radical–kinetics, reaction force, ETS-NOCV analysis. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1290840] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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39
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Mandal N, Pratik SM, Datta A. Exploring Ultrashort Hydrogen-Hydrogen Nonbonded Contacts in Constrained Molecular Cavities. J Phys Chem B 2017; 121:825-834. [PMID: 28055206 DOI: 10.1021/acs.jpcb.6b12391] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Confined molecular chambers such as macrocycle bridged E1-H···H-E2 (E1(E2) = Si(Si), 1) exhibit rare ultrashort H···H nonbonded contacts (d(H···H) = 1.56 Å). In this article, on the basis of density functional theory and ab initio molecular dynamics simulations, we propose new molecular motifs where d(H···H) can be reduced to 1.44 Å (E1(E2) = Si(Ge), 3). Further tuning the structure of the macrocycle by replacing the bulky phenyl groups by ethylenic spacers and substitution of the H-atoms by -CN groups makes the cavity more compact and furnishes even shorter d(H···H) = 1.38 Å (E1(E2) = Ge(Ge), 8). These unusually close H···H nonbonded contacts originate from the strong attractive noncovalent interactions between them, which are evident from various computational indicators, namely, NCI, Wiberg bond index, relaxed force constant, quantum theory of atoms in molecules, and natural orbitals for chemical valence combined with the extended transition state method analyses. Substantial stabilization of the in,in-configuration (exhibiting short H···H contacts) compared with the out,out-configuration (by ∼5.7 kcal/mol) and statistically insignificant fluctuations in ⟨d(H···H)⟩ and ⟨θav⟩(θ(E1(E2)-H···H = 152°) at room temperature confirm that the ultrashort H···H distances in these molecules are thermodynamically stable and would be persistent under ambient experimental conditions.
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Affiliation(s)
- Nilangshu Mandal
- Department of Spectroscopy, Indian Association for the Cultivation of Science , 2A and 2B Raja S. C. Mullick Road, Jadavpur, 700032 Kolkata, West Bengal, India
| | - Saied Md Pratik
- Department of Spectroscopy, Indian Association for the Cultivation of Science , 2A and 2B Raja S. C. Mullick Road, Jadavpur, 700032 Kolkata, West Bengal, India
| | - Ayan Datta
- Department of Spectroscopy, Indian Association for the Cultivation of Science , 2A and 2B Raja S. C. Mullick Road, Jadavpur, 700032 Kolkata, West Bengal, India
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40
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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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41
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MacInnis MC, DeMott JC, Zolnhofer EM, Zhou J, Meyer K, Hughes RP, Ozerov OV. Cationic Two-Coordinate Complexes of Pd(I) and Pt(I) Have Longer Metal-Ligand Bonds Than Their Neutral Counterparts. Chem 2016. [DOI: 10.1016/j.chempr.2016.11.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cukrowski I, Sagan F, Mitoraj MP. On the Stability of Cis- and Trans-2-Butene Isomers. An Insight Based on the FAMSEC, IQA, and ETS-NOCV Schemes. J Comput Chem 2016; 37:2783-2798. [PMID: 27730662 DOI: 10.1002/jcc.24504] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 09/08/2016] [Accepted: 09/10/2016] [Indexed: 01/19/2023]
Abstract
In the present account, the real space fragment attributed molecular system energy change (FAMSEC) approach, interacting quantum atoms energy decomposition scheme as well as molecular orbitals based the extended transition state scheme coupled with natural orbitals for chemical valence (ETS-NOCV) have been, for the first time, successfully used to delineate factors of importance for stability of the 2-butene conformers (cis-eq, cis-TS, trans-eq, trans-TS). Our results demonstrate that atoms of the controversial H-H contact in cis-eq (i) are involved in attractive interaction dominated by the exchange-correlation term, (ii) are weekly stabilized, (iii) show trends in several descriptors found in other typical H-bonds, and (iv) are part of most stabilized CH-HC fragment (loc-FAMSEC = -3.6 kcal/mol) with most favourably changed intrafragment interactions on trans-eq→cis-eq. Moreover, lower stability of cis-eq vs. trans-eq is linked with the entire HCCH (ethylenic) fragment which destabilized cis-eq (mol-FAMSEC, +3.9 kcal/mol) the most. Although the H-H contact can be linked with smaller, relative to trans-, rotational energy barrier in cis-2-butene, we have proven that to rationalize this phenomenon one must account for changes in interactions between various fragments that constitute the entire molecule. Importantly, we discovered a number of comparable trends in fundamental properties of equivalent molecular fragments on a methyl group rotation; for example, interaction between BP-free H-atoms in trans-eq (involving CH bonds of the methyl and ethylenic units) and BP-linked H-atoms in cis-eq. Clearly, rotational energy barrier cannot be entirely (i) rationalized by the properties of or (ii) attributed to the H-H contact in cis-eq. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Ignacy Cukrowski
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
| | - Filip Sagan
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, Cracow, 30-060, Poland
| | - Mariusz Paweł Mitoraj
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, Cracow, 30-060, Poland
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Stanković B, Ostojić B, Gruden M, Popović A, Đorđević D. Substituted naphthalenes: Stability, conformational flexibility and description of bonding based on ETS-NOCV method. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.08.056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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44
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Ardizzoia GA, Bea M, Brenna S, Therrien B. A Quantitative Description of the σ-Donor and π-Acceptor Properties of Substituted Phenanthrolines. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600647] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- G. Attilio Ardizzoia
- Department of Science and High Technology; University of Insubria; Via Valleggio, 9 22100 Como Italy
| | - Michela Bea
- Department of Science and High Technology; University of Insubria; Via Valleggio, 9 22100 Como Italy
| | - Stefano Brenna
- Department of Science and High Technology; University of Insubria; Via Valleggio, 9 22100 Como Italy
| | - Bruno Therrien
- Institute of Chemistry; University of Neuchâtel; Avenue de Bellevaux 51 2000 Neuchâtel Switzerland
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Belkova NV, Epstein LM, Filippov OA, Shubina ES. Hydrogen and Dihydrogen Bonds in the Reactions of Metal Hydrides. Chem Rev 2016; 116:8545-87. [PMID: 27285818 DOI: 10.1021/acs.chemrev.6b00091] [Citation(s) in RCA: 148] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The dihydrogen bond-an interaction between a transition-metal or main-group hydride (M-H) and a protic hydrogen moiety (H-X)-is arguably the most intriguing type of hydrogen bond. It was discovered in the mid-1990s and has been intensively explored since then. Herein, we collate up-to-date experimental and computational studies of the structural, energetic, and spectroscopic parameters and natures of dihydrogen-bonded complexes of the form M-H···H-X, as such species are now known for a wide variety of hydrido compounds. Being a weak interaction, dihydrogen bonding entails the lengthening of the participating bonds as well as their polarization (repolarization) as a result of electron density redistribution. Thus, the formation of a dihydrogen bond allows for the activation of both the MH and XH bonds in one step, facilitating proton transfer and preparing these bonds for further transformations. The implications of dihydrogen bonding in different stoichiometric and catalytic reactions, such as hydrogen exchange, alcoholysis and aminolysis, hydrogen evolution, hydrogenation, and dehydrogenation, are discussed.
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Affiliation(s)
- Natalia V Belkova
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Vavilov Street 28, 119991 Moscow, Russia
| | - Lina M Epstein
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Vavilov Street 28, 119991 Moscow, Russia
| | - Oleg A Filippov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Vavilov Street 28, 119991 Moscow, Russia
| | - Elena S Shubina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Vavilov Street 28, 119991 Moscow, Russia
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Yuan B, Shin JW, Bernstein ER. Dynamics and fragmentation of van der Waals and hydrogen bonded cluster cations: (NH3)n and (NH3BH3)n ionized at 10.51 eV. J Chem Phys 2016; 144:144315. [DOI: 10.1063/1.4945624] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Bing Yuan
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, USA
| | - Joong-Won Shin
- Division of Chemistry and Biological Sciences, Governors State University, University Park, Illinois 60484-0975, USA
| | - Elliot R. Bernstein
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, USA
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47
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Non-Covalent Interactions in Hydrogen Storage Materials LiN(CH3)2BH3 and KN(CH3)2BH3. CRYSTALS 2016. [DOI: 10.3390/cryst6030028] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Cukrowski I, Mangondo P. Interacting quantum fragments-rooted preorganized-interacting fragments attributed relative molecular stability of the Be(II) complexes of nitrilotriacetic acid and nitrilotri-3-propionic acid. J Comput Chem 2016; 37:1373-87. [PMID: 26993356 DOI: 10.1002/jcc.24346] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 01/26/2016] [Accepted: 01/26/2016] [Indexed: 11/11/2022]
Abstract
A method designed to investigate, on a fundamental level, the origin of relative stability of molecular systems using Be(II) complexes with nitrilotriacetic acid (NTA) and nitrilotri-3-propionic acid (NTPA) is described. It makes use of the primary and molecular fragment energy terms as defined in the IQA/F (Interacting Quantum Atoms/Fragments) framework. An extensive classical-type investigation, focused on single descriptors (bond length, density at critical point, the size of metal ion or coordination ring, interaction energy between Be(II) and a donor atom, etc.) showed that it is not possible to explain the experimental trend. The proposed methodology is fundamentally different in that it accounts for the total energy contributions coming from all atoms of selected molecular fragments, and monitors changes in defined energy terms (e.g., fragment deformation, inter- and intra-fragment interaction) on complex formation. By decomposing combined energy terms we identified the origin of relative stability of Be(II) (NTA) and Be(II) (NTPA) complexes. We found that the sum of coordination bonds' strength, as measured by interaction energies between Be(II) ion and donor atoms, favours Be(II) (NTA) but the binding energy of Be(II) ion to the entire ligand correlates well with experimental trend. Surprisingly, the origin of Be(II) (NTPA) being more stable is due to less severe repulsive interactions with the backbone of NTPA (C and H-atoms). This general purpose protocol can be employed not only to investigate the origin of relative stability of any molecular system (e.g., metal complexes) but, in principle, can be used as a predictive tool for, e.g., explaining reaction mechanism. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Ignacy Cukrowski
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria, Lynnwood Road, Hatfield, Pretoria, 0002, South Africa
| | - Paidamwoyo Mangondo
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria, Lynnwood Road, Hatfield, Pretoria, 0002, South Africa
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Umadevi P, Senthilkumar L. Metal-interacted histidine dimer: an ETS-NOCV and XANES study. RSC Adv 2016. [DOI: 10.1039/c6ra01264g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have analyzed the metal coordination in a histidine dimer, hydrated with a water molecule, based on the extended transition state scheme with the theory of natural orbitals for chemical valence (ETS-NOCV).
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Affiliation(s)
- P. Umadevi
- Department of Physics
- Bharathiar University
- Coimbatore
- India
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Dong H, Li W, Sun J, Li S, Klein ML. Understanding the Boron–Nitrogen Interaction and Its Possible Implications in Drug Design. J Phys Chem B 2015; 119:14393-401. [DOI: 10.1021/acs.jpcb.5b07783] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hao Dong
- Kuang
Yaming Honors School, Nanjing University, Nanjing, P.R. China
- Institute
for Computational Molecular Science, Temple University, 1900 North
12th Street, Philadelphia, Pennsylvania 19122-6078, United States
| | - Wei Li
- School
of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic
Chemistry of Ministry of Education, Institute of Theoretical and Computational
Chemistry, Nanjing University, Nanjing, P.R. China
| | - Jianwei Sun
- Department
of Physics, Temple University, 1900 North 12th Street, Philadelphia, Pennsylvania 19122-6078, United States
| | - Shuhua Li
- School
of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic
Chemistry of Ministry of Education, Institute of Theoretical and Computational
Chemistry, Nanjing University, Nanjing, P.R. China
| | - Michael L. Klein
- Institute
for Computational Molecular Science, Temple University, 1900 North
12th Street, Philadelphia, Pennsylvania 19122-6078, United States
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