1
|
Experimental and theoretical studies of hexylmeythylimidazolium tetrafluoroborate ionic liquid as cathodic corrosion inhibitor for mild steel. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
2
|
Macías-Hernández CE, Romero-Chávez MM, Mojica-Sánchez JP, Pineda-Urbina K, Martínez MTS, Jimenez-Ruiz EI, Via LD, Ramos-Organillo Á. Synthesis and characterization of new monothiooxalamides containing pyridine nuclei with promising antiproliferative and antioxidant activity. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
3
|
Revanappa SK, Soni I, Siddalinganahalli M, Jayaprakash GK, Flores-Moreno R, Bananakere Nanjegowda C. A Fukui Analysis of an Arginine-Modified Carbon Surface for the Electrochemical Sensing of Dopamine. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6337. [PMID: 36143660 PMCID: PMC9506051 DOI: 10.3390/ma15186337] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
Amino acid-modified carbon interfaces have huge applications in developing electrochemical sensing applications. Earlier reports suggested that the amine group of amino acids acted as an oxidation center at the amino acid-modified electrode interface. It was interesting to locate the oxidation centers of amino acids in the presence of guanidine. In the present work, we modeled the arginine-modified carbon interface and utilized frontier molecular orbitals and analytical Fukui functions based on the first principle study computations to analyze arginine-modified CPE (AMCPE) at a molecular level. The frontier molecular orbital and analytical Fukui results suggest that the guanidine (oxidation) and carboxylic acid (reduction) groups of arginine act as additional electron transfer sites on the AMCPE surface. To support the theoretical observations, we prepared the arginine-modified CPE (AMCPE) for the cyclic voltammetric sensing of dopamine (DA). The AMCPE showed excellent performance in detecting DA in blood serum samples.
Collapse
Affiliation(s)
- Santhosh Kumar Revanappa
- Department of Chemistry, University B.D.T. College of Engineering Visvesvaraya Technological University, Davangere 577004, India
| | - Isha Soni
- Laboratory of Quantum Electrochemistry, School of Advacned Chemical Sciences, Shoolini University, Solan 173229, India
| | - Manjappa Siddalinganahalli
- Department of Chemistry, University B.D.T. College of Engineering Visvesvaraya Technological University, Davangere 577004, India
| | - Gururaj Kudur Jayaprakash
- Laboratory of Quantum Electrochemistry, School of Advacned Chemical Sciences, Shoolini University, Solan 173229, India
- Department of Chemistry, Nitte Meenakshi Institute of Technology, Bangalore 560064, India
| | - Roberto Flores-Moreno
- Departamento de Química, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad Guadalajara, Blvd. Marcelino García Barragán 1421, Guadalajara C.P. 44430, Mexico
| | | |
Collapse
|
4
|
Electrochemical Determination of Paracetamol at Cu doped ZnO/Nanoparticle with TX-100-Surfactant MCPE : A Cyclic Voltammetric Technique. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
5
|
Discotic anthraquinones as novel corrosion inhibitor for mild steel surface. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
6
|
Pedroza-Montero JN, Calaminici P, Köster AM. First-principle polarizabilities of nanosystems from auxiliary density perturbation theory with MINRES. Theor Chem Acc 2022. [DOI: 10.1007/s00214-021-02864-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
7
|
|
8
|
Interaction between organic molecules and a gold nanoparticle: a quantum chemical topological analysis. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02821-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
9
|
Influence of cationic surfactant cetyltrimethylammonium bromide for electrochemical detection of guanine, uric acid and dopamine. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114893] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
10
|
Gao F, Tao D, Ju C, Yang BB, Bao XQ, Zhang D, Zhang TT, Li L. Regioselectivity of aminomethylation in 3-acetyl-7-hydroxycoumarins: Mannich bases and Betti bases. NEW J CHEM 2021. [DOI: 10.1039/d1nj01584b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The atomic electron density distribution in 3-acetyl-7-hydroxycoumarin was analysed to elucidate the regioselectivity of aminomethylation.
Collapse
Affiliation(s)
- Fan Gao
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- China
| | - Deng Tao
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- China
| | - Cheng Ju
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- China
| | - Bei-Bei Yang
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- China
| | - Xiu-Qi Bao
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- China
| | - Dan Zhang
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- China
| | - Tian-Tai Zhang
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- China
| | - Li Li
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- China
| |
Collapse
|
11
|
Pino-Rios R, Inostroza D, Cárdenas-Jirón G, Tiznado W. Orbital-Weighted Dual Descriptor for the Study of Local Reactivity of Systems with (Quasi-) Degenerate States. J Phys Chem A 2019; 123:10556-10562. [PMID: 31710492 DOI: 10.1021/acs.jpca.9b07516] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An alternative response function, based on the dual descriptor in terms of Koopmans' approximation, is hereby proposed for the description of chemical reactivity in systems with (quasi-) degenerate frontier molecular orbitals. This descriptor is constructed from Fukui functions that include contributions from different orbitals, i.e., orbital-weighted Fukui functions. The methodology is applied to three case studies: the first case consists of a series of benchmark organic and inorganic molecules from which the dual descriptor, based only on frontier orbitals, is not appropriate to describe their reactivity. The second case deals with the proper description of chemical reactivity in Diels-Alder reactions between fullerene C60 and cyclopentadiene (CP), revealing the importance of considering secondary orbital interactions for an adequate regioselectivity description. The third, and last case, consists of a series of polycyclic aromatic hydrocarbons (PAHs) possessing molecular orbital degeneracy. By means of analyzing of this descriptor, an alternative approach to the description of aromaticity is proposed. In all cases, the proposed index called "orbital-weighted dual descriptor" has proven to accurately describe the chemical reactivity and aromaticity of the studied systems.
Collapse
Affiliation(s)
- Ricardo Pino-Rios
- Laboratorio de Quı́mica Teórica, Facultad de Quı́mica y Biologı́a , Universidad de Santiago de Chile (USACH) Av. Libertador Bernardo O'Higgins 3363 , Santiago , Estación Central, Región Metropolitana 9170022 , Chile
| | - Diego Inostroza
- Doctorado en Fisicoquı́mica Molecular. Facultad de Ciencias Exactas , Universidad Andres Bello (UNAB) , Av. República 275 , Santiago , Región Metropolitana 8370146 , Chile
| | - Gloria Cárdenas-Jirón
- Laboratorio de Quı́mica Teórica, Facultad de Quı́mica y Biologı́a , Universidad de Santiago de Chile (USACH) Av. Libertador Bernardo O'Higgins 3363 , Santiago , Estación Central, Región Metropolitana 9170022 , Chile
| | - William Tiznado
- Computational and Theoretical Chemistry Group, Departamento de Ciencias Quı́micas, Facultad de Ciencias Exactas , Universidad Andres Bello , Av. República 498 , Santiago , Región Metropolitana 8370251 , Chile
| |
Collapse
|
12
|
Cyclic Voltammetric and Quantum Chemical Studies of a Poly(methionine) Modified Carbon Paste Electrode for Simultaneous Detection of Dopamine and Uric Acid. CHEMOSENSORS 2019. [DOI: 10.3390/chemosensors7020024] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Fabrication of biocompatible electrodes for the investigation of catecholamines is a known challenge. In this work, methionine was chosen as a modifier for fabrication of a biocompatible carbon paste electrode by electropolymerization, through cyclic voltammetry. The electrochemical behavior of the poly(methionine) modified carbon paste electrode was characterized by cyclic voltammetry for simultaneous determination of dopamine (DA) and uric acid (UA) in a phosphate-buffered solution at pH 7.0. In the absence of an amino acid methionine layer, the bare carbon paste electrode exhibits rather poor voltammetric signals in DA and UA in the binary mixture, with oxidation potentials of DA and UA overlapping with each other. The poly(methionine) modified carbon paste electrode exhibits good catalytic activity with noticeably different oxidation potentials of DA and UA. The experimental results closely agree with the theoretical prediction based on a Fukui function complementary to the simulated electrostatic potential maps.
Collapse
|
13
|
Delgado-Venegas RI, Calaminici P, Köster AM. Mixed second and third energy derivatives from auxiliary density perturbation theory. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1549339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Patrizia Calaminici
- Departamento de Química, CINVESTAV. Avenida Instituto Politécnico Nacional 2508, México D.F., México
| | - Andreas M. Köster
- Departamento de Química, CINVESTAV. Avenida Instituto Politécnico Nacional 2508, México D.F., México
| |
Collapse
|
14
|
Kudur Jayaprakash G, Kumara Swamy BE, Nicole González Ramírez H, Tumbre Ekanthappa M, Flores-Moreno R. Quantum chemical and electrochemical studies of lysine modified carbon paste electrode surfaces for sensing dopamine. NEW J CHEM 2018. [DOI: 10.1039/c7nj04998f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have improved the sensitivity of a carbon paste electrode from lysine for the sensitive detection of dopamine.
Collapse
Affiliation(s)
- Gururaj Kudur Jayaprakash
- Departamento de Ingeniería de Proyectos
- Centro Universitario de Ciencias Exactas e Ingenierías
- Guadalajara Jal
- Mexico
| | - B. E. Kumara Swamy
- Department of P.G. Studies and Research in Industrial Chemistry
- Kuvempu University
- Shimoga
- India
| | - Henry Nicole González Ramírez
- Departamento de Química
- Centro Universitario de Ciencias Exactas e Ingenierías
- Universidad Guadalajara
- Guadalajara Jal
- Mexico
| | | | - Roberto Flores-Moreno
- Departamento de Química
- Centro Universitario de Ciencias Exactas e Ingenierías
- Universidad Guadalajara
- Guadalajara Jal
- Mexico
| |
Collapse
|
15
|
Jayaprakash GK, Flores-Moreno R. Regioselectivity in hexagonal boron nitride co-doped graphene. NEW J CHEM 2018. [DOI: 10.1039/c8nj03679a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The active electron transfer (ET) sites on the graphene surface can be controlled by hexagonal boron nitride (h-BN) doping.
Collapse
Affiliation(s)
| | - Roberto Flores-Moreno
- Departamento de Química
- Centro Universitario de Ciencias Exactas e Ingenierías
- Universidad Guadalajara
- Mexico
| |
Collapse
|
16
|
Kudur Jayaprakash G, Swamy BK, Casillas N, Flores-Moreno R. Analytical Fukui and cyclic voltammetric studies on ferrocene modified carbon electrodes and effect of Triton X-100 by immobilization method. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.11.154] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
17
|
Jayaprakash GK, Flores-Moreno R. Quantum chemical study of Triton X-100 modified graphene surface. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.109] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
18
|
Yañez O, Vásquez-Espinal A, Inostroza D, Ruiz L, Pino-Rios R, Tiznado W. A Fukui function-guided genetic algorithm. Assessment on structural prediction of Sin(n = 12-20) clusters. J Comput Chem 2017; 38:1668-1677. [DOI: 10.1002/jcc.24810] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 03/29/2017] [Accepted: 03/30/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Osvaldo Yañez
- Doctorado en Fisicoquímica Molecular; Facultad de Ciencias Exactas, Universidad Andres Bello; República 275 Santiago Chile
- Departamento de Ciencias Químicas; Facultad de Ciencias Exactas Universidad Andres Bello; República 275 Santiago Chile
| | - Alejandro Vásquez-Espinal
- Doctorado en Fisicoquímica Molecular; Facultad de Ciencias Exactas, Universidad Andres Bello; República 275 Santiago Chile
- Departamento de Ciencias Químicas; Facultad de Ciencias Exactas Universidad Andres Bello; República 275 Santiago Chile
| | - Diego Inostroza
- Centro de Bioinformatica y Simulación Molecular; Facultad de Ingeniería, Universidad de Talca; 2 Norte 685, Casilla 721 Talca Chile
| | - Lina Ruiz
- Centro de Investigación Biomédica, Universidad Autónoma de Chile; Santiago Chile
| | - Ricardo Pino-Rios
- Doctorado en Fisicoquímica Molecular; Facultad de Ciencias Exactas, Universidad Andres Bello; República 275 Santiago Chile
- Departamento de Ciencias Químicas; Facultad de Ciencias Exactas Universidad Andres Bello; República 275 Santiago Chile
| | - William Tiznado
- Doctorado en Fisicoquímica Molecular; Facultad de Ciencias Exactas, Universidad Andres Bello; República 275 Santiago Chile
- Departamento de Ciencias Químicas; Facultad de Ciencias Exactas Universidad Andres Bello; República 275 Santiago Chile
| |
Collapse
|
19
|
Delgado-Venegas RI, Mejía-Rodríguez D, Flores-Moreno R, Calaminici P, Köster AM. Analytic second derivatives from auxiliary density perturbation theory. J Chem Phys 2016; 145:224103. [PMID: 27984884 DOI: 10.1063/1.4971292] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Rogelio Isaac Delgado-Venegas
- Departamento de Química, CINVESTAV, Avenida Instituto Politécnico Nacional 2508, A.P. 14-740, México D.F. 07000, Mexico
| | - Daniel Mejía-Rodríguez
- Departamento de Química, CINVESTAV, Avenida Instituto Politécnico Nacional 2508, A.P. 14-740, México D.F. 07000, Mexico
| | - Roberto Flores-Moreno
- Departamento de Química, Universidad de Guadalajara, Boulevard Marcelino García Barragán 1421, Guadalajara, Jalisco 44430, Mexico
| | - Patrizia Calaminici
- Departamento de Química, CINVESTAV, Avenida Instituto Politécnico Nacional 2508, A.P. 14-740, México D.F. 07000, Mexico
| | - Andreas M. Köster
- Departamento de Química, CINVESTAV, Avenida Instituto Politécnico Nacional 2508, A.P. 14-740, México D.F. 07000, Mexico
| |
Collapse
|
20
|
Kudur Jayaprakash G, Casillas N, Astudillo-Sánchez PD, Flores-Moreno R. Role of Defects on Regioselectivity of Nano Pristine Graphene. J Phys Chem A 2016; 120:9101-9108. [PMID: 27797503 DOI: 10.1021/acs.jpca.6b08810] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gururaj Kudur Jayaprakash
- Departamento
de Ingeniería de Proyectos, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Boulevard Marcelino García
Barragán 1421, Guadalajara, Jalisco, C.P. 44430, Mexico
| | - Norberto Casillas
- Departamento
de Química, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad Guadalajara, Boulevard Marcelino García
Barragán 1421, Guadalajara, Jalisco, C.P. 44430, Mexico
| | - Pablo D. Astudillo-Sánchez
- Departamento
de Ingenierías, Centro Universitario de Tonalá, Universidad Guadalajara, Av. Nuevo Periférico No. 555, Ejido San
José Tatepozco, Tonalá, Jalisco, C.P. 48525, Mexico
| | - Roberto Flores-Moreno
- Departamento
de Química, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad Guadalajara, Boulevard Marcelino García
Barragán 1421, Guadalajara, Jalisco, C.P. 44430, Mexico
| |
Collapse
|
21
|
|
22
|
A generalized operational formula based on total electronic densities to obtain 3D pictures of the dual descriptor to reveal nucleophilic and electrophilic sites accurately on closed-shell molecules. J Comput Chem 2016; 37:2279-303. [DOI: 10.1002/jcc.24453] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 06/20/2016] [Accepted: 06/27/2016] [Indexed: 11/07/2022]
|
23
|
Zuniga-Gutierrez B, Köster AM. Analytical GGA exchange–correlation kernel calculation in auxiliary density functional theory. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1125026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Andreas M. Köster
- Departamento de Química, CINVESTAV, Avenida Instituto Politécnico Nacional 2508, México D.F., México
| |
Collapse
|
24
|
Computational study of the structure, bonding and reactivity of selected helical metallocenes. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.09.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
25
|
Ignacio Martínez-Araya J, Grand A, Glossman-Mitnik D. Towards the rationalization of catalytic activity values by means of local hyper-softness on the catalytic site: a criticism about the use of net electric charges. Phys Chem Chem Phys 2015; 17:29764-75. [PMID: 26480020 DOI: 10.1039/c5cp03822g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By means of the Spin-Polarized Conceptual Density Functional Theory (SP-CDFT), three 2,6-bis(imino)pyridine catalysts based on iron(II), used for polymerization of ethylene, were studied. The catalysts differed by the substituent group, bearing either -H, -NO2 or -OCH3. To date, catalytic activity, a purely experimental parameter measuring the mass of polyethylene produced per millimole of iron per time and pressure unit at a fixed temperature, has not been explained in terms of local hyper-softness. The latter is a purely theoretical parameter designed for quantifying electronic effects; it is measured using the metal atom responsible for the coordination process with the monomer (ethylene). Because steric effects are not relevant in these kinds of catalysts and only electronic effects drive the catalytic process, an interesting link is found between catalytic activity and the local hyper-softness condensed on the iron atom by means of four functionals (B3LYP, BP86, B97D, and VSXC). This work demonstrates that the use of local hyper-softness, predicted by the SP-CDFT, is a suitable parameter for explaining order relationships among catalytic activity values, thus quantifying the electronic influence of the substituent group inducing this difference; the use of only net electric charges does not lead to clear conclusions. This finding can aid in estimating catalytic activities leading to a more rational design of new catalysts via computational chemistry.
Collapse
Affiliation(s)
- Jorge Ignacio Martínez-Araya
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. República 230, Código Postal 8370134, Santiago, Chile.
| | | | | |
Collapse
|
26
|
Mejía-Rodríguez D, Venegas RID, Calaminici P, Köster AM. Robust and Efficient Auxiliary Density Perturbation Theory Calculations. J Chem Theory Comput 2015; 11:1493-500. [PMID: 26574360 DOI: 10.1021/ct501065g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new iterative solver for the recently developed time-dependent auxiliary density perturbation theory is presented. It is based on the Eirola-Nevanlinna algorithm for large nonsymmetric linear equation systems. The new methodology is validated by static and dynamic polarizability calculations of small molecules. Comparison between the analytic and iterative solutions of the response equation system shows excellent agreement for the calculated static and dynamic polarizabilities. The new iterative solver reduces the formal scaling from [Symbol: see text](N(4)) to [Symbol: see text](N(3)). Furthermore, the observed computational scaling for linear alkane chains is N(1.6). This subquadratic behavior is possible in systems with a few hundred atoms because of the very small prefactors of the [Symbol: see text](N(3)) and [Symbol: see text](N(2)) steps remaining in the iterative solver. To demonstrate the potential of this new methodology, static polarizabilities of giant fullerenes up to C960, with more than 14,000 basis functions, are calculated.
Collapse
Affiliation(s)
- Daniel Mejía-Rodríguez
- Departamento de Quı́mica, Cinvestav , Avenida Instituto Politénico Nacional 2508, A.P. 14-740 México D.F. 07000, México
| | - Rogelio Isaac Delgado Venegas
- Departamento de Quı́mica, Cinvestav , Avenida Instituto Politénico Nacional 2508, A.P. 14-740 México D.F. 07000, México
| | - Patrizia Calaminici
- Departamento de Quı́mica, Cinvestav , Avenida Instituto Politénico Nacional 2508, A.P. 14-740 México D.F. 07000, México
| | - Andreas M Köster
- Departamento de Quı́mica, Cinvestav , Avenida Instituto Politénico Nacional 2508, A.P. 14-740 México D.F. 07000, México
| |
Collapse
|
27
|
Morales-Bayuelo A, Caballero J. New insights into steric and electronic effects in a series of phosphine ligands from the perspective of local quantum similarity using the Fukui function. J Mol Model 2015; 21:45. [DOI: 10.1007/s00894-015-2600-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 01/26/2015] [Indexed: 11/24/2022]
|
28
|
QSAR study of the DPPH· radical scavenging activity of coumarin derivatives and xanthine oxidase inhibition by molecular docking. OPEN CHEM 2014. [DOI: 10.2478/s11532-014-0555-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractA Quantitative Structure-Activity Relationship (QSAR) of coumarins by genetic algorithms employing physicochemical, topological, lipophilic and electronic descriptors was performed. We have used experimental antioxidant activities of specific coumarin derivatives against the DPPH· radical molecule. Molecular descriptors such as Randic Path/Walk, hydrophilic factor and chemical hardness were selected to propose a mathematical model. We obtained a linear correlation with R2 = 96.65 and Q
LOO2 = 93.14 values. The evaluation of the predictive ability of the model was performed by applying the Q
ASYM2, $\hat r^2 $ and Δr
m2 methods. Fukui functions were calculated here for coumarin derivatives in order to delve into the mechanics by which they work as primary antioxidants. We also investigated xanthine oxidase inhibition with these coumarins by molecular docking. Our results show that hydrophobic, electrostatic and hydrogen bond interactions are crucial in the inhibition of xanthine oxidase by coumarins.
Collapse
|
29
|
Computational chemistry of natural products: a comparison of the chemical reactivity of isonaringin calculated with the M06 family of density functionals. J Mol Model 2014; 20:2316. [PMID: 24992989 DOI: 10.1007/s00894-014-2316-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 05/19/2014] [Indexed: 10/25/2022]
Abstract
The M06 family of density functionals has been assessed for the calculation of the molecular structure and properties of the Isonaringin flavonoid that can be an interesting material for dye-sensitized solar cells (DSSC). The chemical reactivity descriptors have been calculated through chemical reactivity theory within DFT (CR-DFT). The active sites for nucleophilic and electrophilic attacks have been chosen by relating them to the Fukui function indices and the dual descriptor f ((2))(r). A comparison between the descriptors calculated through vertical energy values and those arising from the Janak's theorem approximation have been performed in order to check for the validity of the last procedure.
Collapse
|
30
|
In pursuit of negative Fukui functions: molecules with very small band gaps. J Mol Model 2014; 20:2162. [DOI: 10.1007/s00894-014-2162-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 01/27/2014] [Indexed: 10/25/2022]
|
31
|
Bultinck P, Cardenas C, Fuentealba P, Johnson PA, Ayers PW. How to Compute the Fukui Matrix and Function for Systems with (Quasi-)Degenerate States. J Chem Theory Comput 2013; 10:202-10. [DOI: 10.1021/ct400874d] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Patrick Bultinck
- Ghent University, Department of Inorganic and Physical Chemistry, Krijgslaan 281 (S3), 9000 Gent, Belgium
| | - Carlos Cardenas
- Departamento
de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile and Centro para el desarrollo de la
Nanociencias y Nanotecnologia, CEDENNA,
Av. Ecuador 3493, Santiago, Chile
| | - Patricio Fuentealba
- Departamento
de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile and Centro para el desarrollo de la
Nanociencias y Nanotecnologia, CEDENNA,
Av. Ecuador 3493, Santiago, Chile
| | - Paul A. Johnson
- Dept. of Chemistry and Chemical Biology, McMaster University, Hamilton ON Canada L8S 4M1
| | - Paul W. Ayers
- Dept. of Chemistry and Chemical Biology, McMaster University, Hamilton ON Canada L8S 4M1
| |
Collapse
|
32
|
Mishra D, Das S, Krishnamurthy S, Pal S. Understanding the orientation of water molecules around the phosphate and attached functional groups in a phospholipid molecule: a DFT-based study. MOLECULAR SIMULATION 2013. [DOI: 10.1080/08927022.2013.783701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
33
|
Bultinck P, Cardenas C, Fuentealba P, Johnson PA, Ayers PW. Atomic Charges and the Electrostatic Potential Are Ill-Defined in Degenerate Ground States. J Chem Theory Comput 2013; 9:4779-88. [DOI: 10.1021/ct4005454] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Patrick Bultinck
- Department
of Inorganic and Physical Chemistry, Ghent University, Krijgslaan
281 (S3), 9000 Gent, Belgium
| | - Carlos Cardenas
- Departamento
de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
- Centro para el desarrollo de la Nanociencias y Nanotecnologia, CEDENNA, Av. Ecuador 3493, Santiago, Chile
| | - Patricio Fuentealba
- Departamento
de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
- Centro para el desarrollo de la Nanociencias y Nanotecnologia, CEDENNA, Av. Ecuador 3493, Santiago, Chile
| | - Paul A. Johnson
- Department of Chemistry & Chemical Biology, McMaster University, Hamilton, Ontario, Canada L8S 4M1
| | - Paul W. Ayers
- Department of Chemistry & Chemical Biology, McMaster University, Hamilton, Ontario, Canada L8S 4M1
| |
Collapse
|
34
|
Carmona-Espíndola J, Köster AM. Photoabsorption spectra from time-dependent auxiliary density functional theory. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0501] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Time-dependent auxiliary density perturbation theory (TDADPT) is extended to the calculation of excited states. The resulting time-dependent auxiliary density functional theory (TDADFT) is structurally identical to the original formulation of Casida. However, significant simplifications occur for the Coulomb and exchange–correlation response due to the underlying auxiliary density functional theory. Here, we present the working equations for TDADFT and a new implementation. Because this new parallel TDADFT implementation is particularly well suited for the calculation of large numbers of excitations, we validate it by the calculation of photoabsorption spectra. Direct comparison with experiment underlines the accuracy and reliability of TDADFT. For selected peaks of the studied polycyclic aromatic hydrocarbon spectra, the assignments of the underlying excitations are also presented.
Collapse
Affiliation(s)
- Javier Carmona-Espíndola
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa Av. San Rafael Atlixco N° 186, Col. Vicentina C.P. 09340, Iztapalapa, México D.F
| | - Andreas M. Köster
- Departamento de Química, CINVESTAV, Avenida Instituto Politécnico Nacional 2508, A.P. 14-740 México D.F. 07000, México
| |
Collapse
|
35
|
Martínez-Araya JI, Salgado-Morán G, Glossman-Mitnik D. Computational nanochemistry report on the oxicams--conceptual DFT indices and chemical reactivity. J Phys Chem B 2013; 117:6339-51. [PMID: 23656309 DOI: 10.1021/jp400241q] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A density functional theory study of eight oxicams was carried out in order to determine their global and local reactivities. These types of reactivities were measured by means of global and local reactivity descriptors coming from the conceptual density functional theory. Net electrophilicity as a global reactivity descriptor and local hypersoftness as a local reactivity descriptor were the used tools to distinguish reactivity and selectivity among these oxicams. Globally, isoxicam presents the highest electron donating capacity; meanwhile, the highest electron accepting capacity is exhibited by droxicam. Locally, two oxicams present neither nucleophilic nor electrophilic relevant reactivity in their peripheral pyridine ring, droxicam and tenoxicam, so that their more reactive zones are found on the respective fused rings. Oxicams have been divided into two subgroups in order to facilitate the local analysis of reactivity. One group is characterized because their most important condensed values for local hypersoftnes are well-separated: 4-meloxicam, lornoxicam, meloxicam, and normeloxicam. Meanwhile, the opposite situation is found in droxicam, isoxicam, piroxicam, and tenoxicam. As a whole, the nucleophilic characteristic noticeably predominates in these eight oxicams instead of an electrophilic behavior, thus meaning a greater tendency to donate electrons rather than withdrawing them; a consequence of this behavior implies a favorable interaction with a hypothetical receptor bearing one or more electron acceptor functional groups rather than electron donor functional groups; this would imply a maximization of this interaction from the covalent point of view.
Collapse
Affiliation(s)
- Jorge Ignacio Martínez-Araya
- Dirección de Investigación y Desarrollo, Universidad Pedro de Valdivia, Sede Santiago, Campus Tobalaba, Santiago, Chile
| | | | | |
Collapse
|
36
|
Bozhko SI, Krasnikov SA, Lübben O, Murphy BE, Radican K, Semenov VN, Wu HC, Levchenko EA, Chaika AN, Sergeeva NN, Shvets IV. Correlation between charge-transfer and rotation of C60 on WO2/W(110). NANOSCALE 2013; 5:3380-3386. [PMID: 23467592 DOI: 10.1039/c3nr34087b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Understanding molecular switching between different charge states is crucial to further progress in molecule-based nano-electronic devices. Herein we have employed scanning tunnelling microscopy to visualize different charge states of a single C60 molecule within a molecular layer grown on the WO2/W(110) surface. The results obtained demonstrate that individual C60 molecules within the layer switch between neutral and negatively charged states in the temperature range of 220-260 K over the time scale of the experiment. The charging of the C60 causes changes in the local density of electron states and consequently a variation in tunnelling current. Using density functional theory calculations, it was found that the charged state corresponds to the negatively charged C60(-), which has accepted an electron. The switching of the molecule into the charged state is triggered continuously by tunnelling electrons when the STM tip is static above an individual C60 molecule with a bias applied. Molecular movement accompanies the molecule's switching between these states.
Collapse
Affiliation(s)
- Sergey I Bozhko
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Shape entropy’s response to molecular ionization. J Mol Model 2013; 19:1677-83. [DOI: 10.1007/s00894-012-1725-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Accepted: 12/03/2012] [Indexed: 10/27/2022]
|
38
|
Computational Study of the Chemical Reactivity Properties of the Rhodamine B Molecule. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.procs.2013.05.246] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
39
|
Computational Nutraceutics: Chemical Reactivity Properties of the Flavonoid Naringin by Means of Conceptual DFT. J CHEM-NY 2013. [DOI: 10.1155/2013/850297] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The M06 family of density functionals has been assessed for the calculation of the molecular structure and properties of the Naringin molecule. The chemical reactivity descriptors have been calculated through Conceptual DFT. The active sites for nucleophilic and electrophilic attacks have been chosen by relating them to the Fukui function indices and the dual descriptorf(2)(r). A comparison between the descriptors calculated through vertical energy values and those arising from the Koopmans' theorem approximation has been performed in order to check for the validity of the last procedure.
Collapse
|
40
|
An intermediate level of approximation for computing the dual descriptor. J Mol Model 2012; 19:2811-20. [PMID: 23229228 DOI: 10.1007/s00894-012-1599-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Accepted: 09/19/2012] [Indexed: 10/27/2022]
Abstract
At present, there are two levels of approximation to compute the dual descriptor (DD). The first uses the total electronic density of the original system along with the electronic densities of the system with one more electron and one less electron, but this procedure is time consuming and normal termination of computation of total electronic densities is not guaranteed. The second level of approximation uses only the electronic densities of frontier molecular orbitals, HOMO and LUMO, to avoid the former approximation; however, the orbital relaxation implicitly included in the first level of approximation is absent in the second, thus risking an incorrect interpretation of local reactivity. Between the lowest occupied molecular orbital (LOMO) and the highest unoccupied molecular orbital (HUMO), a framework to provide an expression of the DD in terms of the electronic densities of all molecular orbitals (except HUMO and LOMO) has been proposed to be implemented by programmers as a computational code. This methodology implies another level of approximation located between the conventional approximation methods mentioned above. In this study, working equations have been oriented toward molecular closed- and open-shell systems. In addition, the mathematical expression for a closed-shell system was applied to acetylene in order to assess the capability of this approach to generate the DD.
Collapse
|
41
|
Acelas NY, López D, Mondragón F, Tiznado W, Flórez E. Topological analysis of tetraphosphorus oxides (P4O6+n (n = 0–4)). J Mol Model 2012; 19:2057-67. [DOI: 10.1007/s00894-012-1633-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 10/05/2012] [Indexed: 10/27/2022]
|
42
|
Explaining reaction mechanisms using the dual descriptor: a complementary tool to the molecular electrostatic potential. J Mol Model 2012; 19:2715-22. [PMID: 22846923 DOI: 10.1007/s00894-012-1520-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 06/25/2012] [Indexed: 10/28/2022]
Abstract
The intrinsic reactivity of cyanide when interacting with a silver cation was rationalized using the dual descriptor (DD) as a complement to the molecular electrostatic potential (MEP) in order to predict interactions at the local level. It was found that DD accurately explains covalent interactions that cannot be explained by MEP, which focuses on essentially ionic interactions. This allowed the rationalization of the reaction mechanism that yields silver cyanide in the gas phase. Other similar reaction mechanisms involving a silver cation interacting with water, ammonia, and thiosulfate were also explained by the combination of MEP and DD. This analysis provides another example of the usefulness of DD as a tool for gaining a deeper understanding of any reaction mechanism that is mainly governed by covalent interactions.
Collapse
|
43
|
Martínez-Araya JI. Revisiting caffeate's capabilities as a complexation agent to silver cation in mining processes by means of the dual descriptor--a conceptual DFT approach. J Mol Model 2012; 18:4299-307. [PMID: 22570079 DOI: 10.1007/s00894-012-1405-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Accepted: 03/08/2012] [Indexed: 10/28/2022]
Abstract
Caffeic acid (C(9)H(8)O(4)) and its conjugate base C(9)H(7)O(4) (-) (anionic form-known as caffeate) were analyzed computationally through the use of quantum chemistry to assess their intrinsic global and local reactivity using the tools of conceptual density functional theory. The anionic form was found to be better at coordinating the silver cation than caffeic acid thus suggesting the use of caffeate as a complexation agent. The complexation capability of caffeate was compared with that of some of the most common ligand agents used to coordinate silver cations. Local reactivity descriptors allowed identification of the preferred sites on caffeate for silver cation coordination thus generating a plausible silver complex. All silver complexes were analyzed thermodynamically considering interaction energies in both gas and aqueous phases; the complexation free energy in aqueous phase was also determined. These results suggest that more attention be paid to the caffeate anion and its derivatives because this work has shed new light on the behavior of this anion in the recovery of silver cations that could be exploited in silver mining processes in a environmentally friendly way.
Collapse
Affiliation(s)
- Jorge Ignacio Martínez-Araya
- Vicerrectoría de Investigación y Desarrollo and Facultad de Ingeniería, Campus República, Sede Santiago, Universidad Pedro de Valdivia, Av. Libertador Bernardo O'Higgins 2222, Código Postal 8370962, Santiago, Chile.
| |
Collapse
|
44
|
Osorio E, Ferraro MB, Oña OB, Cardenas C, Fuentealba P, Tiznado W. Assembling Small Silicon Clusters Using Criteria of Maximum Matching of the Fukui Functions. J Chem Theory Comput 2011; 7:3995-4001. [DOI: 10.1021/ct200643z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Edison Osorio
- Departamento de Química, Facultad de Ciencias Exactas, Universidad Andres Bello, Avenida República 252, Santiago de Chile
| | - Marta B. Ferraro
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, and IFIBA, CONICET, (1428) Ciudad Universitaria - Pab. I., Buenos Aires, Argentina
| | - Ofelia B. Oña
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, and IFIBA, CONICET, (1428) Ciudad Universitaria - Pab. I., Buenos Aires, Argentina
| | - Carlos Cardenas
- Departamento de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile and CEDENA
| | - Patricio Fuentealba
- Departamento de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile and CEDENA
| | - William Tiznado
- Departamento de Química, Facultad de Ciencias Exactas, Universidad Andres Bello, Avenida República 252, Santiago de Chile
| |
Collapse
|
45
|
Muya JT, De Proft F, Geerlings P, Nguyen MT, Ceulemans A. Theoretical Study on the Regioselectivity of the B80 Buckyball in Electrophilic and Nucleophilic Reactions Using DFT-Based Reactivity Indices. J Phys Chem A 2011; 115:9069-80. [DOI: 10.1021/jp2050367] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Jules Tshishimbi Muya
- Department of Chemistry, and Mathematical Modeling and Computational Science Center (LMCC), Katholieke Universiteit Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Paul Geerlings
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Minh Tho Nguyen
- Department of Chemistry, and Mathematical Modeling and Computational Science Center (LMCC), Katholieke Universiteit Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Arnout Ceulemans
- Department of Chemistry, and Mathematical Modeling and Computational Science Center (LMCC), Katholieke Universiteit Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| |
Collapse
|
46
|
Cárdenas C, Ayers PW, Cedillo A. Reactivity indicators for degenerate states in the density-functional theoretic chemical reactivity theory. J Chem Phys 2011; 134:174103. [PMID: 21548669 DOI: 10.1063/1.3585610] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Carlos Cárdenas
- Departamento de Fisica, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | | | | |
Collapse
|
47
|
Martínez Araya JI. The dual descriptor: Working equations applied on electronic open-shell molecular systems. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.02.051] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
48
|
Gawęda S, Kowalik R, Kwolek P, Macyk W, Mech J, Oszajca M, Podborska A, Szaciłowski K. Nanoscale Digital Devices Based on the Photoelectrochemical Photocurrent Switching Effect: Preparation, Properties and Applications. Isr J Chem 2011. [DOI: 10.1002/ijch.201000057] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
49
|
Carmona-Espíndola J, Flores-Moreno R, Köster AM. Time-dependent auxiliary density perturbation theory. J Chem Phys 2010; 133:084102. [DOI: 10.1063/1.3478551] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
50
|
Fuentealba P, Florez E, Tiznado W. Topological Analysis of the Fukui Function. J Chem Theory Comput 2010; 6:1470-8. [DOI: 10.1021/ct100022w] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Patricio Fuentealba
- Departamento de Física, Universidad de Chile, Las Palmeras 3425, Santiago-Chile, Instituto de Química, Universidad de Antioquia, A.A. 1226, Medellín, Colombia, and Departamento de Ciencias Químicas, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, Av. República 275, Santiago-Chile
| | - Elizabeth Florez
- Departamento de Física, Universidad de Chile, Las Palmeras 3425, Santiago-Chile, Instituto de Química, Universidad de Antioquia, A.A. 1226, Medellín, Colombia, and Departamento de Ciencias Químicas, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, Av. República 275, Santiago-Chile
| | - William Tiznado
- Departamento de Física, Universidad de Chile, Las Palmeras 3425, Santiago-Chile, Instituto de Química, Universidad de Antioquia, A.A. 1226, Medellín, Colombia, and Departamento de Ciencias Químicas, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, Av. República 275, Santiago-Chile
| |
Collapse
|