1
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Alagawani S, Vasilyev V, Clayton AHA, Wang F. Insights into Halogen-Induced Changes in 4-Anilinoquinazoline EGFR Inhibitors: A Computational Spectroscopic Study. Molecules 2024; 29:2800. [PMID: 38930865 PMCID: PMC11206398 DOI: 10.3390/molecules29122800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/03/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024] Open
Abstract
The epidermal growth factor receptor (EGFR) is a pivotal target in cancer therapy due to its significance within the tyrosine kinase family. EGFR inhibitors like AG-1478 and PD153035, featuring a 4-anilinoquinazoline moiety, have garnered global attention for their potent therapeutic activities. While pre-clinical studies have highlighted the significant impact of halogen substitution at the C3'-anilino position on drug potency, the underlying mechanism remains unclear. This study investigates the influence of halogen substitution (X = H, F, Cl, Br, I) on the structure, properties, and spectroscopy of halogen-substituted 4-anilinoquinazoline tyrosine kinase inhibitors (TKIs) using time-dependent density functional methods (TD-DFT) with the B3LYP functional. Our calculations revealed that halogen substitution did not induce significant changes in the three-dimensional conformation of the TKIs but led to noticeable alterations in electronic properties, such as dipole moment and spatial extent, impacting interactions at the EGFR binding site. The UV-visible spectra show that more potent TKI-X compounds typically have shorter wavelengths, with bromine's peak wavelength at 326.71 nm and hydrogen, with the lowest IC50 nM, shifting its lambda max to 333.17 nm, indicating a correlation between potency and spectral characteristics. Further analysis of the four lowest-lying conformers of each TKI-X, along with their crystal structures from the EGFR database, confirms that the most potent conformer is often not the global minimum structure but one of the low-lying conformers. The more potent TKI-Cl and TKI-Br exhibit larger deviations (RMSD > 0.65 Å) from their global minimum structures compared to other TKI-X (RMSD < 0.15 Å), indicating that potency is associated with greater flexibility. Dipole moments of TKI-X correlate with drug potency (ln(IC50 nM)), with TKI-Cl and TKI-Br showing significantly higher dipole moments (>8.0 Debye) in both their global minimum and crystal structures. Additionally, optical spectral shifts correlate with potency, as TKI-Cl and TKI-Br exhibit blue shifts from their global minimum structures, in contrast to other TKI-X. This suggests that optical reporting can effectively probe drug potency and conformation changes.
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Affiliation(s)
- Sallam Alagawani
- Department of Chemistry and Biotechnology, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, VIC 3122, Australia;
| | - Vladislav Vasilyev
- National Computational Infrastructure, Australian National University, Canberra, ACT 0200, Australia;
| | - Andrew H. A. Clayton
- Optical Sciences Centre, Department of Physics and Astronomy, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, VIC 3122, Australia
| | - Feng Wang
- Department of Chemistry and Biotechnology, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, VIC 3122, Australia;
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2
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Pesek S, Silaghi-Dumitrescu R. The Iodine/Iodide/Starch Supramolecular Complex. Molecules 2024; 29:641. [PMID: 38338385 PMCID: PMC10856212 DOI: 10.3390/molecules29030641] [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: 08/15/2023] [Revised: 01/21/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
The nature of the blue color in the iodine-starch reaction (or, in most cases, iodine-iodide-starch reaction, i.e., I2 as well as I- are typically present) has for decades elicited debate. The intensity of the color suggests a clear charge-transfer nature of the band at ~600 nm, and there is consensus regarding the fact that the hydrophobic interior of the amylose helix is the location where iodine binds. Three types of possible sources of charge transfer have been proposed: (1) chains of neutral I2 molecules, (2) chains of poly-iodine anions (complicated by the complex speciation of the I2-I- mixture), or (3) mixtures of I2 molecules and iodide or polyiodide anions. An extended literature review of the topic is provided here. According to the most recent data, the best candidate for the "blue complex" is an I2-I5--I2 unit, which is expected to occur in a repetitive manner inside the amylose helix.
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Affiliation(s)
| | - Radu Silaghi-Dumitrescu
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos Street, 400028 Cluj-Napoca, Romania;
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3
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Morera-Boado C, Bernal-Uruchurtu MI. Interaction energy of Cl 2 and Br 2 with H 2 O: Exchange, dispersion and density the crucial ingredients. J Comput Chem 2023; 44:1073-1087. [PMID: 36578228 DOI: 10.1002/jcc.27066] [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: 03/23/2022] [Revised: 11/10/2022] [Accepted: 12/18/2022] [Indexed: 12/30/2022]
Abstract
Modern Density Functional Theory models are now suitable for many molecular and condensed phase studies. The study of noncovalent interactions, a well-known drawback, is no longer an insurmountable obstacle through design and empirical corrections. However, using empirical corrections as in the DFT-D methods might not be an all-in-one solution. This work uses a simple system, X2 -H2 O with X = Cl or Br, with two different interactions, halogen-bonded (XB) and hydrogen-halogen (HX), to investigate the capability of current density functional approximations (DFA) in predicting interaction energies with eight different exchange-correlation functionals. SAPT(DFT) provides, for all the studied cases, better predictions than the widely used supermolecular approach. In addition, the components of the interaction energy suggest where some of the shortcomings originate in each DFA. The analysis of the functionals used confirms that PBE0 and ω-B97X-D have a physically correct behavior. Using SAPT(DFT) and PBE0, and ω-B97X-D, we obtained the interaction energy of Cl2 and Br2 inside different clathrate cages and satisfactorily compared with wavefunction results; hence, the lower and upper limits of this value are defined: Cl2 @512 , -5.3 ± 0.3 kcal/mol; Cl2 @512 62 , -5.5 ± 0.1 kcal/mol; Br2 @512 62 , -7.6 ± 1.0 kcal/mol; Br2 @512 63 , -10.6 ± 1.0 kcal/mol; Br2 @512 64 , -10.9 ± 0.8 kcal/mol.
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Affiliation(s)
- Cercis Morera-Boado
- CONACYT - Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Mexico.,Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
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4
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Grabowski SJ. Halogen bonds with carbenes acting as Lewis base units: complexes of imidazol-2-ylidene: theoretical analysis and experimental evidence. Phys Chem Chem Phys 2023; 25:9636-9647. [PMID: 36943198 DOI: 10.1039/d3cp00348e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
ωB97XD/aug-cc-pVDZ and ωB97XD/aug-cc-pVTZ calculations were performed on complexes of imidazol-2-ylidene that are linked by halogen bonds. This singlet carbene acts as the Lewis base through a lone electron pair located at the carbon centre. The XCCH, XCN and X2 units were chosen here as those that interact through the X Lewis acid halogen centre (X = Cl, Br and I); if X = F the complexes are linked by interactions which are not classified as halogen bonds. The properties of interactions that occur in complexes are analyzed using the results of DFT calculations which are supported by parameters derived from the Quantum Theory of Atoms in Molecules, QTAIM, and the Natural Bond Orbital, NBO, approaches. The energy decomposition analysis, EDA, applied here provided additional characteristics of interactions linking complexes analyzed. The majority of complexes are linked by the medium in strength and strong halogen bonds which often possess characteristics typical for covalent bonds. Searches through the Cambridge Structural Database were also performed and structures analogues to complexes analyzed theoretically were found, and these structures are also discussed in this study.
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Affiliation(s)
- Sławomir J Grabowski
- Faculty of Chemistry, University of the Basque Country and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Spain
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain.
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5
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Ochoa-Resendiz D, Gamboa-Suárez A, Hernández-Lamoneda R. Halogen bonding and rotational disorder in chlorine clathrate hydrate cages. J Chem Phys 2022; 156:124302. [DOI: 10.1063/5.0082604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a detailed theoretical characterization of the structure and interactions in dichlorine clathrate hydrate cages. In the case of the dodecahedral cage there is clear evidence of the presence of halogen bonding whereas in the tetrakaidecahedral the expected signatures are there but in a weaker form. Comparison is made with the available structural data from X-ray experiments, where the rotational motion of the dichlorine has been taken into account through Monte Carlo simulations illustrating delocalization effects associated with sampling multiple minima, specifically for the larger cage. Finally, the intermolecular potentials have been calculated with local correlation methods and energy decomposition analysis has been applied to shed light on the nature of the interactions.
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6
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Formation and Structure of Iodine: Water (H2O-I2) charge-transfer complex. J CHEM SCI 2021. [DOI: 10.1007/s12039-021-01912-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Morera-Boado C, Gamboa-Suárez A, Bernal-Uruchurtu MI, Hernandez-Lamoneda R. Density Functional Study on the Fundamental and Valence Excited States of Dibromine in T, P, and H Clathrate Cages. J Phys Chem A 2020; 124:7692-7709. [DOI: 10.1021/acs.jpca.0c05360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cercis Morera-Boado
- CONACYT-Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Cuernavaca 62209, Morelos, México
| | - Antonio Gamboa-Suárez
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Cuernavaca 62209, Morelos, México
| | - Margarita I. Bernal-Uruchurtu
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Cuernavaca 62209, Morelos, México
| | - Ramón Hernandez-Lamoneda
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Cuernavaca 62209, Morelos, México
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8
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Clathrate III (Bromine Hydrate): Structural Relationship with Clathrate I. Chemphyschem 2020; 21:1587-1596. [DOI: 10.1002/cphc.202000195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/20/2020] [Indexed: 11/07/2022]
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9
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Yao F, Gong N, Fang W, Men Z. Spectroscopic evidence of a particular intermolecular interaction in iodomethane–ethanol mixtures: the cooperative effect of halogen bonding, hydrogen bonding, and the solvent effect. Phys Chem Chem Phys 2020; 22:5702-5710. [DOI: 10.1039/c9cp05886a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The particular intermolecular interaction of an iodomethane–ethanol mixture is revealed by NIR, Raman, DFT calculation, and 2D correlation analysis.
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Affiliation(s)
- Fei Yao
- School of Science, Changchun University of Science and Technology
- Changchun
- China
| | - Nan Gong
- Coherent Light and Atomic and Molecular Spectroscopy Laboratory
- College of Physics
- Jilin University
- Changchun 130012
- China
| | - Wenhui Fang
- School of Science, Changchun University of Science and Technology
- Changchun
- China
| | - Zhiwei Men
- Coherent Light and Atomic and Molecular Spectroscopy Laboratory
- College of Physics
- Jilin University
- Changchun 130012
- China
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10
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Pirani F, Cappelletti D, Falcinelli S, Cesario D, Nunzi F, Belpassi L, Tarantelli F. Selective Emergence of the Halogen Bond in Ground and Excited States of Noble‐Gas–Chlorine Systems. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812889] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fernando Pirani
- Dipartimento di Chimica, Biologia e BiotecnologieUniversità degli Studi di Perugia via Elce di Sotto 8 06213 Perugia Italy
| | - David Cappelletti
- Dipartimento di Chimica, Biologia e BiotecnologieUniversità degli Studi di Perugia via Elce di Sotto 8 06213 Perugia Italy
| | - Stefano Falcinelli
- Dipartimento di Ingegneria Civile ed AmbientaleUniversità degli Studi di Perugia via G. Duranti 93 06215 Perugia Italy
| | - Diego Cesario
- Dipartimento di Chimica, Biologia e BiotecnologieUniversità degli Studi di Perugia via Elce di Sotto 8 06213 Perugia Italy
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Center for Multiscale ModelingVrije Universiteit Amsterdam De Boelelaan 1083 1081 HV Amsterdam The Netherlands
| | - Francesca Nunzi
- Dipartimento di Chimica, Biologia e BiotecnologieUniversità degli Studi di Perugia via Elce di Sotto 8 06213 Perugia Italy
- Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR) via Elce di Sotto 8 06123 Perugia Italy
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR) via Elce di Sotto 8 06123 Perugia Italy
| | - Francesco Tarantelli
- Dipartimento di Chimica, Biologia e BiotecnologieUniversità degli Studi di Perugia via Elce di Sotto 8 06213 Perugia Italy
- Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR) via Elce di Sotto 8 06123 Perugia Italy
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11
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Pirani F, Cappelletti D, Falcinelli S, Cesario D, Nunzi F, Belpassi L, Tarantelli F. Selective Emergence of the Halogen Bond in Ground and Excited States of Noble-Gas-Chlorine Systems. Angew Chem Int Ed Engl 2019; 58:4195-4199. [PMID: 30701641 DOI: 10.1002/anie.201812889] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/10/2019] [Indexed: 11/07/2022]
Abstract
Molecular-beam scattering experiments and theoretical calculations prove the nature, strength, and selectivity of the halogen bonds (XB) in the interaction of halogen molecules with the series of noble gas (Ng) atoms. The XB, accompanied by charge transfer from the Ng to the halogen, is shown to take place in, and measurably stabilize, the collinear conformation of the adducts, which thus becomes (in contrast to what happens for other Ng-molecule systems) approximately as bound as the T-shaped form. It is also shown how and why XB is inhibited when the halogen molecule is in the 3 Πu excited state. A general potential formulation fitting the experimental observables, based on few physically essential parameters, is proposed to describe the interaction accurately and is validated by ab initio computations.
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Affiliation(s)
- Fernando Pirani
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06213, Perugia, Italy
| | - David Cappelletti
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06213, Perugia, Italy
| | - Stefano Falcinelli
- Dipartimento di Ingegneria Civile ed Ambientale, Università degli Studi di Perugia, via G. Duranti 93, 06215, Perugia, Italy
| | - Diego Cesario
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06213, Perugia, Italy.,Department of Chemistry and Pharmaceutical Sciences and Amsterdam Center for Multiscale Modeling, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081, HV, Amsterdam, The Netherlands
| | - Francesca Nunzi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06213, Perugia, Italy.,Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR), via Elce di Sotto 8, 06123, Perugia, Italy
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR), via Elce di Sotto 8, 06123, Perugia, Italy
| | - Francesco Tarantelli
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06213, Perugia, Italy.,Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR), via Elce di Sotto 8, 06123, Perugia, Italy
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12
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Guevara-Vela JM, Ochoa-Resendiz D, Costales A, Hernández-Lamoneda R, Martín Pendás Á. Halogen Bonds in Clathrate Cages: A Real Space Perspective. Chemphyschem 2018; 19:2512-2517. [DOI: 10.1002/cphc.201800474] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Indexed: 11/08/2022]
Affiliation(s)
| | - David Ochoa-Resendiz
- Centro de Investigaciones Químicas; Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca; 62209 Morelos México
- Instituto Tecnológico de Zacatepec; Calz. Tecnológico 27 Zacatepec 62780 Morelos México
| | - Aurora Costales
- Departament of Analytical and Physical Chemistry; University of Oviedo; E-33006 Oviedo Spain
| | - Ramón Hernández-Lamoneda
- Centro de Investigaciones Químicas; Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca; 62209 Morelos México
| | - Ángel Martín Pendás
- Departament of Analytical and Physical Chemistry; University of Oviedo; E-33006 Oviedo Spain
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13
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Batista-Romero FA, Pajón-Suárez P, Roncero O, Hernández-Lamoneda R. Nature of the guest-host interactions for dibromine in the T, P, and H clathrate cages. J Chem Phys 2017; 147:154301. [DOI: 10.1063/1.4993465] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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14
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Batista-Romero FA, Gamboa-Suárez A, Hernández-Lamoneda R, Janda KC. Nature of the valence excited states of bromine in the T and P clathrate cages. J Chem Phys 2017; 146:144311. [DOI: 10.1063/1.4979909] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Fidel A. Batista-Romero
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Ave. Universidad 1001, Cuernavaca 62209 Morelos, Mexico
| | - Antonio Gamboa-Suárez
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Ave. Universidad 1001, Cuernavaca 62209 Morelos, Mexico
| | - Ramón Hernández-Lamoneda
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Ave. Universidad 1001, Cuernavaca 62209 Morelos, Mexico
| | - Kenneth C. Janda
- Department of Chemistry, University of California, Irvine, California 92697, USA
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15
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Babu R, Bhargavi G, Rajasekharan MV. Reaction of Copper Halides with Dafone and Halogens – Magnetic Exchange in Dibromine Linked Chains of Cu(dafone)
2
X
2. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700055] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ramavath Babu
- School of Chemistry University of Hyderabad 500046 Hyderabad India
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16
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Alcaraz-Torres A, Gamboa-Suárez A, Bernal-Uruchurtu MI. Is Br2 hydration hydrophobic? J Chem Phys 2017; 146:084501. [DOI: 10.1063/1.4975688] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A. Alcaraz-Torres
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Cuernavaca, Morelos 62209,
México
| | - A. Gamboa-Suárez
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Cuernavaca, Morelos 62209,
México
| | - M. I. Bernal-Uruchurtu
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Cuernavaca, Morelos 62209,
México
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17
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Bhattacharyya PK. B-Hb⋯π interactions in benzene–borazine sandwich and multidecker complexes: a DFT study. NEW J CHEM 2017. [DOI: 10.1039/c6nj03545k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Multidecker complexes of benzene/borazine can be formed through B-Hb⋯π interactions.
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18
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Dureckova H, Woo TK, Udachin KA, Ripmeester JA, Alavi S. The anomalous halogen bonding interactions between chlorine and bromine with water in clathrate hydrates. Faraday Discuss 2017; 203:61-77. [DOI: 10.1039/c7fd00064b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Clathrate hydrate phases of Cl2 and Br2 guest molecules have been known for about 200 years. The crystal structure of these phases was recently re-determined with high accuracy by single crystal X-ray diffraction. In these structures, the water oxygen–halogen atom distances are determined to be shorter than the sum of the van der Waals radii, which indicates the action of some type of non-covalent interaction between the dihalogens and water molecules. Given that in the hydrate phases both lone pairs of each water oxygen atom are engaged in hydrogen bonding with other water molecules of the lattice, the nature of the oxygen–halogen interactions may not be the standard halogen bonds characterized recently in the solid state materials and enzyme–substrate compounds. The nature of the halogen–water interactions for the Cl2 and Br2 molecules in two isolated clathrate hydrate cages has recently been studied with ab initio calculations and Natural Bond Order analysis (Ochoa-Resendiz et al. J. Chem. Phys. 2016, 145, 161104). Here we present the results of ab initio calculations and natural localized molecular orbital analysis for Cl2 and Br2 guests in all cage types observed in the cubic structure I and tetragonal structure I clathrate hydrates to characterize the orbital interactions between the dihalogen guests and water. Calculations with isolated cages and cages with one shell of coordinating molecules are considered. The computational analysis is used to understand the nature of the halogen bonding in these materials and to interpret the guest positions in the hydrate cages obtained from the X-ray crystal structures.
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Affiliation(s)
| | - Tom K. Woo
- Department of Chemistry
- University of Ottawa
- Ottawa
- Canada
| | | | - John A. Ripmeester
- National Research Council Canada
- Ottawa
- Canada
- Department of Chemical and Biological Engineering
- University of British Columbia
| | - Saman Alavi
- Department of Chemistry
- University of Ottawa
- Ottawa
- Canada
- National Research Council Canada
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19
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Sharma H, Bhattacharyya PK. Association of phenyldiboronic acids with hydrogen bond acceptors to form hydrogen bonded DD·AA-type complexes: a DFT study. NEW J CHEM 2017. [DOI: 10.1039/c7nj01739a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
DD·AA-type complexes of phenyldiboronic acids.
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20
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Ochoa-Resendiz D, Batista-Romero FA, Hernández-Lamoneda R. Communication: Evidence of halogen bonds in clathrate cages. J Chem Phys 2016; 145:161104. [DOI: 10.1063/1.4966644] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- David Ochoa-Resendiz
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca 62209, Morelos, México
- Instituto Tecnológico de Zacatepec, Calz. Tecnológico 27 Zacatepec 62780, Morelos, México
| | - Fidel A. Batista-Romero
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca 62209, Morelos, México
- Instituto Superior de Tecnologías y Ciencias Aplicadas, Av. Salvador Allende y Luaces, La Habana 10600, Cuba
| | - Ramón Hernández-Lamoneda
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca 62209, Morelos, México
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21
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Suponitsky KY, Burakov NI, Kanibolotsky AL, Mikhailov VA. Multiple Noncovalent Bonding in Halogen Complexes with Oxygen Organics. I. Tertiary Amides. J Phys Chem A 2016; 120:4179-90. [PMID: 27228362 DOI: 10.1021/acs.jpca.6b02192] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The present work describes the structure and binding of adducts of N,N'-diacetylpiperazine with halogens and interhalogens based on combination of different experimental methods and quantum chemical calculations. On the basis of conductometric and spectro-photometric experimental results, behavior of complexes in the acetonitrile solution was described. The iodine adduct with N,N'-diacetylpiperazine fully degrades into components. Adducts of interhalogens I-X (X = Cl or Br) with N,N'-diacetylpiperazine in acetonitrile partially dissociate to anionic [X-I-X](-) and cationic species. In the solid state, molecules are connected via C═O···I, C-H···I, and Cl···Cl attractive interactions. N,N'-diacetylpiperazine···dihalogen complex is stabilized by simultaneous C═O···I and C-H···I interactions. Such binding mode allows to explain the problems of the direct halogenation of acetyl-containing compounds with molecular halogens as reagents. We believe that the observed binding pattern can be used as prototypical for future design of halogeno complexes.
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Affiliation(s)
- Kyrill Yu Suponitsky
- X-ray Structural Centre, A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , 28 Vavilov Street, Moscow 119991, Russia
| | - N I Burakov
- L. M. Litvinenko Institute of Physical Organic and Coal Chemistry , R. Luxemburg Street 70, 83114 Donetsk, Ukraine
| | - Alexander L Kanibolotsky
- L. M. Litvinenko Institute of Physical Organic and Coal Chemistry , R. Luxemburg Street 70, 83114 Donetsk, Ukraine.,WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde , 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
| | - Vasilii A Mikhailov
- L. M. Litvinenko Institute of Physical Organic and Coal Chemistry , R. Luxemburg Street 70, 83114 Donetsk, Ukraine
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22
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Franklin-Mergarejo R, Rubayo-Soneira J, Halberstadt N, Janda KC, Apkarian VA. A theoretical simulation of the resonant Raman spectroscopy of the H2O⋯Cl2 and H2O⋯Br2 halogen-bonded complexes. J Chem Phys 2016; 144:054307. [DOI: 10.1063/1.4940778] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ricardo Franklin-Mergarejo
- Université de Toulouse, UPS, Laboratoire Collisions Agrégats Réactivité, IRSAMC, F-31062 Toulouse, France
- CNRS, UMR 5589, F-31062 Toulouse, France
- InSTEC, Quinta de los Molinos, Ave. Salvador Allende y Luaces, Plaza, Ciudad Habana, Cuba
| | - Jesús Rubayo-Soneira
- InSTEC, Quinta de los Molinos, Ave. Salvador Allende y Luaces, Plaza, Ciudad Habana, Cuba
| | - Nadine Halberstadt
- Université de Toulouse, UPS, Laboratoire Collisions Agrégats Réactivité, IRSAMC, F-31062 Toulouse, France
- CNRS, UMR 5589, F-31062 Toulouse, France
| | - Kenneth C. Janda
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, USA
| | - V. Ara Apkarian
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, USA
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23
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Šebestík J, Kapitán J, Pačes O, Bouř P. Diamagnetic Raman Optical Activity of Chlorine, Bromine, and Iodine Gases. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Jaroslav Šebestík
- Biomolecular Spectroscopy; Institute of Organic Chemistry and Biochemistry; Flemingovo náměstí 2 16610 Prague Czech Republic
| | - Josef Kapitán
- Department of Optics; Palacký University; 17. listopadu 12 77146 Olomouc Czech Republic
| | - Ondřej Pačes
- Biomolecular Spectroscopy; Institute of Organic Chemistry and Biochemistry; Flemingovo náměstí 2 16610 Prague Czech Republic
| | - Petr Bouř
- Biomolecular Spectroscopy; Institute of Organic Chemistry and Biochemistry; Flemingovo náměstí 2 16610 Prague Czech Republic
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24
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Šebestík J, Kapitán J, Pačes O, Bouř P. Diamagnetic Raman Optical Activity of Chlorine, Bromine, and Iodine Gases. Angew Chem Int Ed Engl 2016; 55:3504-8. [PMID: 26845382 DOI: 10.1002/anie.201600058] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Indexed: 01/23/2023]
Abstract
Magnetic Raman optical activity of gases provides unique information about their electric and magnetic properties. Magnetic Raman optical activity has recently been observed in a paramagnetic gas (Angew. Chem. Int. Ed. 2012, 51, 11058; Angew. Chem. 2012, 124, 11220). In diamagnetic molecules, it has been considered too weak to be measurable. However, in chlorine, bromine and iodine vapors, we could detect a significant signal as well. Zeeman splitting of electronic ground-state energy levels cannot rationalize the observed circular intensity difference (CID) values of about 10(-4). These are explicable by participation of paramagnetic excited electronic states. Then a simple model including one electronic excited state provides reasonable spectral intensities. The results suggest that this kind of scattering by diamagnetic molecules is a general event observable under resonance conditions. The phenomenon sheds new light on the role of excited states in the Raman scattering, and may be used to probe molecular geometry and electronic structure.
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Affiliation(s)
- Jaroslav Šebestík
- Biomolecular Spectroscopy, Institute of Organic Chemistry and Biochemistry, Flemingovo náměstí 2, 16610, Prague, Czech Republic
| | - Josef Kapitán
- Department of Optics, Palacký University, 17. listopadu 12, 77146, Olomouc, Czech Republic
| | - Ondřej Pačes
- Biomolecular Spectroscopy, Institute of Organic Chemistry and Biochemistry, Flemingovo náměstí 2, 16610, Prague, Czech Republic
| | - Petr Bouř
- Biomolecular Spectroscopy, Institute of Organic Chemistry and Biochemistry, Flemingovo náměstí 2, 16610, Prague, Czech Republic.
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25
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Sarma D, Saha B, Chandra Deka B, Bhattacharyya PK. Unique cation–cyclohexane interactions in tri- and hexa-fluorocyclohexane multidecker complexes in the gas phase: a DFT study. RSC Adv 2016. [DOI: 10.1039/c6ra24508k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The formation of stable sandwich and multidecker complexes through electrostatic interaction in tri- and hexa-fluorocyclohexane has been analyzed in the light of density functional theory.
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Affiliation(s)
| | - Bapan Saha
- Department of Chemistry
- Arya Vidyapeeth College
- Guwahati
- India
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26
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van den Ham EJ, Elen K, Kokal I, Yağci B, Peys N, Bonneux G, Ulu F, Marchal W, Van Bael MK, Hardy A. From liquid to thin film: colloidal suspensions for tungsten oxide as an electrode material for Li-ion batteries. RSC Adv 2016. [DOI: 10.1039/c6ra08769h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Using a colloidal suspension, electrochemically active tungsten oxide thin films (150 nm) have been prepared via ultrasonic spray deposition using two different current collectors, namely TiN and Pt.
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27
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Batista-Romero FA, Pajón-Suárez P, Bernal-Uruchurtu MI, Hernández-Lamoneda R. Performance of local correlation methods for halogen bonding: The case of Br2-(H2O)n,n = 4,5 clusters and Br2@5(12)6(2) clathrate cage. J Chem Phys 2015; 143:094305. [PMID: 26342368 DOI: 10.1063/1.4929908] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The performance of local correlation methods is examined for the interactions present in clusters of bromine with water where the combined effect of hydrogen bonding (HB), halogen bonding (XB), and hydrogen-halogen (HX) interactions lead to many interesting properties. Local methods reproduce all the subtleties involved such as many-body effects and dispersion contributions provided that specific methodological steps are followed. Additionally, they predict optimized geometries that are nearly free of basis set superposition error that lead to improved estimates of spectroscopic properties. Taking advantage of the local correlation energy partitioning scheme, we compare the different interaction environments present in small clusters and those inside the 5(12)6(2) clathrate cage. This analysis allows a clear identification of the reasons supporting the use of local methods for large systems where non-covalent interactions play a key role.
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Affiliation(s)
- Fidel A Batista-Romero
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos 62209, Mexico
| | - Pedro Pajón-Suárez
- Instituto Superior de Tecnologías y Ciencias Aplicadas (InSTEC), Habana 6163, Cuba
| | - Margarita I Bernal-Uruchurtu
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos 62209, Mexico
| | - Ramón Hernández-Lamoneda
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos 62209, Mexico
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28
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Hormain L, Monnerville M, Toubin C, Duflot D, Pouilly B, Briquez S, Bernal-Uruchurtu MI, Hernández-Lamoneda R. Ground state analytical ab initio intermolecular potential for the Cl 2-water system. J Chem Phys 2015; 142:144310. [DOI: 10.1063/1.4917028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Zierkiewicz W, Bieńko DC, Michalska D, Zeegers-Huyskens T. Theoretical investigation of the halogen bonded complexes between carbonyl bases and molecular chlorine. J Comput Chem 2015; 36:821-32. [DOI: 10.1002/jcc.23860] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/23/2015] [Accepted: 01/25/2015] [Indexed: 01/04/2023]
Affiliation(s)
- Wiktor Zierkiewicz
- Department of Chemistry; Wrocław University of Technology; Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Dariusz C. Bieńko
- Department of Chemistry; Wrocław University of Technology; Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Danuta Michalska
- Department of Chemistry; Wrocław University of Technology; Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
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30
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Middendorf N, Krause K, Höfener S. Solvatochromic shifts of Br2and I2in water cages of type 512, 51262, 51263, and 51264. J Comput Chem 2015; 36:853-60. [DOI: 10.1002/jcc.23863] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 01/16/2015] [Accepted: 01/17/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Nils Middendorf
- Institut für Physikalische Chemie, Fakultät für Chemie und Biowissenschaften, Karlsruher Institut für Technologie (KIT); D-76131 Karlsruhe Germany
| | - Katharina Krause
- Institut für Physikalische Chemie, Fakultät für Chemie und Biowissenschaften, Karlsruher Institut für Technologie (KIT); D-76131 Karlsruhe Germany
| | - Sebastian Höfener
- Institut für Physikalische Chemie, Fakultät für Chemie und Biowissenschaften, Karlsruher Institut für Technologie (KIT); D-76131 Karlsruhe Germany
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31
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Bernal-Uruchurtu MI, Janda KC, Hernández-Lamoneda R. Motion of Br2 molecules in clathrate cages. A computational study of the dynamic effects on its spectroscopic behavior. J Phys Chem A 2015; 119:452-9. [PMID: 25531916 DOI: 10.1021/jp5082092] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This work looks into the spectroscopic behavior of bromine molecules trapped in clathrate cages combining different methodologies. We developed a semiempirical quantum mechanical model to incorporate through molecular dynamics trajectories, the effect movement of bromine molecules in clathrate cages has on its absorption spectra. A simple electrostatic model simulating the cage environment around bromine predicts a blue shift in the spectra, in good agreement with the experimental evidence.
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Affiliation(s)
- M I Bernal-Uruchurtu
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos Av. Universidad 1001, Cuernavaca 62209, Morelos, México
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32
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Sutradhar D, Chandra AK, Zeegers-Huyskens T. A theoretical investigation of the interaction between fluorinated dimethyl ethers and molecular chlorine. Mol Phys 2014. [DOI: 10.1080/00268976.2014.911984] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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33
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Nguyen AH, Molinero V. Cross-nucleation between clathrate hydrate polymorphs: Assessing the role of stability, growth rate, and structure matching. J Chem Phys 2014; 140:084506. [DOI: 10.1063/1.4866143] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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34
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Goldschleger IU, van Staveren MN, Ara Apkarian V. Quantum tomography of a molecular bond in ice. J Chem Phys 2013; 139:034201. [DOI: 10.1063/1.4813437] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- I. U. Goldschleger
- Department of Chemistry, University of California, Irvine, California 92697-2025, USA
| | - M. N. van Staveren
- Department of Chemistry, University of California, Irvine, California 92697-2025, USA
| | - V. Ara Apkarian
- Department of Chemistry, University of California, Irvine, California 92697-2025, USA
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35
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Nguyen AH, Molinero V. Stability and Metastability of Bromine Clathrate Polymorphs. J Phys Chem B 2013; 117:6330-8. [DOI: 10.1021/jp403503d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrew H. Nguyen
- Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850,
United States
| | - Valeria Molinero
- Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850,
United States
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36
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Santoyo-Flores JJ, Cedillo A, Bernal-Uruchurtu MI. Br2 dissociation in water clusters: the catalytic role of water. Theor Chem Acc 2012. [DOI: 10.1007/s00214-012-1313-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Pathak AK. Normal modes for probing the local solvation environment of nitrate anion during step wise hydration: A theoretical study. Chem Phys 2012. [DOI: 10.1016/j.chemphys.2012.02.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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38
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Tian W, Shi W, Yang H, Cui R, Deng L. Production of singlet oxygen by the reaction of non-basic hydrogen peroxide with chlorine gas. Phys Chem Chem Phys 2012; 14:13344-9. [DOI: 10.1039/c2cp41690e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Branigan ET, Halberstadt N, Apkarian VA. Solvation dynamics through Raman spectroscopy: hydration of Br2 and Br3(-), and solvation of Br2 in liquid bromine. J Chem Phys 2011; 134:174503. [PMID: 21548695 DOI: 10.1063/1.3583477] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Raman spectroscopy of bromine in the liquid phase and in water illustrates uncommon principles and yields insights regarding hydration. In liquid Br(2), resonant excitation over the B((3)Π(0u)(+)) ← X((1)Σ(g)(+)) valence transition at 532 nm produces a weak resonant Raman (RR) progression accompanied by a five-fold stronger non-resonant (NR) scattering. The latter is assigned to pre-resonance with the C-state, which in turn must be strongly mixed with inter-molecular charge transfer states. Despite the electronic resonance, RR of Br(2) in water is quenched. At 532 nm, the homogeneously broadened fundamental is observed, as in the NR case at 785 nm. The implications of the quenching of RR scattering are analyzed in a simple, semi-quantitative model, to conclude that the inertial evolution of the Raman packet in aqueous Br(2) occurs along multiple equivalent water-Br(2) coordinates. In distinct contrast with hydrophilic hydration in small clusters and hydrophobic hydration in clathrates, it is concluded that the hydration shell of bromine in water consists of dynamically equivalent fluxional water molecules. At 405 nm, the RR progression of Br(3)(-) is observed, accompanied by difference transitions between the breathing of the hydration shell and the symmetric stretch of the ion. The RR scattering process in this case can be regarded as the coherent photo-induced electron transfer to the solvent and its radiative back-transfer.
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Affiliation(s)
- Edward T Branigan
- Department of Chemistry, University of California, Irvine, California 92697-2025, USA
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40
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Franklin-Mergarejo R, Rubayo-Soneira J, Halberstadt N, Ayed T, Bernal-Uruchurtu MI, Hernández-Lamoneda R, Janda KC. Large Shift and Small Broadening of Br2 Valence Band upon Dimer Formation with H2O: An Ab Initio Study. J Phys Chem A 2011; 115:5983-91. [DOI: 10.1021/jp110389z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ricardo Franklin-Mergarejo
- Instituto Superior de Tecnologías y Ciencias Aplicadas, Ave. Salvador Allende y Luaces, Quinta de los Molinos, Plaza, Habana 10600, Aptdo. Postal 6163, Ciudad Habana, Cuba
- Université de Toulouse, UPS, Laboratoire Collisions Agrégats Réactivité, IRSAMC, F-31062 Toulouse, France
- CNRS, UMR 5589, F-31062 Toulouse, France
| | - Jesus Rubayo-Soneira
- Instituto Superior de Tecnologías y Ciencias Aplicadas, Ave. Salvador Allende y Luaces, Quinta de los Molinos, Plaza, Habana 10600, Aptdo. Postal 6163, Ciudad Habana, Cuba
| | - Nadine Halberstadt
- Université de Toulouse, UPS, Laboratoire Collisions Agrégats Réactivité, IRSAMC, F-31062 Toulouse, France
- CNRS, UMR 5589, F-31062 Toulouse, France
| | - Tahra Ayed
- Centro de Investigaciones Químicas, UAEM, Cuernavaca, Mor. 62209, México
| | | | | | - Kenneth C. Janda
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
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41
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Casterline BE, Mollner AK, Ch’ng LC, Reisler H. Imaging the State-Specific Vibrational Predissociation of the Hydrogen Chloride−Water Hydrogen-Bonded Dimer. J Phys Chem A 2010; 114:9774-81. [DOI: 10.1021/jp102532m] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Blithe E. Casterline
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-0482
| | - Andrew K. Mollner
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-0482
| | - Lee C. Ch’ng
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-0482
| | - Hanna Reisler
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-0482
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42
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Ravinder P, Subramanian V. Substitution Effects of Diborane on the Interaction with Borazine (Inorganic Benzene). J Phys Chem A 2010; 114:5565-72. [DOI: 10.1021/jp910717j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- P. Ravinder
- Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai 600 020, India
| | - V. Subramanian
- Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai 600 020, India
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