1
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Removal of bromothymol blue dye by the oxidation method using KMnO4: Accelerating the oxidation reaction by Ru (III) catalyst. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2
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Tatini D, Anselmi E, Cabrucci G, Acar M, Ninham BW, Lo Nostro P. Ionochromism, solvatochromism and effect of dissolved gases on the spectral properties of bromothymol blue. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Zhou H, Sheng X, Ding Z, Chen X, Zhang X, Feng X, Jiang L. Liquid–Liquid–Solid Triphase Interface Microenvironment Mediates Efficient Photocatalysis. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hang Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou215123, P. R. China
| | - Xia Sheng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou215123, P. R. China
| | - Zhenyao Ding
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou215123, P. R. China
| | - Xi Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou215123, P. R. China
| | - Xiqi Zhang
- Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing100190, P. R. China
| | - Xinjian Feng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou215123, P. R. China
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing100190, P. R. China
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4
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Ryazantsev MN, Strashkov DM, Nikolaev DM, Shtyrov AA, Panov MS. Photopharmacological compounds based on azobenzenes and azoheteroarenes: principles of molecular design, molecular modelling, and synthesis. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr5001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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5
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Titov E, Hummert J, Ikonnikov E, Mitrić R, Kornilov O. Electronic relaxation of aqueous aminoazobenzenes studied by time-resolved photoelectron spectroscopy and surface hopping TDDFT dynamics calculations. Faraday Discuss 2021; 228:226-241. [PMID: 33586720 DOI: 10.1039/d0fd00111b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Studies of ultrafast relaxation of molecular chromophores are complicated by the fact that most chromophores of biological and technological importance are rather large molecules and are strongly affected by their environment, either solvent or a protein cage. Here we present an approach which allows us to follow transient electronic structure of complex photoexcited molecules. We use the method of time-resolved photoelectron spectroscopy in solution to follow relaxation of two prototypical aqueous chromophores, Methyl Orange and Metanil Yellow, both of which are aminoazobenzene derivatives. Using excitation by 400 nm laser pulses and ionization by wavelength-selected 46.7 nm XUV pulses from high-order harmonic generation we follow relaxation of both molecules via the dark S1 state. The photoelectron spectra yield binding energies of both ground and excited states. We combine the experimental results with surface hopping time-dependent density functional theory (TDDFT) calculations employing B3LYP+D3 and ωB97X-D functionals. The results demonstrate that the method is generally suitable for description of ultrafast dynamics in these molecules and can recover absolute binding energies observed in the experiment. The B3LYP+D3 functional appears to be better suited for these systems, especially in the case of Metanil Yellow, where it indicates the importance of an intramolecular charge transfer state. Our results pave the way towards quantitative understanding of evolving electronic structure in photo-induced relaxation processes.
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Affiliation(s)
- Evgenii Titov
- Institut für Physikalische und Theoretische Chemie, Julius-Maximilians-Universität Würzburg, Emil-Fischer-Straße 42, 97074 Würzburg, Germany.
| | - Johan Hummert
- Max Born Institute, Max-Born-Straße 2A, 12489 Berlin, Germany.
| | | | - Roland Mitrić
- Institut für Physikalische und Theoretische Chemie, Julius-Maximilians-Universität Würzburg, Emil-Fischer-Straße 42, 97074 Würzburg, Germany.
| | - Oleg Kornilov
- Max Born Institute, Max-Born-Straße 2A, 12489 Berlin, Germany.
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6
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Jung SY, Hwang H, Jo HS, Choi S, Kim HJ, Kim SE, Park K. Tannylated Calcium Carbonate Materials with Antacid, Anti-Inflammatory, and Antioxidant Effects. Int J Mol Sci 2021; 22:4614. [PMID: 33924775 PMCID: PMC8124724 DOI: 10.3390/ijms22094614] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 12/17/2022] Open
Abstract
Calcium carbonate (CaCO3)-based materials have received notable attention for biomedical applications owing to their safety and beneficial characteristics, such as pH sensitivity, carbon dioxide (CO2) gas generation, and antacid properties. Herein, to additionally incorporate antioxidant and anti-inflammatory functions, we prepared tannylated CaCO3 (TA-CaCO3) materials using a simple reaction between tannic acid (TA), calcium (Ca2+), and carbonate (CO32-) ions. TA-CaCO3 synthesized at a molar ratio of 1:75 (TA:calcium chloride (CaCl2)/sodium carbonate (Na2CO3)) showed 3-6 μm particles, comprising small nanoparticles in a size range of 17-41 nm. The TA-CaCO3 materials could efficiently neutralize the acid solution and scavenge free radicals. In addition, these materials could significantly reduce the mRNA levels of pro-inflammatory factors and intracellular reactive oxygen species, and protect chondrocytes from toxic hydrogen peroxide conditions. Thus, in addition to their antacid property, the prepared TA-CaCO3 materials exert excellent antioxidant and anti-inflammatory effects through the introduction of TA molecules. Therefore, TA-CaCO3 materials can potentially be used to treat inflammatory cells or diseases.
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Affiliation(s)
- Sung-Yun Jung
- Department of Systems Biotechnology, Chung-Ang University, Gyeonggi 17546, Korea; (S.-Y.J.); (H.H.); (H.-S.J.)
| | - Heamin Hwang
- Department of Systems Biotechnology, Chung-Ang University, Gyeonggi 17546, Korea; (S.-Y.J.); (H.H.); (H.-S.J.)
| | - Han-Saem Jo
- Department of Systems Biotechnology, Chung-Ang University, Gyeonggi 17546, Korea; (S.-Y.J.); (H.H.); (H.-S.J.)
| | - Somang Choi
- Department of Orthopedic Surgery and Nano-Based Disease Control Institute, Korea University Guro Hospital, #148, Gurodong-ro, Guro-gu, Seoul 08308, Korea; (S.C.); (H.-J.K.)
| | - Hak-Jun Kim
- Department of Orthopedic Surgery and Nano-Based Disease Control Institute, Korea University Guro Hospital, #148, Gurodong-ro, Guro-gu, Seoul 08308, Korea; (S.C.); (H.-J.K.)
| | - Sung-Eun Kim
- Department of Orthopedic Surgery and Nano-Based Disease Control Institute, Korea University Guro Hospital, #148, Gurodong-ro, Guro-gu, Seoul 08308, Korea; (S.C.); (H.-J.K.)
| | - Kyeongsoon Park
- Department of Systems Biotechnology, Chung-Ang University, Gyeonggi 17546, Korea; (S.-Y.J.); (H.H.); (H.-S.J.)
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7
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Synthesis of novel keto-bromothymol blue in different media using oxidation–reduction reactions: combined experimental and DFT-TDDFT computational studies. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01540-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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8
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Dos Santos GC, Roldao JC, Shi J, Milián-Medina B, da Silva-Filho LC, Gierschner J. Combined Spectroscopic and TD-DFT Analysis to Elucidate Substituent and Acidochromic Effects in Organic Dyes: A Case Study on Amino- versus Nitro-Substituted 2,4-Diphenylquinolines. Chemphyschem 2020; 21:1797-1804. [PMID: 32602989 DOI: 10.1002/cphc.202000452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/29/2020] [Indexed: 11/09/2022]
Abstract
A combined spectroscopic and TD-DFT case study was performed, to identify a robust method to calculate the complex near UV/Vis absorption spectra of various amino- vs. nitro-substituted 2,4-diphenylquinolines, which vary strongly under neutral and successively acidic conditions. For this, different DFT functionals were tested for geometry optimization and the TD part to calculate the neutral and different protonated species in a fast screening approach, i. e. using single point calculations in an implicit solvent. Offset-corrected M06HF, hitherto only applied to polymers, was identified as a suitable method to reproduce the absorption spectra in a reasonable fashion for all different substitution pattern and all different protonated species at different pH values; moreover, the method properly predicts the energetic ordering of low-lying n-π* and ππ* transitions, which is decisive for the non-/emissive nature of the different compounds. In all, this might provide a valuable tool for computer-aided design of related classes of compounds.
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Affiliation(s)
- Giovanny Carvalho Dos Santos
- Laboratory of Organic Synthesis and Processes (LOSP), São Paulo State University (UNESP), Department of Chemistry, School of Sciences, 17033-360, Bauru, São Paulo, Brazil.,IMDEA Nanociencia, Ciudad Universitaria de Cantoblanco, C/ Faraday 9, 28049, Madrid, Spain
| | - Juan Carlos Roldao
- IMDEA Nanociencia, Ciudad Universitaria de Cantoblanco, C/ Faraday 9, 28049, Madrid, Spain
| | - Junqing Shi
- IMDEA Nanociencia, Ciudad Universitaria de Cantoblanco, C/ Faraday 9, 28049, Madrid, Spain.,Xi'an Institute of Flexible Electronics, Northwestern Polytechnical University Dongda Town, Dongxiang Street 1, 710072, Xi'an, Shaanxi, China
| | - Begoña Milián-Medina
- Department for Physical Chemistry, Faculty of Chemistry, University of Valencia, Avenida Dr. Moliner 50, 46100, Burjassot, Valencia, Spain
| | - Luiz Carlos da Silva-Filho
- Laboratory of Organic Synthesis and Processes (LOSP), São Paulo State University (UNESP), Department of Chemistry, School of Sciences, 17033-360, Bauru, São Paulo, Brazil
| | - Johannes Gierschner
- IMDEA Nanociencia, Ciudad Universitaria de Cantoblanco, C/ Faraday 9, 28049, Madrid, Spain
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9
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Luo X, Lim LT. An inkjet-printed sulfonephthalein dye indicator array for volatile amine detection. J Food Sci 2020; 85:442-454. [PMID: 31976555 DOI: 10.1111/1750-3841.15020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/18/2019] [Accepted: 12/03/2019] [Indexed: 11/27/2022]
Abstract
Colorimetric indicators are versatile for applications such as intelligent food packaging, for reflecting the actual quality and/or monitoring distribution history of food products. In this study, a colorimetric indicator array composed of sulfonephthalein dyes was successfully developed by piezoelectric inkjet printing, for the detection of volatile amines-the primary spoilage gases for fish and seafood products. The printing inks were formulated in water/ethanol/1-butanol mixture. By refilling the printer's cartridges with our formulated inks and controlling the red, green, and blue color parameters, a 7 × 9 indicator array was printed onto inkjet transparency films. The color response of the indicator array was tested with different volatile amines at various concentrations. The array indicator was capable of discriminating six different volatile amines: ammonia, trimethylamine, dimethylamine, triethylamine, piperidine, and hydrazine. The printability of the inks was investigated by characterizing their density, surface tension, and dynamic viscosity, dictating that all formulated inks were printable fluid. The microstructural morphologies of the printed dyes on transparency films were evaluated using scanning electron microscopy. Interactions of the dye with the volatiles were studied by Fourier transform infrared spectroscopy. In summary, the piezoelectric inkjet printing method presented in this study offers a convenient, efficient, and flexible means to fabricate colorimetric indicators for detecting food spoilage volatiles. These indicators are promising as sensing components in intelligent packaging systems, to reveal the freshness of fish products by correlating with quality parameters such as total volatile basic nitrogen, microbial growth, and sensory attributes. Further studies on the feasibility of using the array indicators in real food packaging systems, development of strategy to mitigate the potential migration of the indicator dyes, and designing array patterns optimal for machine/human interpretation, are important to commercialize the technology. PRACTICAL APPLICATION: Piezoelectric inkjet printing offers a convenient way to fabricate sensing materials and aligns with industrial packaging operations. The use of indicators on food package helps consumers more accurately perceive real-time food quality information.
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Affiliation(s)
- Xiaoyu Luo
- Dept. of Food Science, Univ. of Guelph, 50 Stone Rd. E, Guelph, ON, N1G 2W1, Canada
| | - Loong-Tak Lim
- Dept. of Food Science, Univ. of Guelph, 50 Stone Rd. E, Guelph, ON, N1G 2W1, Canada
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10
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Wang Z, Zhang Y, Wang W, An Q, Tong W. High performance of colorimetric humidity sensors based on minerals. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.04.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Shimada T, Hasegawa T. Determination of equilibrium structures of bromothymol blue revealed by using quantum chemistry with an aid of multivariate analysis of electronic absorption spectra. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 185:104-110. [PMID: 28550814 DOI: 10.1016/j.saa.2017.05.040] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 05/17/2017] [Accepted: 05/18/2017] [Indexed: 05/27/2023]
Abstract
The pH dependent chemical structures of bromothymol blue (BTB), which have long been under controversy, are determined by employing a combined technique of multivariate analysis of electronic absorption spectra and quantum chemistry. Principle component analysis (PCA) of the pH dependent spectra apparently reveals that only two chemical species are adequate to fully account for the color changes, with which the spectral decomposition is readily performed by using augmented alternative least-squares (ALS) regression analysis. The quantity variation by the ALS analysis also reveals the practical acid dissociation constant, pKa'. The determination of pKa' is performed for various ionic strengths, which reveals the thermodynamic acid constant (pKa=7.5) and the number of charge on each chemical species; the yellow form is negatively charged species of -1 and the blue form that of -2. On this chemical information, the quantum chemical calculation is carried out to find that BTB molecules take the pure quinoid form in an acid solution and the quinoid-phenolate form in an alkaline solution. The time-dependent density functional theory (TD-DFT) calculations for the theoretically determined chemical structures account for the peak shift of the electronic spectra. In this manner, the structures of all the chemical species appeared in equilibrium have finally been confirmed.
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Affiliation(s)
- Toru Shimada
- Department of Science, Faculty of Education, Hirosaki University, Bunkyo-cho, Hirosaki, Aomori 036-8560, Japan.
| | - Takeshi Hasegawa
- Laboratory of Solution and Interface Chemistry, Division of Environmental Chemistry, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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12
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Banjac NR, Božić BĐ, Mirković JM, Vitnik VD, Vitnik ŽJ, Valentić NV, Ušćumlić GS. Experimental and theoretical study on the structure-property relationship of novel 1-aryl-3-methylsuccinimides. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.09.086] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Climent C, Carreras A, Alemany P, Casanova D. A push-pull organic dye with a quinoidal thiophene linker: Photophysical properties and solvent effects. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.09.054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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De Meyer T, Ensing B, Rogge SMJ, De Clerck K, Meijer EJ, Van Speybroeck V. Acidity Constant (pK a ) Calculation of Large Solvated Dye Molecules: Evaluation of Two Advanced Molecular Dynamics Methods. Chemphyschem 2016; 17:3447-3459. [PMID: 27570194 PMCID: PMC5129556 DOI: 10.1002/cphc.201600734] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Indexed: 11/14/2022]
Abstract
pH‐Sensitive dyes are increasingly applied on polymer substrates for the creation of novel sensor materials. Recently, these dye molecules were modified to form a covalent bond with the polymer host. This had a large influence on the pH‐sensitive properties, in particular on the acidity constant (pKa). Obtaining molecular control over the factors that influence the pKa value is mandatory for the future intelligent design of sensor materials. Herein, we show that advanced molecular dynamics (MD) methods have reached the level at which the pKa values of large solvated dye molecules can be predicted with high accuracy. Two MD methods were used in this work: steered or restrained MD and the insertion/deletion scheme. Both were first calibrated on a set of phenol derivatives and afterwards applied to the dye molecule bromothymol blue. Excellent agreement with experimental values was obtained, which opens perspectives for using these methods for designing dye molecules.
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Affiliation(s)
- Thierry De Meyer
- Center for Molecular Modeling, Ghent University, Technologiepark 903, 9052, Zwijnaarde, Belgium.,Department of Textiles, Ghent University, Technologiepark 907, 9052, Zwijnaarde, Belgium
| | - Bernd Ensing
- Amsterdam Center for Multiscale Modeling and Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098XH, Amsterdam, The Netherlands
| | - Sven M J Rogge
- Center for Molecular Modeling, Ghent University, Technologiepark 903, 9052, Zwijnaarde, Belgium
| | - Karen De Clerck
- Department of Textiles, Ghent University, Technologiepark 907, 9052, Zwijnaarde, Belgium
| | - Evert Jan Meijer
- Amsterdam Center for Multiscale Modeling and Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098XH, Amsterdam, The Netherlands
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15
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Bo C, Wang C, Wei Y. Novel bis(5-methyltetrazolium)amine ligand-bonded stationary phase with reduced leakage of metal ions in immobilized metal affinity chromatography of proteins. Anal Bioanal Chem 2016; 408:7595-7605. [DOI: 10.1007/s00216-016-9826-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 07/14/2016] [Accepted: 07/22/2016] [Indexed: 11/29/2022]
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16
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Van Yperen-De Deyne A, Hendrickx K, Vanduyfhuys L, Sastre G, Van Der Voort P, Van Speybroeck V, Hemelsoet K. Vibrational fingerprint of the absorption properties of UiO-type MOF materials. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1842-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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17
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Hendrickx K, Vanpoucke DEP, Leus K, Lejaeghere K, Van Yperen-De Deyne A, Van Speybroeck V, Van Der Voort P, Hemelsoet K. Understanding Intrinsic Light Absorption Properties of UiO-66 Frameworks: A Combined Theoretical and Experimental Study. Inorg Chem 2015; 54:10701-10. [DOI: 10.1021/acs.inorgchem.5b01593] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Kevin Hendrickx
- Department of Inorganic
and Physical Chemistry, Center for Ordered Materials, Organometallics
and Catalysis (COMOC), Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark
903, 9052 Zwijnaarde, Belgium
| | - Danny E. P. Vanpoucke
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark
903, 9052 Zwijnaarde, Belgium
| | - Karen Leus
- Department of Inorganic
and Physical Chemistry, Center for Ordered Materials, Organometallics
and Catalysis (COMOC), Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium
| | - Kurt Lejaeghere
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark
903, 9052 Zwijnaarde, Belgium
| | - Andy Van Yperen-De Deyne
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark
903, 9052 Zwijnaarde, Belgium
| | - Veronique Van Speybroeck
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark
903, 9052 Zwijnaarde, Belgium
| | - Pascal Van Der Voort
- Department of Inorganic
and Physical Chemistry, Center for Ordered Materials, Organometallics
and Catalysis (COMOC), Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium
| | - Karen Hemelsoet
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark
903, 9052 Zwijnaarde, Belgium
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18
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Van Speybroeck V, Hemelsoet K, Joos L, Waroquier M, Bell RG, Catlow CRA. Advances in theory and their application within the field of zeolite chemistry. Chem Soc Rev 2015; 44:7044-111. [PMID: 25976164 DOI: 10.1039/c5cs00029g] [Citation(s) in RCA: 246] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Zeolites are versatile and fascinating materials which are vital for a wide range of industries, due to their unique structural and chemical properties, which are the basis of applications in gas separation, ion exchange and catalysis. Given their economic impact, there is a powerful incentive for smart design of new materials with enhanced functionalities to obtain the best material for a given application. Over the last decades, theoretical modeling has matured to a level that model guided design has become within reach. Major hurdles have been overcome to reach this point and almost all contemporary methods in computational materials chemistry are actively used in the field of modeling zeolite chemistry and applications. Integration of complementary modeling approaches is necessary to obtain reliable predictions and rationalizations from theory. A close synergy between experimentalists and theoreticians has led to a deep understanding of the complexity of the system at hand, but also allowed the identification of shortcomings in current theoretical approaches. Inspired by the importance of zeolite characterization which can now be performed at the single atom and single molecule level from experiment, computational spectroscopy has grown in importance in the last decade. In this review most of the currently available modeling tools are introduced and illustrated on the most challenging problems in zeolite science. Directions for future model developments will be given.
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19
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Van Yperen-De Deyne A, De Meyer T, Pauwels E, Ghysels A, De Clerck K, Waroquier M, Van Speybroeck V, Hemelsoet K. Exploring the vibrational fingerprint of the electronic excitation energy via molecular dynamics. J Chem Phys 2015; 140:134105. [PMID: 24712778 DOI: 10.1063/1.4869937] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A Fourier-based method is presented to relate changes of the molecular structure during a molecular dynamics simulation with fluctuations in the electronic excitation energy. The method implies sampling of the ground state potential energy surface. Subsequently, the power spectrum of the velocities is compared with the power spectrum of the excitation energy computed using time-dependent density functional theory. Peaks in both spectra are compared, and motions exhibiting a linear or quadratic behavior can be distinguished. The quadratically active motions are mainly responsible for the changes in the excitation energy and hence cause shifts between the dynamic and static values of the spectral property. Moreover, information about the potential energy surface of various excited states can be obtained. The procedure is illustrated with three case studies. The first electronic excitation is explored in detail and dominant vibrational motions responsible for changes in the excitation energy are identified for ethylene, biphenyl, and hexamethylbenzene. The proposed method is also extended to other low-energy excitations. Finally, the vibrational fingerprint of the excitation energy of a more complex molecule, in particular the azo dye ethyl orange in a water environment, is analyzed.
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Affiliation(s)
- Andy Van Yperen-De Deyne
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium
| | - Thierry De Meyer
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium
| | - Ewald Pauwels
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium
| | - An Ghysels
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium
| | - Karen De Clerck
- Department of Textiles, Ghent University, Technologiepark 907, 9052 Zwijnaarde, Belgium
| | - Michel Waroquier
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium
| | - Veronique Van Speybroeck
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium
| | - Karen Hemelsoet
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium
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20
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Affiliation(s)
- Vanderlei G. Machado
- Departamento
de Química, Universidade Federal de Santa Catarina, UFSC, Florianópolis, SC 88040-900, Brazil
| | - Rafaela I. Stock
- Departamento
de Química, Universidade Federal de Santa Catarina, UFSC, Florianópolis, SC 88040-900, Brazil
| | - Christian Reichardt
- Fachbereich
Chemie, Philipps-Universität, Hans-Meerwein-Strasse, 35032 Marburg, Germany
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21
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Hemelsoet K, Qian Q, De Meyer T, De Wispelaere K, De Sterck B, Weckhuysen BM, Waroquier M, Van Speybroeck V. Identification of Intermediates in Zeolite‐Catalyzed Reactions by In Situ UV/Vis Microspectroscopy and a Complementary Set of Molecular Simulations. Chemistry 2013; 19:16595-606. [DOI: 10.1002/chem.201301965] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Karen Hemelsoet
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde (Belgium), QCMM‐alliance, Ghent‐Brussels (Belgium)
| | - Qingyun Qian
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht (The Netherlands)
| | - Thierry De Meyer
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde (Belgium), QCMM‐alliance, Ghent‐Brussels (Belgium)
| | - Kristof De Wispelaere
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde (Belgium), QCMM‐alliance, Ghent‐Brussels (Belgium)
| | - Bart De Sterck
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde (Belgium), QCMM‐alliance, Ghent‐Brussels (Belgium)
- Current address: Ineos Technologies, Scheldelaan 482, 2040 Antwerp (Belgium)
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht (The Netherlands)
| | - Michel Waroquier
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde (Belgium), QCMM‐alliance, Ghent‐Brussels (Belgium)
| | - Veronique Van Speybroeck
- Center for Molecular Modeling (CMM), Ghent University, Technologiepark 903, 9052 Zwijnaarde (Belgium), QCMM‐alliance, Ghent‐Brussels (Belgium)
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Kumar A, Pandey R, Gupta RK, Pandey DS. Fluorescent azophenol-quinazoline dyad as multichannel reversible pH indicator in aqueous media: an innovative concept on diazo based dyads. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.08.103] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Brasca R, Romero MA, Goicoechea HC, Kelterer AM, Fabian WMF. Spectroscopic behavior of loratadine and desloratadine in different aqueous media conditions studied by means of TD-DFT calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 115:250-258. [PMID: 23835058 DOI: 10.1016/j.saa.2013.06.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 05/14/2013] [Accepted: 06/08/2013] [Indexed: 06/02/2023]
Abstract
In this study, we explained the influence of the stepwise protonation of two antihistaminic drugs on their experimental absorption spectra. We demonstrated the capability of the TD-CAM-B3LYP method, combined with a polarizable continuum model, to produce good performance for the calculated spectra. The lowest energy transitions and the molecular orbital plots were analyzed in detail. The calculated UV spectra are proposed as potential alternatives to initialize the well-known MCR-ALS algorithm, especially when the spectra of the pure analytes are not available. Moreover, it can be a useful strategy for planning an experimental methodology oriented to multiway analysis when the drug species exhibit acid-base properties.
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Affiliation(s)
- Romina Brasca
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral-CONICET, Ciudad Universitaria, S3000ZAA Santa Fe, Argentina.
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Liu YY, Leus K, Bogaerts T, Hemelsoet K, Bruneel E, Van Speybroeck V, Van Der Voort P. Bimetallic-Organic Framework as a Zero-Leaching Catalyst in the Aerobic Oxidation of Cyclohexene. ChemCatChem 2013. [DOI: 10.1002/cctc.201300529] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Van der Schueren L, De Meyer T, Steyaert I, Ceylan Ö, Hemelsoet K, Van Speybroeck V, De Clerck K. Polycaprolactone and polycaprolactone/chitosan nanofibres functionalised with the pH-sensitive dye Nitrazine Yellow. Carbohydr Polym 2013; 91:284-93. [DOI: 10.1016/j.carbpol.2012.08.003] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 07/30/2012] [Accepted: 08/01/2012] [Indexed: 11/27/2022]
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