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Hachuła B, Włodarczyk P, Jurkiewicz K, Grelska J, Scelta D, Fanetti S, Paluch M, Pawlus S, Kamiński K. Pressure-Induced Aggregation of Associating Liquids as a Driving Force Enhancing Hydrogen Bond Cooperativity. J Phys Chem Lett 2024; 15:127-135. [PMID: 38147681 DOI: 10.1021/acs.jpclett.3c03037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
The behavior of hydrogen bonds under extreme pressure is still not well understood. Until now, the shift of the stretching vibration band of the X-H group (X = the donor atom) in infrared spectra has been attributed to the variation in the length of the covalent X-H bond. Herein, we combined infrared spectroscopy and X-ray diffraction experimental studies of two H-bonded liquid hexane derivatives, i.e., 2-ethyl-1-hexanol and 2-ethyl-1-hexylamine, in diamond anvil cells at pressures up to the GPa level, with molecular dynamics simulations covering similar thermodynamic conditions. Our findings revealed that the observed changes in the X-H stretching vibration bands under compression are not primarily due to H-bond shortening resulting from increased density but mainly due to cooperative enhancement of H-bonds caused by intensified molecular clustering. This sheds new light on the nature of H-bond interactions and the structure of liquid molecular systems under compression.
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Affiliation(s)
- Barbara Hachuła
- Institute of Chemistry, Faculty of Science and Technology, University of Silesia in Katowice, Szkolna 9, 40-007 Katowice, Poland
| | - Patryk Włodarczyk
- Lukasiewicz Research Network─Institute of Non-Ferrous Metals, 5 Sowinskiego, 44-100 Gliwice, Poland
| | - Karolina Jurkiewicz
- Institute of Physics, Faculty of Science and Technology, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
| | - Joanna Grelska
- Institute of Physics, Faculty of Science and Technology, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
| | - Demetrio Scelta
- LENS, European Laboratory for Non-linear Spectroscopy, Via N. Carrara 1, I-50019 Sesto Fiorentino, Firenze, Italy
- ICCOM-CNR, Institute of Chemistry of OrganoMetallic Compounds, National Research Council of Italy, Via Madonna del Piano 10, I-50019 Sesto Fiorentino, Firenze, Italy
| | - Samuele Fanetti
- LENS, European Laboratory for Non-linear Spectroscopy, Via N. Carrara 1, I-50019 Sesto Fiorentino, Firenze, Italy
- ICCOM-CNR, Institute of Chemistry of OrganoMetallic Compounds, National Research Council of Italy, Via Madonna del Piano 10, I-50019 Sesto Fiorentino, Firenze, Italy
| | - Marian Paluch
- Institute of Physics, Faculty of Science and Technology, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
| | - Sebastian Pawlus
- Institute of Physics, Faculty of Science and Technology, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
| | - Kamil Kamiński
- Institute of Physics, Faculty of Science and Technology, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
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Garduño-Pineda L, Linares-Hernández I, Martínez-Miranda V, Teutli-Sequeira EA, Santa Cruz JM, García-Sánchez JJ. Sustainable removal of nutrients (n and p) in a wastewater treatment plant, with eggshell (biocalcium). Heliyon 2023; 9:e21581. [PMID: 38027994 PMCID: PMC10658251 DOI: 10.1016/j.heliyon.2023.e21581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Biological treatments have become insufficient to treat municipal wastewater with greater toxicity and excess nitrogen and phosphate species, thus affecting the organisms that consume the water. In this work, a process was implemented for the removal of nutrients through three stages: stage A, complete aeration (24 h, 43 months); stage B, decreased aeration (12 h, 17 months); and stage C, decreased aeration with biocalcium (12 h, 19 months). The addition of biocalcium from eggshell promoted the formation of flocks, which resulted in the removal of nitrites (61 %), nitrates (84 %), total nitrogen (57 %), total phosphorus (8.3 %), sedimentable solids (50 %), total suspended solids (69 %), BOD5 (76 %), helminth eggs (50 %) and fecal coliforms (54 %). The statistical analyses in the three stages indicated that there is a strong correlation between the concentration of fats and oils and the removal of sedimentable solids and total suspended solids, since these parameters were correlated by 97 and 89 %, respectively. Sedimentable solids were correlated with total suspended solids by 94 %, while nitrates and total nitrogen were correlated 92 %, which favors the removal of nutrients in wastewater. The increase in the concentration of nitrogen in the sludge in stage C generated a C:N ratio of 7.98. This ratio shows that the sludge is feasible for use as a mediator of soils and a biofertilizer because of the high contents of calcium, phosphorus and nitrogen. In addition, biocalcium promoted the precipitation of hydroxyapatite, struvite, calcite and quartz. In general, the three stages of the treatment contributed to the stabilization of the wastewater treatment plant (WWTP) in an efficient, economical, and safe way.
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Affiliation(s)
- Laura Garduño-Pineda
- Tecnológico de Estudios Superiores de Jocotitlán Estado de México, 50700, Mexico
- Gobierno del Estado de México, Consejo Mexiquense de Ciencia y Tecnología (COMECYT), Cátedras CONAHCYT, Mexico
| | - Ivonne Linares-Hernández
- Universidad Autónoma del Estado de México, Instituto Interamericano de Tecnología y Ciencias del Agua (IITCA), Toluca, 50120, Mexico
| | - Verónica Martínez-Miranda
- Universidad Autónoma del Estado de México, Instituto Interamericano de Tecnología y Ciencias del Agua (IITCA), Toluca, 50120, Mexico
| | - Elía Alejandra Teutli-Sequeira
- Universidad Autónoma del Estado de México, Instituto Interamericano de Tecnología y Ciencias del Agua (IITCA), Toluca, 50120, Mexico
- Gobierno de México, Consejo Nacional de Humanidades Ciencias y Tecnologías (CONAHCYT), Cátedras CONAHCYT, Mexico
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Zhao R, Zhu T, Wang S, Jarrett-Wilkins C, Najjarian AM, Lough AJ, Hoogland S, Sargent EH, Seferos DS. Engineering hydrogen bonding to align molecular dipoles in organic solids for efficient second harmonic generation. Chem Sci 2022; 13:12144-12148. [PMID: 36349093 PMCID: PMC9601317 DOI: 10.1039/d2sc03994j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/27/2022] [Indexed: 08/12/2023] Open
Abstract
Considering nearly infinite design possibilities, organic second harmonic generation (SHG) molecules are believed to have long-term promise. However, because of the tendency to form dipole-antiparallel crystals that lead to zero macroscopic polarization, it is difficult to design a nonlinear optical (NLO) material based on organic molecules. In this manuscript, we report a new molecule motif that can form asymmetric organic solids by controlling the degree of hydrogen bonding through protonation. A conjugated polar organic molecule was prepared with a triple bond connecting an electron-withdrawing pyridine ring and an electron-donating thiophene ring. By controlling the degree of hydrogen bonding through protonation, two different crystal packing motifs are achieved. One crystallizes into the common dipole-antiparallel nonpolar P1̄ space group. The second crystallizes into the uncommon dipole-parallel polar P1 space group, in which the molecular dipoles are aligned along a single axis and thus exhibit a high macroscopic polarization in its solid-state form. Due to the P1 polar packing, the sample can generate second harmonic light efficiently, about three times the intensity of the benchmark potassium dihydrogen phosphate. Our findings show that crystal engineering by hydrogen bonding in a single molecular backbone can be used for controlling the macroscopic NLO properties.
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Affiliation(s)
- Ruyan Zhao
- Department of Chemistry, University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Tong Zhu
- Department of Electronic and Computer Engineering, University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Sasa Wang
- Department of Electronic and Computer Engineering, University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Charlie Jarrett-Wilkins
- Department of Chemistry, University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Amin Morteza Najjarian
- Department of Electronic and Computer Engineering, University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Alan J Lough
- Department of Chemistry, University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Sjoerd Hoogland
- Department of Electronic and Computer Engineering, University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Edward H Sargent
- Department of Electronic and Computer Engineering, University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Dwight S Seferos
- Department of Chemistry, University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto 200 College Street Toronto Ontario M5S 3E5 Canada
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Wang Y, Luo S, Zhang X, Wang Z, Qi H, Yan S, Wang X, Wang L, Wu H, Chen Y. Preparation and evaluation of modified
bisphenol‐A
‐glycidyl methacrylate resin dental adhesive to zirconia. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuhe Wang
- School of Materials Science and Engineering Northeastern University Shenyang China
- Hebei Key Laboratory of Dielectric and Electrolyte Functional Material, School of Resources and Materials Northeastern University at Qinhuangdao Qinhuangdao China
| | - Shao‐Hua Luo
- School of Materials Science and Engineering Northeastern University Shenyang China
- Hebei Key Laboratory of Dielectric and Electrolyte Functional Material, School of Resources and Materials Northeastern University at Qinhuangdao Qinhuangdao China
| | - Xian Zhang
- School of Materials Science and Engineering Northeastern University Shenyang China
- Hebei Key Laboratory of Dielectric and Electrolyte Functional Material, School of Resources and Materials Northeastern University at Qinhuangdao Qinhuangdao China
| | - Zihan Wang
- School of Materials Science and Engineering Northeastern University Shenyang China
- Hebei Key Laboratory of Dielectric and Electrolyte Functional Material, School of Resources and Materials Northeastern University at Qinhuangdao Qinhuangdao China
| | - Hongfei Qi
- School of Materials Science and Engineering Northeastern University Shenyang China
- Hebei Key Laboratory of Dielectric and Electrolyte Functional Material, School of Resources and Materials Northeastern University at Qinhuangdao Qinhuangdao China
| | - Shengxue Yan
- School of Materials Science and Engineering Northeastern University Shenyang China
- Hebei Key Laboratory of Dielectric and Electrolyte Functional Material, School of Resources and Materials Northeastern University at Qinhuangdao Qinhuangdao China
| | - Xuan Wang
- School of Materials Science and Engineering Northeastern University Shenyang China
- Hebei Key Laboratory of Dielectric and Electrolyte Functional Material, School of Resources and Materials Northeastern University at Qinhuangdao Qinhuangdao China
| | - Luoxuan Wang
- School of Materials Science and Engineering Northeastern University Shenyang China
- Hebei Key Laboratory of Dielectric and Electrolyte Functional Material, School of Resources and Materials Northeastern University at Qinhuangdao Qinhuangdao China
| | - Haiyan Wu
- Research and Development Department Aidite (Qinhuangdao) Technology Co., Ltd. Qinhuangdao China
| | - Yingying Chen
- Research and Development Department Aidite (Qinhuangdao) Technology Co., Ltd. Qinhuangdao China
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Carbon dots on paper for determination of Cu2+ in sugar cane spirits samples for fluorescence digital image-based method. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107500] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Strong Hydrogen Bonds in Acetylenedicarboxylic Acid Dihydrate. Int J Mol Sci 2022; 23:ijms23116164. [PMID: 35682843 PMCID: PMC9181247 DOI: 10.3390/ijms23116164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/26/2022] [Accepted: 05/26/2022] [Indexed: 11/30/2022] Open
Abstract
Acetylenedicarboxylic acid dihydrate (ADAD) represents a complex with strong hydrogen bonding between the carboxylic OH and the water molecule. An X-ray re-examination of the ADAD crystal structure confirms the O…O distance of the short hydrogen bonds, and clearly shows different bond lengths between the two oxygen atoms with respect to the carbon atom in the carboxyl group, indicating a neutral structure for the complex. The neutral structure was also confirmed by vibrational spectroscopy, as no proton transfer was observed. The diffraction studies also revealed two polymorph modifications: room temperature (α) and low temperature (β), with a phase transition at approximately 4.9 °C. The calculated vibrational spectra are in satisfactory agreement with the experimental spectra. A comparison of the structure and the vibrational spectra between the ADAD and the oxalic acid dihydrate reveals some interesting details. The crystal structures of both crystal hydrates are almost identical; only the O…O distances of the strongest hydrogen bonds differ by 0.08 Å. Although it was expected that a larger O…O spacing in the ADAD crystal may significantly change the infrared and Raman spectra, especially for the frequency and the shape of the acidic OH stretching vibration, both the shape and frequency are almost identical, with all subpeaks topped on the broad OH stretching vibration. The O…O distance dependent are only in- and out-of-plane OH deformations modes. The presence of polarons due to the ionized defects was not observed in the vibrational spectra of ADAD. Therefore, the origin of the broad OH band shape was explained in a similar way to the acid dimers. The anharmonicity of a potential enhances the coupling of the OH stretching with the low-frequency hydrogen bond stretching, which, in addition to the Fermi resonance, structures the band shape of the OH stretching. The fine structure found as a superposition of a broad OH stretching is attributed to Davydov coupling.
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Komasa A, Szafran M, Katrusiak A, Roszak K, Dega-Szafran Z. Crystal and molecular structure of 8-hydroxyquinoline betaine monohydrate studied by X-ray, FTIR, NMR and DFT. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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