1
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Cardoso LMB, de Oliveira Neto JG, Saraiva GD, Leite FF, Ayala AP, Dos Santos AO, de Sousa FF. New polymorphic phase of arachidic acid crystal: structure, intermolecular interactions, low-temperature stability and Raman spectroscopy combined with DFT calculations. RSC Adv 2023; 13:34032-34044. [PMID: 38020030 PMCID: PMC10660439 DOI: 10.1039/d3ra05388a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/04/2023] [Indexed: 12/01/2023] Open
Abstract
Saturated monocarboxylic fatty acids with long carbon chains are organic compounds widely used in several applied fields, such as energy production, thermal energy storage, antibactericidal, antimicrobial, among others. In this research, a new polymorphic phase of arachidic acid (AA) crystal was synthesized and its structural and vibrational properties were studied by single-crystal X-ray diffraction (XRD) and polarized Raman scattering. The new structure of AA was solved at two different temperature conditions (100 and 300 K). XRD analysis indicated that this polymorph belongs to the monoclinic space group P21/c (C2h5), with four molecules per unit cell (Z = 4). All molecules in the crystal lattice adopt a gauche configuration, exhibiting a R22(8) hydrogen bond pattern. Consequently, this new polymorphic phase, labeled as B form, is a polytype belonging to the monoclinic symmetry, i.e., Bm form. Complementarily, Hirshfeld's surfaces were employed to analyze the intermolecular interactions within the crystal lattice of this polymorph at temperatures of 100 and 300 K. Additionally, density functional theory (DFT) calculations were performed to assign all intramolecular vibration modes related to experimental Raman-active bands, which were properly calculated using a dimer model, considering a pair of AA molecules in the gauche configuration, according to the solved-crystal structure.
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Affiliation(s)
- Luanny M B Cardoso
- Institute of Exact and Natural Sciences, Federal University of Para - UFPA Belém Pará CEP 66075-110 Brazil
| | - João G de Oliveira Neto
- Center for Social Sciences, Health, and Technology, Federal University of Maranhao - UFMA Imperatriz Maranhão CEP 65900-410 Brazil
| | - Gilberto D Saraiva
- Physics Course, State University of Ceara - UECE Campus FECLESC Quixadá Ceará CEP 63900-000 Brazil
| | - Fábio F Leite
- Department of Exact and Technological Sciences, Federal University of Amapá - UNIFAP Macapá Amapá CEP 68903-419 Brazil
| | - Alejandro P Ayala
- Department of Physics, Federal University of Ceara - UFC Fortaleza Ceará CEP 65455-900 Brazil
| | - Adenilson O Dos Santos
- Center for Social Sciences, Health, and Technology, Federal University of Maranhao - UFMA Imperatriz Maranhão CEP 65900-410 Brazil
| | - Francisco F de Sousa
- Institute of Exact and Natural Sciences, Federal University of Para - UFPA Belém Pará CEP 66075-110 Brazil
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2
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Pezzotti G, Ohgitani E, Fujita Y, Imamura H, Pappone F, Grillo A, Nakashio M, Shin-Ya M, Adachi T, Yamamoto T, Kanamura N, Marin E, Zhu W, Inaba T, Tanino Y, Nukui Y, Higasa K, Yasukochi Y, Okuma K, Mazda O. Raman Fingerprints of SARS-CoV-2 Omicron Subvariants: Molecular Roots of Virological Characteristics and Evolutionary Directions. ACS Infect Dis 2023; 9:2226-2251. [PMID: 37850869 PMCID: PMC10644350 DOI: 10.1021/acsinfecdis.3c00312] [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: 07/03/2023] [Indexed: 10/19/2023]
Abstract
The latest RNA genomic mutation of SARS-CoV-2 virus, termed the Omicron variant, has generated a stream of highly contagious and antibody-resistant strains, which in turn led to classifying Omicron as a variant of concern. We systematically collected Raman spectra from six Omicron subvariants available in Japan (i.e., BA.1.18, BA.2, BA.4, BA.5, XE, and BA.2.75) and applied machine-learning algorithms to decrypt their structural characteristics at the molecular scale. Unique Raman fingerprints of sulfur-containing amino acid rotamers, RNA purines and pyrimidines, tyrosine phenol ring configurations, and secondary protein structures clearly differentiated the six Omicron subvariants. These spectral characteristics, which were linked to infectiousness, transmissibility, and propensity for immune evasion, revealed evolutionary motifs to be compared with the outputs of genomic studies. The availability of a Raman "metabolomic snapshot", which was then translated into a barcode to enable a prompt subvariant identification, opened the way to rationalize in real-time SARS-CoV-2 activity and variability. As a proof of concept, we applied the Raman barcode procedure to a nasal swab sample retrieved from a SARS-CoV-2 patient and identified its Omicron subvariant by coupling a commercially available magnetic bead technology with our newly developed Raman analyses.
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Affiliation(s)
- Giuseppe Pezzotti
- Ceramic
Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
- Department
of Molecular Genetics, Institute of Biomedical Science, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
- Department
of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
- Department
of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, 160-0023 Tokyo, Japan
- Department
of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
- Department
of Molecular Science and Nanosystems, Ca’
Foscari University of Venice, Via Torino 155, 30172 Venice, Italy
- Department
of Applied Science and Technology, Politecnico
di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Eriko Ohgitani
- Department
of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
| | - Yuki Fujita
- Ceramic
Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
| | - Hayata Imamura
- Ceramic
Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
- Department
of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Francesco Pappone
- Department
of Mathematical Science, Politecnico di
Torino, Corso Duca degli
Abruzzi 24, 10129 Torino, Italy
| | - Alfio Grillo
- Department
of Mathematical Science, Politecnico di
Torino, Corso Duca degli
Abruzzi 24, 10129 Torino, Italy
| | - Maiko Nakashio
- Department
of Infection Control & Laboratory Medicine, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
| | - Masaharu Shin-Ya
- Department
of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
| | - Tetsuya Adachi
- Department
of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
- Department
of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
- Department
of Microbiology, Kansai Medical University,
School of Medicine, 2-5-1
Shinmachi, Hirakata 573-1010, Osaka Prefecture, Japan
| | - Toshiro Yamamoto
- Department
of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Narisato Kanamura
- Department
of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Elia Marin
- Ceramic
Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
- Department
of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Wenliang Zhu
- Ceramic
Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
| | - Tohru Inaba
- Department
of Infection Control & Laboratory Medicine, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
| | - Yoko Tanino
- Department of Clinical Laboratory, University
Hospital, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
| | - Yoko Nukui
- Department of Clinical Laboratory, University
Hospital, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
| | - Koichiro Higasa
- Genome Analysis, Institute of Biomedical
Science, Kansai Medical University, 2-3-1 Shin-machi, Hirakata, Osaka 573-1191, Japan
| | - Yoshiki Yasukochi
- Genome Analysis, Institute of Biomedical
Science, Kansai Medical University, 2-3-1 Shin-machi, Hirakata, Osaka 573-1191, Japan
| | - Kazu Okuma
- Department
of Microbiology, Kansai Medical University,
School of Medicine, 2-5-1
Shinmachi, Hirakata 573-1010, Osaka Prefecture, Japan
| | - Osam Mazda
- Department
of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
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3
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P Gurgel W, Correa A, C Santos C, O Santos A, D Saraiva G, T C Freire P, E S Nogueira C, G C Moreira S, F de Sousa F. Elucidating the phase transitions of decanoic-acid crystal by XRD, Raman, group theory and Gibbs energy analyses combined with DFT calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 287:122068. [PMID: 36379089 DOI: 10.1016/j.saa.2022.122068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/19/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
This research reports a series of phase transitions in the decanoic-acid (DA) crystal under low-temperature conditions, which were elucidated by XRD, Raman scattering and DFT calculations in a dimer of DA in the C form (monoclinic structure). The first phase change was noticed within the 210-190 K interval duly characterized as a transition of second-order type, as indicated by Gibbs energy behavior, suggesting that the monoclinic structure (P21/c) of the crystal is not changed. The second change was observed nearly 110-90 K, whose transition is first-order type occurring from the C form to an A form (triclinic), possibly belonging to the P1 space group. This new polymorphic phase was duly predicted through DFT calculations. According to Gibbs energy behavior, the third phase change (∼30-10 K) is proposed to be a transition from the A form to a new polymorphic phase that probably is a first-order transition, likely associated with a change from the P1 space group to P-1. Furthermore, group theory and wavenumber vs temperature plots' analyses corroborated the phase transitions undergone by DA crystal. In addition, anharmonicity effects in several Raman bands' behavior were noticed during the cooling. A correct assignment for the Raman and IR modes via DFT calculations at room-temperature conditions is also provided herein.
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Affiliation(s)
- Walldiney P Gurgel
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 Belém, Pará, Brazil
| | - Adriano Correa
- Departamento de Física, Universidade Federal do Maranhão, CEP 65080-805 São Luis, MA, Brazil
| | - Clenilton C Santos
- Departamento de Física, Universidade Federal do Maranhão, CEP 65080-805 São Luis, MA, Brazil
| | - Adenilson O Santos
- Universidade Federal do Maranhão, CCSST, CEP 65900-410 Imperatriz, Maranhão, Brazil
| | - Gilberto D Saraiva
- Faculdade de Educação Ciências e Letras do Sertão Central, Universidade Estadual do Ceará, CEP 63900-000 Quixadá, Ceará, Brazil
| | - Paulo T C Freire
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-760 Fortaleza, Ceará, Brazil
| | - Carlos E S Nogueira
- Departamento de Física, Universidade Regional do Cariri, CEP 63010-970 Crato, Ceará, Brazil
| | - Sanclayton G C Moreira
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 Belém, Pará, Brazil
| | - Francisco F de Sousa
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 Belém, Pará, Brazil.
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4
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Santos JGS, Macedo-Filho A, Silva AM, de Sousa FF, Caetano EWS, da Silva MB, Freire VN. Computational structural, electronic and optical properties of the palmitic acid in its C form. J Mol Model 2021; 27:145. [PMID: 33932166 DOI: 10.1007/s00894-021-04752-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 04/15/2021] [Indexed: 10/21/2022]
Abstract
In this work, we report a theoretical study of the structural, electronic, and optical properties of palmitic acid crystal in its C form under DFT calculations level. Palmitic acid is a fatty acid that constitutes the large majority of vegetable oils with recognized potential applications in medicine, pharmaceuticals, cosmetics technology, foods, and fuel. As a main result, we have found that the electronic bandstructure reveals an indirect gap given by 3.713 eV (E→B andE→Γ), as a main bandgap, while the secondary bandgaps found were 4.175 eV (γ1→Γ) and 4.172 eV (γ2→B). It behaves like a wide bandgap semiconductor, which points to potential applications in optoelectronic devices.
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Affiliation(s)
- J G S Santos
- PPGQ-GERATEC, Universidade Estadual do Piauí, 64002-150, Teresina, PI, Brazil
| | - A Macedo-Filho
- PPGQ-GERATEC, Universidade Estadual do Piauí, 64002-150, Teresina, PI, Brazil. .,Departamento de Física, Universidade Estadual do Piauí, 64002-150, Teresina, PI, Brazil.
| | - A M Silva
- Campus Prof. Antonio Geovanne Alves de Sousa, Universidade Estadual do Piauí, 64260-000, Piripiri, PI, Brazil
| | - F F de Sousa
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, 66075-110, Belém, PA, Brazil
| | - E W S Caetano
- Instituto Federal de Educação, Ciência e Tecnologia do Ceará, DEMEL, Campus Fortaleza, 60040-531, Fortaleza, CE, Brazil
| | - M B da Silva
- E. E. M. Auton Aragão, 62250-000, Ipu, CE, Brazil
| | - V N Freire
- Departamento de Física, Universidade Federal do Ceará, 60455-760, Fortaleza, CE, Brazil
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5
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Hafner MR, Carraro F, Brandner LA, Maniam S, Grenci G, Ljubojevic-Holzer S, Bischof H, Malli R, Borisov SM, Doonan C, Falcaro P. Fatty acids as biomimetic replication agents for luminescent metal-organic framework patterns. Chem Commun (Camb) 2020; 56:12733-12736. [PMID: 32966379 DOI: 10.1039/d0cc03876h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Luminescent metal-organic frameworks (MOFs) are known to spontaneously self-assemble on human fingerprints. Here, we investigate the different chemical components of fingerprints and determine that MOF growth is predominantly induced by insoluble fatty acids. This finding shows that these simple biomolecules can be employed for the precise positioning of luminescent MOFs.
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Affiliation(s)
- Michael R Hafner
- Institute of Physical and Theoretical Chemistry, Graz University of Technology, Graz 8010, Austria.
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6
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Carrizo D, Muñoz-Iglesias V, Fernández-Sampedro MT, Gil-Lozano C, Sánchez-García L, Prieto-Ballesteros O, Medina J, Rull F. Detection of Potential Lipid Biomarkers in Oxidative Environments by Raman Spectroscopy and Implications for the ExoMars 2020-Raman Laser Spectrometer Instrument Performance. ASTROBIOLOGY 2020; 20:405-414. [PMID: 31985262 DOI: 10.1089/ast.2019.2100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The aim of the European Space Agency's ExoMars rover mission is to search for potential traces of present or past life in the swallow subsurface (2 m depth) of Mars. The ExoMars rover mission relies on a suite of analytical instruments envisioned to identify organic compounds with biological value (biomarkers) associated with a mineralogical matrix in a highly oxidative environment. We investigated the feasibility of detecting basic organics (linear and branched lipid molecules) with Raman laser spectroscopy, an instrument onboard the ExoMars rover, when exposed to oxidant conditions. We compared the detectability of six lipid molecules (alkanes, alkanols, fatty acid, and isoprenoid) before and after an oxidation treatment (15 days with hydrogen peroxide), with and without mineral matrix support (amorphous silica rich vs. iron rich). Raman and infrared spectrometry was combined with gas chromatography-mass spectrometry to determine detection limits and technical constraints. We observed different spectral responses to degradation depending on the lipid molecule and mineral substrate, with the silica-rich material showing better preservation of organic signals. These findings will contribute to the interpretation of Raman laser spectroscopy results on cores from the ExoMars rover landing site, the hydrated silica-enriched delta fan on Cogoon Vallis (Oxia Planum).
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Affiliation(s)
| | | | | | | | | | | | - Jesús Medina
- Unidad Asociada UVa-CSIC al Centro de Astrobiología (CSIC-INTA), University of Valladolid, Valladolid, Spain
| | - Fernando Rull
- Unidad Asociada UVa-CSIC al Centro de Astrobiología (CSIC-INTA), University of Valladolid, Valladolid, Spain
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7
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Baldez TS, Remédios CMR, de Menezes AS, Dos Santos AO, de Sousa FF. New structural phases of [bis(L-alaninato) diaqua] nickel(II) dihydrate crystal. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 214:294-301. [PMID: 30802790 DOI: 10.1016/j.saa.2019.02.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 11/27/2018] [Accepted: 02/16/2019] [Indexed: 06/09/2023]
Abstract
The study of [bis(L‑alaninato) diaqua] nickel(II) dihydrate crystal using Raman scattering and X-ray diffraction as a function of temperature is reported in this paper. Thermal analysis (TGA and DSC) complementary measurements were also performed in order to obtain information on structural changes and mass loss occurred in this material. It was identified that the crystal undergoes loss of water at two different temperatures: ~340 and 393 K. X-ray diffraction measurements showed two phase transformations related to these two water loss events. After heating up to 423 K, the sample was cooled down to 298 K and its diffraction pattern presented the same pattern at 423 K, evidencing an irreversible phase transformation. The diffraction results also showed that crystal goes to monohydrate and anhydrous phases. Furthermore, cell lattice parameters and space groups of both phases were determined by applying Rietveld refinement through Le Bail method, demonstrating that their structures belong to the P21 and C2/c space groups, both with monoclinic symmetry. In addition, assignments of Raman spectra vibrational bands (at 300 K) are provided. The high-temperature Raman spectra were obtained in the 100-3500 cm-1 range, where it was observed several abrupt changes in the intensity of low-wavenumber bands and the appearance/disappearance of some vibrational modes that have coupling with OH⋯O hydrogen bonds. These spectral changes are in good agreement with X-ray diffraction and thermal analyses data. Finally, we obtained Raman measurements at low temperatures, from which we identified that the crystal structure is extremely stable throughout the temperature range of 293-10 K.
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Affiliation(s)
- T S Baldez
- Instituto Federal do Maranhão, CEP 65950-000 Barra do Corda, MA, Brazil
| | - C M R Remédios
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 Belém, PA, Brazil
| | - A S de Menezes
- Departamento de Física, Universidade Federal do Maranhão, CCET, CEP 65080-805 São Luis, MA, Brazil
| | - A O Dos Santos
- Universidade Federal do Maranhão, CCSST, CEP 65900-410 Imperatriz, MA, Brazil
| | - F F de Sousa
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 Belém, PA, Brazil.
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8
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Miranda JRS, de Castro AJR, da Silva Filho JG, Freire PTC, Pinheiro GS, Moreira SGC, Saraiva GD, de Sousa FF. Phase transformation in the C form of myristic-acid crystals and DFT calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 208:97-108. [PMID: 30296674 DOI: 10.1016/j.saa.2018.09.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/27/2018] [Accepted: 09/30/2018] [Indexed: 06/08/2023]
Abstract
In this study, the vibrational frequencies of myristic acid (CH3(CH2)12COOH) were obtained using density functional theory calculations, and the results were compared with experimental Raman and infrared data. Additionally, Raman spectra of crystalline myristic acid were recorded in the 300-20 K range. Raman spectroscopy gives important insights into the effect of low temperatures on its monoclinic phase. X-ray diffraction was performed from 298 to 133 K to provide additional information about the cryogenic behavior of the crystals. These undergo a phase transformation, which was confirmed by differential scanning calorimetry through an enthalpy anomaly observed at low temperatures. Raman spectra and X-ray diffraction refinement of the cell parameters in combination with differential scanning calorimetry at low temperatures revealed slight modifications, confirming a conformational change in the myristic acid molecules involving rearrangement of dimers within the unit cell.
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Affiliation(s)
- J R S Miranda
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 Belém, PA, Brazil
| | - A J R de Castro
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-760 Fortaleza, CE, Brazil; Campus Quixadá, Universidade Federal do Ceará, CEP 63902-580 Quixadá, CE, Brazil
| | - J G da Silva Filho
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-760 Fortaleza, CE, Brazil
| | - P T C Freire
- Departamento de Física, Universidade Federal do Ceará, CEP 60455-760 Fortaleza, CE, Brazil
| | - G S Pinheiro
- Departamento de Física, Campus Ministro Petrônio Portella, Universidade Federal do Piauí, CEP 64049-550 Teresina, PI, Brazil
| | - S G C Moreira
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 Belém, PA, Brazil
| | - G D Saraiva
- Faculdade Educação Ciências e Letras do Sertão Central, Universidade Estadual do Ceará, CEP 63900-000 Quixadá, CE, Brazil.
| | - F F de Sousa
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 Belém, PA, Brazil.
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9
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Grabska J, Beć KB, Ishigaki M, Huck CW, Ozaki Y. NIR Spectra Simulations by Anharmonic DFT-Saturated and Unsaturated Long-Chain Fatty Acids. J Phys Chem B 2018; 122:6931-6944. [DOI: 10.1021/acs.jpcb.8b04862] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Justyna Grabska
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Krzysztof B. Beć
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan
| | - Mika Ishigaki
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan
| | - Christian W. Huck
- Institute of Analytical Chemistry and Radiochemistry, Leopold-Franzens University, Innrain 80-82, 6020 Innsbruck, Austria
| | - Yukihiro Ozaki
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan
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10
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L. da Silva LF, Andrade-Filho T, Freire PTC, Filho JM, da Silva Filho JG, Saraiva GD, Moreira SGC, de Sousa FF. Polarized Raman and Infrared Spectroscopy and ab Initio Calculation of Palmitic and Stearic Acids in the Bm and C Forms. J Phys Chem A 2017; 121:4830-4842. [DOI: 10.1021/acs.jpca.7b04117] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L. F. L. da Silva
- Faculdade
de Física, Universidade Federal do Pará, CEP 66075-110, Belém, PA, Brazil
| | - T. Andrade-Filho
- Instituto
de Ciências Exatas, Universidade Federal do Sul e Sudeste do Pará, CEP 68505-080, Marabá, PA, Brazil
| | - P. T. C. Freire
- Departamento
de Física, Universidade Federal do Ceará, CEP 60455-970, Fortaleza, CE, Brazil
| | - J. Mendes Filho
- Departamento
de Física, Universidade Federal do Ceará, CEP 60455-970, Fortaleza, CE, Brazil
| | - J. G. da Silva Filho
- Departamento
de Física, Universidade Federal do Ceará, CEP 60455-970, Fortaleza, CE, Brazil
| | - G. D. Saraiva
- Faculdade
de Educação Ciências e Letras do Sertão
Central, Universidade Estadual do Ceará, CEP 63900-000, Quixadá, CE, Brazil
| | - S. G. C. Moreira
- Faculdade
de Física, Universidade Federal do Pará, CEP 66075-110, Belém, PA, Brazil
| | - F. F. de Sousa
- Instituto
de Ciências Exatas, Universidade Federal do Sul e Sudeste do Pará, CEP 68505-080, Marabá, PA, Brazil
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