1
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Interactions of pyridoxine (Vitamin B6) with squaric acid and water. Experimental and theoretical studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131773] [Citation(s) in RCA: 1] [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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2
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Gołdyn M, Skowronek J, Komasa A, Bartoszak-Adamska E, Lewandowska A, Dega-Szafran Z, Cofta G. Synthesis and structural characteristic of pyridine carboxylic acid adducts with squaric acid. CrystEngComm 2022. [DOI: 10.1039/d2ce00760f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Squaric acid was used as a coformer to pyridine carboxylic acid cocrystallization. Adducts were obtained by evaporation from solution. Spectroscopic and theoretical studies were also performed. Thermal analysis reveals the high thermal stability of the obtained complexes.
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Affiliation(s)
- Mateusz Gołdyn
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| | - Julia Skowronek
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| | - Anna Komasa
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| | | | - Aneta Lewandowska
- Department of Polymers, Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, Poznań 60-965, Poland
| | - Zofia Dega-Szafran
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| | - Grzegorz Cofta
- Department of Chemical Wood Technology, Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, Wojska Polskiego 28, Poznań 60-637, Poland
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3
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Effect of alkyl chain length in 2-(quinuclidinium)-alkanocarboxylates on structures of their complexes with 2,6-dichloro-4-nitrophenol. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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4
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Korkmaz U, Bulut A, Bulut İ. 3-Phenylpyridinium hydrogen squarate: experimental and computational study of a nonlinear optical material. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 140:140-149. [PMID: 25590828 DOI: 10.1016/j.saa.2014.12.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 11/20/2014] [Accepted: 12/09/2014] [Indexed: 06/04/2023]
Abstract
The detailed investigation of an organic nonlinear optical (NLO) squarate salt of 3-phenylpyridinium hydrogen squarate (1), C11H10N+·C4HO4(-), was reported in this study. The XRD data indicates that the crystal structure of the title compound is in the triclinic P-1 space group. In the asymmetric unit, the 3-phenylpyridine molecule is protonated by one hydrogen atom donation of squaric acid molecule, forming the salt (1). The X-ray analysis shows that the crystal packing has hydrogen bonding ring pattern of D2(2)(10) (α-dimer) through NH···O interactions. The structural and vibrational properties of the compound were also studied by computational methods of ab initio at DFT/B3LYP/6-31++G(d,p) (2) and HF/6-31++G(d,p) (3) levels of theory. The calculation results on the basis of two models for both the optimized molecular structure and vibrational properties for the 1 are presented and compared with the experimental results. Non-linear optical properties (NLO) of the title compound together with the molecular electrostatic potential (MEP), electronic absorption spectrum, frontier molecular orbitals (FMOs) and conformational flexibility were also studied at the 2 level and the results were reported. In order to evaluate the suitability for NLO applications thermal analysis (TG, DTA and DTG) data of 1 were also obtained.
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Affiliation(s)
- Ufuk Korkmaz
- Department of Physics, Faculty of Arts and Sciences, Ondokuzmayıs University, Kurupelit, 55139 Samsun, Turkey
| | - Ahmet Bulut
- Department of Physics, Faculty of Arts and Sciences, Ondokuzmayıs University, Kurupelit, 55139 Samsun, Turkey
| | - İclal Bulut
- Department of Chemistry, Faculty of Engineering, Ondokuzmayıs University, Kurupelit, 55139 Samsun, Turkey
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Korkmaz U, Bulut A. 2-Pyridinium propanol hydrogen squarate: experimental and computational study of a nonlinear optical material. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt B:1058-1068. [PMID: 25459503 DOI: 10.1016/j.saa.2014.09.130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 09/26/2014] [Accepted: 09/30/2014] [Indexed: 06/04/2023]
Abstract
The experimental and theoretical investigation of a novel organic nonlinear optical (NLO) squarate salt of 2-pyridinium propanol hydrogen squarate (1), C8H12ON(+)·C4HO4(-), were reported in this study. The crystal structure of the title compound was found to crystallize in the triclinic P-1 space group. In the asymmetric unit each squaric acid molecules have donated one H atom to the pyridines N1 and N2 atoms of a 2-pyridine propanol molecule, forming the salt (1). The X-ray analysis clearly indicated that the crystal packing has shown the hydrogen bonding ring pattern of D2(2)(10) (α-dimer) through N-H⋯O interactions. The structural and vibrational properties of the compound were also studied by computational methods of ab initio performed on the compound at DFT/B3LYP/6-31++G(d,p) (2) and HF/6-31++G(d,p) (3) level of theory. The calculation results on the basis of two models for both the optimized molecular structure and vibrational properties for the 1 are presented and compared with the X-ray analysis result. The molecular electrostatic potential (MEP), electronic absorption spectra, frontier molecular orbitals (FMOs), conformational flexibility and non-linear optical properties (NLO) of the title compound were also studied at the 2 level and the results are reported. In order to evaluate the suitability for NLO applications thermal analysis (TG, DTA and DTG) data of 1 were also obtained.
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Affiliation(s)
- Ufuk Korkmaz
- Department of Physics, Faculty of Arts and Sciences, Ondokuzmayıs University, Kurupelit, 55139 Samsun, Turkey
| | - Ahmet Bulut
- Department of Physics, Faculty of Arts and Sciences, Ondokuzmayıs University, Kurupelit, 55139 Samsun, Turkey
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6
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Korkmaz U, Topçu Y, Taş M, Bulut A. Synthesis, an experimental and quantum chemical computational study: proton sharing in 4-Morpholinium bis(hydrogen squarate). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 134:233-243. [PMID: 25022494 DOI: 10.1016/j.saa.2014.06.100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 06/05/2014] [Accepted: 06/16/2014] [Indexed: 06/03/2023]
Abstract
The experimental and theoretical investigation results of a novel organic squarate salt of 4-Morpholinium bis(hydrogen squarate) (1), C₆H₁₄ON(+)·C₈H₃O₈(-), were reported in this study. The crystal structure of the title compound was found to crystallize in the triclinic P-1 space group. In the crystals of 1 the morpholine ring adopts the chair conformation with the ethyl group in the equatorial and hydrogen atoms in axial positions. The hydrogen squarate anions are linked into a homoconjugated anion, [(HSQ)₂H], by a short symmetric, nonlinear O₈⋯H₂⋯O₂ hydrogen bond of 2.444 (2)Å. The structural and vibrational properties of the compound were also studied by computational methods of ab-initio performed on the compound at DFT/B3LYP/6-31++G(d,p) (2) and HF/6-31++G(d,p) (3) level of theory. The obtained calculation results on the basis of two models for both the optimized molecular structure and vibrational properties for the 1 obtained are presented and compared with the X-ray analysis result. On the other hand the molecular electrostatic potential (MEP), electronic absorption spectra, frontier molecular orbitals (FMOs), conformational flexibility and non-linear optical properties (NLO) of the title compound were also studied at the 2 level and the results are reported. In order to evaluate the suitability for NLO applications thermal analysis (TG, DTA and DTG) data of 1 were also obtained.
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Affiliation(s)
- Ufuk Korkmaz
- Department of Physics, Faculty of Arts and Sciences, Ondokuzmayıs University, 55139 Kurupelit, Samsun, Turkey.
| | - Yıldıray Topçu
- Ondokuz Mayıs University, Faculty of Engineering, Chemical Engineering Department, 55139 Kurupelit, Samsun, Turkey
| | - Murat Taş
- Department of Chemistry, Faculty of Arts and Sciences, Giresun University, 28049 Giresun, Turkey
| | - Ahmet Bulut
- Department of Physics, Faculty of Arts and Sciences, Ondokuzmayıs University, 55139 Kurupelit, Samsun, Turkey
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7
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Bartoszak-Adamska E, Dega-Szafran Z, Komasa A, Szafran M. Structural, spectroscopic and computational studies of the 2:1 complex of nipecotic acid with squaric acid. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2014.09.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Anioła M, Dega-Szafran Z, Katrusiak A, Szafran M. NH⋯O and OH⋯O interactions of glycine derivatives with squaric acid. NEW J CHEM 2014. [DOI: 10.1039/c4nj00212a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen-bonded complexes of glycine, sarcosine, dimethylgycine and betaine with squaric acid have been synthesized and characterized by X-ray diffraction, FTIR, NMR and DFT methods.
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Affiliation(s)
- Michalina Anioła
- Faculty of Chemistry
- Adam Mickiewicz University
- 61-614 Poznań, Poland
| | | | | | - Mirosław Szafran
- Faculty of Chemistry
- Adam Mickiewicz University
- 61-614 Poznań, Poland
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9
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Dega-Szafran Z, Katrusiak A, Komasa A, Szafran M. Supramolecular structure of the 1:2 complex of 1,4-dimethylpiperazine mono-betaine with squaric acid. Supramol Chem 2013. [DOI: 10.1080/10610278.2013.792342] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Zofia Dega-Szafran
- a Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89B, 61-614, Poznań , Poland
| | - Andrzej Katrusiak
- a Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89B, 61-614, Poznań , Poland
| | - Anna Komasa
- a Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89B, 61-614, Poznań , Poland
| | - Miroslaw Szafran
- a Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89B, 61-614, Poznań , Poland
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10
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Dega-Szafran Z, Katrusiak A, Szafran M. Stable Molecular Complex of Squaric Acid with 2-(Quinuclidinium)propionate. Aust J Chem 2013. [DOI: 10.1071/ch13121] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Squaric acid (3,4-dihydroxy-3-cyclobuten-1,2-dione, H2SQ) forms a complex with 2-(quinuclidinium)propionate (QNPr). In crystals, the molecules of H2SQ and zwitterions of QNPr are bridged by two strong non-equivalent O–H⋯O hydrogen bonds of 2.476(2) and 2.482(1) Å. The complex is investigated by X-ray diffraction, FTIR, and NMR techniques, and the results are supported by density functional theory calculations. The solid-state aggregation is consistent with the NMR results, recorded for an aqueous solution, and is also reproduced for the structure optimized at the B3LYP/6-311++G(d,p) level of theory. The calculated IR frequencies for the optimized structure have been used for the assignment of the experimental FTIR spectrum, where the broad absorption at ~2400 cm–1 corresponds to the short asymmetric OH⋯O bonds.
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11
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Lai W, Tang D, Fu L, Que X, Zhuang J, Chen G. A squaric acid-stimulated electrocatalytic reaction for sensing biomolecules with cycling signal amplification. Chem Commun (Camb) 2013; 49:4761-3. [DOI: 10.1039/c3cc41708e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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The 2:2 complex of pyridine betaine with squaric acid studied by X-ray diffraction, FTIR, NMR and DTG methods. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.06.052] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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