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Vu Quoc T, Do Ba D, Tran Thi Thuy D, Nguyen Ngoc L, Nguyen Thuy C, Vu Thi H, Khanh LD, Doan Thi Yen O, Thai H, Long VC, Talu S, Nguyen Trong D. DFT study on some polythiophenes containing benzo[ d]thiazole and benzo[ d]oxazole: structure and band gap. Des Monomers Polym 2021; 24:274-284. [PMID: 34512118 PMCID: PMC8425698 DOI: 10.1080/15685551.2021.1971376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 08/18/2021] [Indexed: 02/07/2023] Open
Abstract
The content of this paper focuses/shed light on the effects of X (X = S in P1 and X = O in P2) in C11H7NSX and R (R = H in P3, R = OCH3 in P4, and R = Cl in P5) in C18H9ON2S2-R on structural features and band gaps of the polythiophenes containing benzo[d]thiazole and benzo[d]oxazole by the Density Function Theory (DFT) method/calculation. The structural features including the electronic structure lattice constant (a), shape, total energy (Etot) per cell, and link length (r), are measured via band gap (Eg) prediction with the package of country density (PDOS) and total country density (DOS) of material studio software. The results obtained showed that the link angle and the link length between atoms were not changed significantly while the Etot was decreased from Etot = - 1904 eV (in P1) to Etot = - 2548 eV (in P2) when replacing O with S; and the Etot of P3 was decreased from Etot = - 3348 eV (in P3) when replacing OCH3, Cl on H of P3 corresponding to Etot = - 3575 eV (P4), - 4264 eV (P5). Similarly, when replacing O in P1 with - S to form P2, the Eg of P1 was dropped from Eg = 0.621 eV to Eg = 0.239 eV for P2. The Eg of P3, P4, and P5 is Eg = 0.006 eV, 0.064 eV, and 0.0645 eV, respectively. When a benzo[d]thiazole was added in P1 (changing into P3), the Eg was extremely strongly decreased, nearly 100 times (from Eg = 0.621 eV to Eg = 0.006 eV). The obtained results serve as a basis for future experimental work and used to fabricate smart electronic device.
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Affiliation(s)
- Trung Vu Quoc
- Faculty of Chemistry, Hanoi National University of Education, Cau Giay, Hanoi
| | - Dai Do Ba
- Nguyen Trai High School, Ba Dinh, Hanoi, Vietnam
| | | | - Linh Nguyen Ngoc
- Faculty of Training Bachelor of Practice, Thanh Do University, Kim Chung, Hoai Duc, Hanoi Vietnam
| | - Chinh Nguyen Thuy
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Huong Vu Thi
- Faculty of Chemistry, Hanoi National University of Education, Cau Giay, Hanoi
| | - Linh Duong Khanh
- Faculty of Chemistry, Hanoi National University of Education, Cau Giay, Hanoi
| | - Oanh Doan Thi Yen
- Publishing House for Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Hoang Thai
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Van Cao Long
- Institute of Physics, University of Zielona Góra, Zielona Góra, Poland
| | - Stefan Talu
- Technical University of Cluj-Napoca, The Directorate of Research, Development and Innovation Management (DMCDI), Cluj county, Romania
| | - Dung Nguyen Trong
- Institute of Physics, University of Zielona Góra, Zielona Góra, Poland
- Faculty of Physics, Hanoi National University of Education, Cau Giay, Hanoi, Vietnam
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Vu Quoc T, Phan Thuy L, Do Ba D, Tran Thi Thuy D, Nguyen Ngoc L, Nguyen Thuy C, Duong Khanh L, Ha Manh H, Thai H, Le Van K, Van Meervelt L. Crystal structure of potassium hydrogen bis-(( E)-2-{4-[3-(thio-phen-3-yl)acrylo-yl]phen-oxy}acetate). Acta Crystallogr E Crystallogr Commun 2021; 77:609-614. [PMID: 34164137 PMCID: PMC8183452 DOI: 10.1107/s2056989021004801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/06/2021] [Indexed: 11/10/2022]
Abstract
The synthesis and spectroscopic data of (E)-2-{4-[3-(thio-phen-3-yl)acrylo-yl]phen-oxy}acetic acid are described. Crystallization from an ethanol-water mixture resulted in the title compound, C30H23KO8S2 or [K(C15H11O4S)(C15H12O4S)] n , containing one mol-ecule of the acid and one mol-ecule of the potassium salt in the asymmetric unit. Both mol-ecules share the H atom between their carboxyl groups and a potassium ion. The C=C bonds display an E configuration. The thio-phene and phenyl rings in the two mol-ecules are inclined by 43.3 (2) and 22.7 (2)°. The potassium ion is octa-hedrally coordinated by six O atoms. This distorted octa-hedron shares on opposite sides two oxygen atoms with inversion-related octa-hedra, resulting in chains of octa-hedra running in the [010] direction, which form ladder-like chains by C-H⋯π inter-actions. A Hirshfeld surface analysis indicates that the highest contributions to the surface contacts arise from inter-actions in which H atoms are involved, with the most important contribution being from H⋯H (31.6 and 31.9% for the two mol-ecules) inter-actions.
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Affiliation(s)
- Trung Vu Quoc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi 10000, Vietnam
| | - Linh Phan Thuy
- High School for Gifted Students, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi 10000, Vietnam
| | - Dai Do Ba
- Nguyen Trai High School, 50 Nam Cao Street, Ba Dinh, Hanoi 10000, Vietnam
| | - Duong Tran Thi Thuy
- Bien Hoa Gifted High School, 86 Chu Van An Street, Phu Ly City, Ha Nam Province, Vietnam
| | - Linh Nguyen Ngoc
- Faculty of Training Bachelor of Practice, Than Do University, Kim Chung, Hoai Duc, Hanoi 10000, Vietnam
| | - Chinh Nguyen Thuy
- Institute of Tropical Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
| | - Linh Duong Khanh
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi 10000, Vietnam
| | - Hung Ha Manh
- Faculty of General Education, Hanoi University of Mining and Geology, Duc Thang Ward, Bac Tu Liem District, Hanoi 10000, Vietnam
| | - Hoang Thai
- Institute of Tropical Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
| | - Khoe Le Van
- Faculty of Natural Sciences, Hong Duc University, 565 Quang Trung, Dong Ve Ward, Thanh Hoa City, Vietnam
| | - Luc Van Meervelt
- Department of Chemistry, KU Leuven, Biomolecular Architecture, Celestijnenlaan 200F, Leuven (Heverlee), B-3001, Belgium
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Vu Quoc T, Nguyen Ngoc L, Tran Thi Thuy D, Vu Quoc M, Vuong Nguyen T, Oanh Doan Thi Y, Van Meervelt L. Crystal structure of two N'-(1-phenyl-benzyl-idene)-2-(thio-phen-3-yl)acetohydrazides. Acta Crystallogr E Crystallogr Commun 2019; 75:1090-1095. [PMID: 31417771 PMCID: PMC6690450 DOI: 10.1107/s2056989019008892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 06/21/2019] [Indexed: 11/10/2022]
Abstract
The synthesis, spectroscopic data, crystal and mol-ecular structures of two N'-(1-phenyl-benzyl-idene)-2-(thio-phen-3-yl)acetohydrazides, namely N'-[1-(4-hy-droxy-phen-yl)benzyl-idene]-2-(thio-phen-3-yl)acetohydrazide, C13H10N2O2S, (3a), and N'-[1-(4-meth-oxy-phen-yl)benzyl-idene]-2-(thio-phen-3-yl)acetohydrazide, C14H14N2O2S, (3b), are described. Both compounds differ in the substituent at the para position of the phenyl ring: -OH for (3a) and -OCH3 for (3b). In (3a), the thio-phene ring is disordered over two orientations with occupancies of 0.762 (3) and 0.238 (3). The configuration about the C=N bond is E. The thio-phene and phenyl rings are inclined by 84.0 (3) and 87.0 (9)° for the major- and minor-occupancy disorder components in (3a), and by 85.89 (12)° in (3b). Although these dihedral angles are similar, the conformation of the linker between the two rings is different [the C-C-C-N torsion angle is -ac for (3a) and -sc for (3b), while the C6-C7-N9-N10 torsion angle is +ap for (3a) and -sp for (3b)]. A common feature in the crystal packing of (3a) and (3b) is the presence of N-H⋯O hydrogen bonds, resulting in the formation of chains of mol-ecules running along the b-axis direction in the case of (3a), or inversion dimers for (3b). The most prominent contributions to the surface contacts are those in which H atoms are involved, as confirmed by an analysis of the Hirshfeld surface.
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Affiliation(s)
- Trung Vu Quoc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Linh Nguyen Ngoc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Duong Tran Thi Thuy
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
- Bien Hoa Gifted High School, 86 Chu Van An Street, Phu Ly City, Ha Nam Province, Vietnam
| | - Manh Vu Quoc
- Faculty of Foundation Science, College of Printing Industry, Phuc Dien, Bac Tu Liem, Hanoi, Vietnam
| | - Thien Vuong Nguyen
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Yen Oanh Doan Thi
- Publishing House for Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Luc Van Meervelt
- Department of Chemistry, KU Leuven, Biomolecular Architecture, Celestijnenlaan 200F, Leuven (Heverlee), B-3001, Belgium
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Vu Quoc T, Nguyen Ngoc L, Do Ba D, Pham Chien T, Nguyen Huy H, Van Meervelt L. Crystal structure and Hirshfield surface analysis of 4-phenyl-3-(thio-phen-3-ylmeth-yl)-1 H-1,2,4-triazole-5(4 H)-thione. Acta Crystallogr E Crystallogr Commun 2018; 74:812-815. [PMID: 29951236 PMCID: PMC6002826 DOI: 10.1107/s2056989018007193] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/14/2018] [Indexed: 11/24/2022]
Abstract
In the title compound, C13H11N3S2, the phenyl ring is twisted from the 1,2,4-triazole plane by 63.35 (9)° and by 47.35 (9)° from the thio-phene plane. In the crystal, chains of mol-ecules running along the c-axis direction are formed by N-H⋯S inter-actions [graph-set motif C(4)]. The 1,2,4-triazole and phenyl rings are involved in π-π stacking inter-actions [centroid-centroid distance = 3.4553 (10) Å]. The thio-phene ring is involved in C-H⋯S and C-H⋯π inter-actions. The inter-molecular inter-actions in the crystal packing were further analysed using Hirshfield surface analysis, which indicates that the most significant contacts are H⋯H (35.8%), followed by S⋯H/H⋯S (26.7%) and C⋯H/H⋯C (18.2%).
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Affiliation(s)
- Trung Vu Quoc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Linh Nguyen Ngoc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Dai Do Ba
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Thang Pham Chien
- Department of Chemistry, Hanoi University of Science, 19 Le Thanh Tong Street, Ha Ba Discrict, Hanoi, Vietnam
| | - Hung Nguyen Huy
- Department of Chemistry, Hanoi University of Science, 19 Le Thanh Tong Street, Ha Ba Discrict, Hanoi, Vietnam
| | - Luc Van Meervelt
- Department of Chemistry, KU Leuven, Biomolecular Architecture, Celestijnenlaan 200F, Leuven (Heverlee), B-3001, Belgium
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Nguyen Ngoc L, Vu Quoc T, Duong Quoc H, Vu Quoc M, Truong Minh L, Thang Pham C, Van Meervelt L. Green synthesis and crystal structure of 3-(benzo-thia-zol-2-yl)thio-phene. Acta Crystallogr E Crystallogr Commun 2017; 73:1647-1651. [PMID: 29152342 PMCID: PMC5683482 DOI: 10.1107/s2056989017014530] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 10/09/2017] [Indexed: 11/30/2022]
Abstract
A solvent-free microwave-assisted synthesis of the title compound is presented together with its crystal structure which is characterized by the herringbone motif in the packing. The title compound, C11H7NS2, was prepared in high yield (87%) using a solvent-free microwave-assisted synthesis. The structure shows whole-molecule disorder with occupancies for two orientations (A and B) of 0.4884 (10) and 0.5116 (10), respectively. The thiophene and benzothiazole rings are almost planar and make dihedral angles of 10.02 (18) and 12.54 (19)° for orientations A and B, respectively. Slipped π–π stacking between the aromatic rings, together with C—H⋯π, C—H⋯S and C—H⋯N interactions, result in a herringbone motif in the crystal packing.
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Affiliation(s)
- Linh Nguyen Ngoc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Trung Vu Quoc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Hoan Duong Quoc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Manh Vu Quoc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam.,Faculty of Foundation Science, College of Printing Industry, Phuc Dien, Bac Tu Liem, Hanoi, Vietnam
| | - Luong Truong Minh
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Chien Thang Pham
- VNU University of Science, Department of Inorganic Chemistry, 19 Le Thanh Tong Street, Hoan Kiem District, Hanoi, Vietnam
| | - Luc Van Meervelt
- Department of Chemistry, KU Leuven, Biomolecular Architecture, Celestijnenlaan 200F, Leuven (Heverlee), B-3001, Belgium
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Vu Quoc T, Nguyen Ngoc L, Do Truc V, Duong Khanh L, Ha Manh H, Thang Pham C, Van Meervelt L. Crystal structure of 4-amino-3-(thio-phen-3-ylmeth-yl)-1 H-1,2,4-triazole-5(4 H)-thione. Acta Crystallogr E Crystallogr Commun 2017; 73:1389-1392. [PMID: 28932482 PMCID: PMC5588588 DOI: 10.1107/s2056989017012191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 08/22/2017] [Indexed: 11/25/2022]
Abstract
In the title compound, C7H8N4S2, the thio-phene ring shows rotational disorder over two orientations in a 0.6957 (15):0.3043 (15) ratio. The plane of the 1,2,4-triazole ring makes a dihedral angle of 75.02 (17)° with the major-disorder component of the thiophene ring. In the crystal, two types of inversion dimers, described by the graph-set motifs R22(8) and R22(10), are formed by N-H⋯S inter-actions. Chains of mol-ecules running in the [101] direction are linked by weaker N-H⋯N inter-actions. The thio-phene ring is involved in π-π and C-H⋯π inter-actions.
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Affiliation(s)
- Trung Vu Quoc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Linh Nguyen Ngoc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Vy Do Truc
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Linh Duong Khanh
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Hung Ha Manh
- Faculty of Basic Sciences, University of Mining and Geology, Duc Thang, Bac Tu Liem, Hanoi, Vietnam
| | - Chien Thang Pham
- VNU University of Science, Department of Inorganic Chemistry, 19 Le Thanh Tong Street, Hoan Kiem Discrict, Hanoi, Vietnam
| | - Luc Van Meervelt
- Department of Chemistry, KU Leuven, Biomolecular Architecture, Celestijnenlaan 200F, Leuven (Heverlee), B-3001, Belgium
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Vu Quoc T, Nguyen Ngoc L, Nguyen Tien C, Thang Pham C, Van Meervelt L. Crystal structure of N-(4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl)-2-(thiophen-3-yl)acetamide. Acta Crystallogr E Crystallogr Commun 2017. [PMID: 28638655 PMCID: PMC5458320 DOI: 10.1107/s2056989017007629] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The title compound, C9H8N2O2S3, crystallizes with two molecules (AandB) in the asymmetric unit. Both have similar conformations (overlay r.m.s. deviation = 0.209 Å) and are linked by an N—H...O hydrogen bond. In both molecules, the thiophene rings show orientational disorder, with occupancy factors of 0.6727 (17) and 0.3273 (17) for moleculeA, and 0.7916 (19) and 0.2084 (19) for moleculeB. The five-membered rings make an angle of 79.7 (2)° in moleculeAand an angle of 66.8 (2)° in moleculeB. In the crystal, chains of molecules running along thea-axis direction are linked by N—H...O hydrogen bonds. The interaction of adjacent chains through N—H...O hydrogen bonds leads to two types of ring structures containing four molecules and described by the graph-set motifsR44(18) andR42(14).
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Glaziou P, Cartel JL, Moulia-Pelat JP, Ngoc LN, Chanteau S, Plichart R, Grosset JH. Tuberculosis in leprosy patients detected between 1902 and 1991 in French Polynesia. Int J Lepr Other Mycobact Dis 1993; 61:199-204. [PMID: 8371028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
From 1902 onward, notification and follow up of leprosy patients has been systematic in French Polynesia. Since 1960, a tuberculosis control program and a register has also been implemented. From 1902 to 1959, 673 cases of leprosy were detected [346 multibacillary (MB), 138 paucibacillary (PB), and 179 unclassified due to the loss of medical files by the time of classification which was done during the 1980s]. Of these 673 cases, 89 (13.2%) died from tuberculosis, giving a mean annual death rate of tuberculosis in leprosy patients of 232 per 100,000. Mortality from tuberculosis in leprosy patients detected between 1901 and 1930 was 20.7%, and decreased to 8.04% in patients detected from 1931 to 1959. In total, it was estimated that 26.4% of the leprosy cases had developed tuberculosis. From 1960 to 1991, 350 new cases of leprosy were detected (141 MB, 209 PB). Of them, 12 (3.4%) developed tuberculosis (7 before detection of leprosy, 5 after detection of leprosy). The dramatic decrease of the proportion of leprosy patients who developed tuberculosis between the periods 1902-1959 (26.4%) and 1960-1991 (3.4%) might be related to the important decline of the tuberculosis situation since 1960. From 1902 to 1959, mortality from tuberculosis occurred significantly more frequently in MB patients (13%) than in PB patients [4%, relative risk (RR) = 3.21, p = 0.003]. From 1960 to 1991, the incidence of tuberculosis seemed more frequent in MB patients (RR = 2.96, p = 0.07) whatever the sequence of detection of the two diseases. Our study suggests that lepromatous patients could share factors of susceptibility to mycobacterial diseases with patients developing tuberculosis.
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Affiliation(s)
- P Glaziou
- Institut Territorial de Récherches Médicales Louis Malardé, Papéete, Tahiti, French Polynesia
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