Showing papers by "P A College of Engineering published in 2012"
TL;DR: A series of 1,3,5-triaryl-2-pyrazolines 2a–g were synthesized by the reaction of 4,4′-disubstituted chalcone with phenyl hydrazine and exhibited significant antimicrobial, analgesic, DPPH scavenging activities and molecular binding.
Abstract: A series of 1,3,5-triaryl-2-pyrazolines 2a–g were synthesized by the reaction of 4,4′-disubstituted chalcone with phenyl hydrazine. All these compounds were characterized by NMR, IR and mass spectral and single crystal XRD data. All the synthesized products were screened for their in vitro antimicrobial, analgesic and antioxidant properties. The docking studies were carried out for these compounds against the active site of methionyl-tRNA synthetase (metRS). Some of the tested compounds exhibited significant antimicrobial, analgesic, DPPH scavenging activities and molecular binding.
57 citations
TL;DR: In this paper, a Self adaptive Hybrid Differential Evolution (SaHDE) technique has been employed to solve the phase balancing problem in power distribution systems, and the effectiveness of the proposed method is demonstrated through modified IEEE 34 node and IEEE 123 node distribution systems.
39 citations
16 Jul 2012
TL;DR: In this article, a new filtering method is presented to remove Rician noise from magnetic resonance image, which is based on Neutrosophic set (NS) approach of wiener filtering.
Abstract: In this paper, a new filtering method is presents to remove Rician noise from magnetic resonance image. This filter is based on Neutrosophic set (NS) approach of wiener filtering. A Neutrosophic Set (NS), a part of neutrosophy theory, studies the origin, nature, and scope of neutralities, as well as their interactions with different ideational spectra. Now, we apply the neutrosophic s e t into image domain and define some concepts and operators for image denoising. The image is transformed into NS domain, described using three membership sets: True (T), Indeterminacy (I) and False (F). The entropy of the neutrosophic set is defined and employed to measure the indeterminacy. The ω-wiener filtering operation is used on T and F to decrease the set indeterminacy and remove noise. The experiments have conducted on simulated MR images from Brainweb database with Rician noise added. The visual and the diagnostic quality of the denoised image are well preserved. The performance of this filter is compared with anisotropic diffusion filter (ADF) and unbiased non local mean filter (UNLM).
22 citations
13 Dec 2012
TL;DR: New functionalized terphenyl derivatives incorporating various heterocyclic rings are prepared by using 4,4′′-difluoro-5′-hydroxy-1,1′:3′,1″′-terphenyl-4′-carbohydrazide as a key intermediate derived from 4, 4′-DIFluoro chalcone, a versatile synthone.
Abstract: New functionalized terphenyl derivatives incorporating various heterocyclic rings are prepared by using 4,4′′-difluoro-5′-hydroxy-1,1′:3′,1′′-terphenyl-4′-carbohydrazide as a key intermediate derived from 4,4′-difluoro chalcone, a versatile synthone. All the derivatives are characterized by 1H NMR, IR, and mass spectral data. All the synthesized products are screened for their in vitro antimicrobial and antioxidant properties. The majority of the tested compounds exhibited significant antioxidant activity and some of them showed good antimicrobial activity.
15 citations
TL;DR: In the title compound, C21H16F2O2, the central benzene ring is inclined at dihedral angles of 30.91”(8) and 46.88 (7)° to the two terminal fluoro-substituted rings.
Abstract: In the title compound, C21H16F2O2, the central benzene ring is inclined at dihedral angles of 30.91 (8) and 46.88 (7)° to the two terminal fluoro-substituted rings. The dihedral angle between the two terminal fluoro-subsituted rings is 68.34 (8)°. An intramolecular C—H⋯O hydrogen bond generates an S(6) ring motif. The crystal structure is stabilized by weak C—H⋯π interactions.
11 citations
TL;DR: Hepatopancreatic tissues of shrimps were homogenized at various pestle speed and time intervals at a constant jerk of 15 passes/min on a narrow space using 0.1 M Tris-HCl buffer of pH 8.4 at 4°C to determine release of proteins and alkaline phosphatase.
Abstract: Hepatopancreatic tissues of shrimps were homogenized at various pestle speed and time intervals at a constant jerk of 15 passes/min on a narrow space using 0.1 M Tris-HCl buffer of pH 8.4 at 4°C. Release of proteins and alkaline phosphatase were determined by estimating the quantity of protein and alkaline phosphatase activity in each homogenate at the end of the experiments. Optimum condition for the homogenization of the hepatopancreatic cells was achieved at operating speeds of 3,000 rpm for 10 min in the homogenizer. Increase in pestle speed beyond 3,000 rpm for 10 min have no effect on the release of protein. Increasing the disruption speed above 3,000 rpm decreases the specific activity of alkaline phosphatase release, while extending the time of homogenization beyond 10 min at 3,000 rpm or the speed of pestle beyond 3,000 rpm for 10 min caused shear damage to the enzyme.
9 citations
TL;DR: In the title compound, C14H16N2OS, the thiazole ring is essentially planar (r.m.s. deviation = 0.005 Å) and it forms a dihedral angle of 75.21 (8)° with the benzene ring.
Abstract: In the title compound, C14H16N2OS, the thiazole ring is essentially planar (r.m.s. deviation = 0.005 A) and it forms a dihedral angle of 75.21 (8)° with the benzene ring. In the crystal, molecules are linked into inversion dimers by pairs of N—H⋯N hydrogen bonds to generate R22(8) loops.
9 citations
TL;DR: The fuzzy set theoretic approach to perform feature selection (or dimensionality reduction) and session weight assignment and the traditional approach of direct elimination of small sessions and low support count URLs are compared.
Abstract: The explosive growth in the information available on the Web has necessitated the need for developing Web personalization systems that understand user preferences to dynamically serve customized content to individual users. Web server access logs contain substantial data about the accesses of users to a Web site. Hence, if properly exploited, the log data can reveal useful information about the navigational behaviour of users in a site. In order to reveal the information about user preferences from, Web Usage Mining is being performed. Web Usage Mining is the application of data mining techniques to web usage log repositories in order to discover the usage patterns that can be used to analyze the user’s navigational behavior. WUM contains three main steps: preprocessing, knowledge extraction and results analysis. During the preprocessing stage, raw web log data is transformed into a set of user profiles. Each user profile captures a set of URLs representing a user session. Clustering can be applied to this sessionized data in order to capture similar interests and trends among users’ navigational patterns. Since the sessionized data may contain thousands of user sessions and each user session may consist of hundreds of URL accesses, dimensionality reduction is achieved by eliminating the low support URLs. Very small sessions are also removed in order to filter out the noise from the data. But direct elimination of low support URLs and small sized sessions may results in loss of a significant amount of information especially when the count of low support URLs and small sessions is large. We propose a fuzzy solution to deal with this problem by assigning weights to URLs and user sessions based on a fuzzy membership function. After assigning the weights we apply a "Fuzzy c-Mean Clustering" algorithm to discover the clusters of user profiles. In this paper, we describe our fuzzy set theoretic approach to perform feature selection (or dimensionality reduction) and session weight assignment. Finally we compare our soft computing based approach of dimensionality reduction with the traditional approach of direct elimination of small sessions and low support count URLs. Our results show that fuzzy feature evaluation and dimensionality reduction results in better performance and validity indices for the discovered clusters.
9 citations
01 Mar 2012
TL;DR: In this paper, a new control algorithm implemented with Adaptive Hysteresis Current Control technique for Shunt Active Filter is proposed, where a three-phase six-pulse converter with resistive load is considered as the nonlinear load.
Abstract: A new control algorithm implemented with Adaptive Hysteresis Current Control technique for Shunt Active Filter is proposed. A three-phase six-pulse converter with resistive load is considered as the non-linear load. Many switching methods are used to produce switching pulse which leads to the generation of reference current. Hysteresis Current Control is widely used due to its simplicity in implementation, fast and accurate response. However, the main issue is its variable switching frequency which leads to extra switching losses and injecting high-frequency harmonics into the system current. To solve this problem, an Adaptive Hysteresis Current Control has been introduced which produces hysteresis bandwidth which instantaneously results in smoother and constant switching frequency. By this technique the overall Total Harmonic Distortion rate has been reduced than the Hysteresis Current Control technique. The design concept of the proposed Shunt Active Filter using the PI based control algorithm is verified through simulation and the results proved the effectiveness of the proposed algorithm
9 citations
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TL;DR: In this paper, the I-function of two variables analogous to the I function of one variable was studied and the conditions for convergence, series representation, behavior for small values, elementary properties and some special cases for the I functions of two variable are discussed.
Abstract: In our present investigation we propose to study and develop the I-function of two variables analogous to the I-function of one variable introduced and studied by one of the authors[24]. The conditions for convergence, series representation, behavior for small values, elementary properties and some special cases for the I-functions of two variables are also discussed.
9 citations
TL;DR: In this paper, the cyclic voltammetric, modulatory effect on oxidative stress markers against radiation induced oxidative stress in E. coli bacteria and antiviral activities of two bischalcone derivatives (2E,5E)-2,5-bis(3-methoxy-4-hydroxy-benzylidene)-cyclopentanone (B1) and B2) is reported.
Abstract: This work reports the cyclic voltammetric, modulatory effect on oxidative stress markers against radiation induced oxidative stress in E. coli bacteria and antiviral activities of two bischalcone derivatives (2E,5E)-2,5-bis(3-methoxy-4-hydroxy-benzylidene)-cyclopentanone (B1) and (2E,5E)-2,5-bis(4-fluorobenzylidene)-cyclopentanone (B2). The reducing ability of B1 and B2 was determined by cyclic voltammetry. The anodic peak current i
pa and anodic peak potential Epa of B1 and B2 were −154.7, −99 μA, and −0.15 V, 0.0125 V, respectively. The low anodic current and low anodic peak potential imply the good reducing ability of the molecules. The radioprotective effect of bischalcones was studied by gamma radiation induced oxidative stress in E.
coli K12 at 0.2 and 0.4 Gy. The bacteria samples treated with B1 and irradiated showed diminished level of TBARS, an oxidative stress marker. The levels of SOD and CAT antioxidant enzymes were brought to near basal level for B1 treated and irradiated bacteria with respect to the control. The protective effect of the bischalcone derivatives against radiation was further supported by determining colony forming units (CFU) of bacteria in pre- and post-irradiated samples. Further, B2 showed 73.69% of inhibition of buffalopox virus and camelpox virus.
TL;DR: In the title compound, C20H21N3O2S, the 2,3-dihydro-1H-pyrazole ring is nearly planar (r.m.s. deviation = 0.023 Å) and forms dihedral angles of 16.96 (6) and 38.93 (6)° with the benzene and phenyl rings, respectively.
Abstract: In the title compound, C20H21N3O2S, the 2,3-dihydro-1H-pyrazole ring is nearly planar (r.m.s. deviation = 0.023 A) and forms dihedral angles of 16.96 (6) and 38.93 (6)° with the benzene and phenyl rings, respectively. The dihedral angle between the benzene and phenyl rings is 55.54 (6)°. The molecular conformation is consolidated by an intramolecular C—H⋯O hydrogen bond, which forms an S(6) ring. In the crystal, inversion dimers linked by pairs of N—H⋯Op (p = pyrazole) hydrogen bonds generate R22(10) loops. The dimers are linked by C—H⋯O hydrogen bonds into sheets lying parallel to (100).
TL;DR: Antiangiogenic effect of 3a–c showed reduction in ascites volume, cell number, and induced apoptotic bodies in EAT cells in tested animals and growth inhibition of the HeLa cells and antiangiogenesis was mediated by promoting apoptosis which was confirmed by DNA fragmentation study.
Abstract: In this study, three, bisarylidene cyclopentanones (curcumin analogs) 3a–c are synthesized by Claisen Schmidt condensation reaction. Antiangiogenic effects of the compounds were studied in Ehrlich ascites tumor (EAT) cells transplanted mouse in vivo. Antiangiogenic effect of 3a–c showed reduction in ascites volume, cell number, and induced apoptotic bodies in EAT cells in tested animals. The antiproliferative effects of the 3a–c were determined at different concentrations by MTT assay on HepG2 and HeLa cells. The compounds showed significant antiproliferative activity at 40 μM concentration. Compound 3a (fluoro derivative) showed highest antiproliferative effect with the IC50 value 39 and 48 μm for HeLa and HepG2, respectively. Growth inhibition of the HeLa cells and antiangiogenesis was mediated by promoting apoptosis which was confirmed by DNA fragmentation study.
TL;DR: The title compound, C14H11BrClNO, consists of chlorobenzene and bromobenzenes units which are linked at either end of the N-methylpropionamide group and N—H⋯O hydrogen bonds link the molecules into chains along [010].
Abstract: The title compound, C14H11BrClNO, consists of chlorobenzene and bromobenzene units which are linked at either end of the N-methylpropionamide group. The chlorobenzene unit [maximum deviation = 0.005 (4) A] makes a dihedral angle of 68.21 (19)° with the bromobenzene unit [maximum deviation = 0.012 (3) A]. In the crystal, N—H⋯O hydrogen bonds link the molecules into chains along [010].
TL;DR: In the title solvate, C47H37N3O3·C4H8O, the cyclohexane ring adopts a chair conformation and the plane through its near coplanar atoms forms dihedral angles of 82.58 (7)°, with the three pyridine rings and the two attached benzene rings.
Abstract: In the title solvate, C47H37N3O3·C4H8O, the cyclohexane ring adopts a chair conformation and the plane through its near coplanar atoms forms dihedral angles of 82.58 (7), 89.27 (7), 60.30 (8), 54.54 (7) and 72.03 (7)°, respectively, with the three pyridine rings and the two attached benzene rings. The rings of the biphenyl units are twisted from each other, making dihedral angles of 35.27 (7) and 45.41 (7)°. All the rings are in equatorial orientations in the cyclohexane ring, except for the C=O-bonded pyridine ring in position 1, which is axial. Intramolecular O—H⋯N and C—H⋯O hydrogen bonds form one S(5) and three S(6) ring motifs. In the crystal, molecules are linked via C—H⋯O hydrogen bonds into a chain along the c axis. The crystal structure also features weak C—H⋯π interactions and aromatic π–π stacking [centroid–centroid distances = 3.5856 (10) and 3.7090 (9) A].
TL;DR: In the title compound, C19H18BrFN2O, the benzene rings form dihedral angles of 5.48 (7)° with the mean plane of the 4,5-dihydro-1H-pyrazole ring (r.m.s. deviation = 0.0849 Å), which approximates to an envelope conformation with the –CH2– group as the flap.
Abstract: In the title compound, C19H18BrFN2O, the benzene rings form dihedral angles of 5.38 (7) and 85.48 (7)° with the mean plane of the 4,5-dihydro-1H-pyrazole ring (r.m.s. deviation = 0.0849 A), which approximates to an envelope conformation with the –CH2– group as the flap. The dihedral angle between the benzene rings is 82.86 (7)°. In the crystal, C—H⋯F and C—H⋯O hydrogen bonds link the molecules to form inversion dimers and together these generate chains along [011]. The crystal packing also features C—H⋯π interactions.
TL;DR: In the title molecule, C17H14N2OS, the mean plane of the acetamide group forms dihedral angles with the two phenyl rings and the thiazole ring, respectively, and in the crystal, N—H⋯N hydrogen bonds link pairs of molecules into inversion dimers with R 2 2(8) ring motifs.
Abstract: In the title molecule, C17H14N2OS, the mean plane of the acetamide group forms dihedral angles of 75.79 (5), 81.85 (6) and 12.32 (5)° with the two phenyl rings and the thiazole ring, respectively. In the crystal, N—H⋯N hydrogen bonds link pairs of molecules into inversion dimers with R22(8) ring motifs. The crystal packing is further stabilized by C—H⋯π interactions and by π–π interactions with a centroid–centroid distance of 3.6977 (5) A.
TL;DR: In the title molecule, C17H14BrFN2O, the benzene rings form dihedral angles of 6.58 (6) and 85.31 (6)° with the mean plane of the 4,5-dihydro-1H-pyrazole ring (r.m.s. deviation = 0.0231 Å).
Abstract: In the title molecule, C17H14BrFN2O, the benzene rings form dihedral angles of 6.58 (6) and 85.31 (6)° with the mean plane of the 4,5-dihydro-1H-pyrazole ring (r.m.s. deviation = 0.0231 A). The latter ring is planar with a maximum deviation of 0.032 (1) A The dihedral angle between the benzene rings is 78.75 (6)°. In the crystal, weak C—H⋯O and C—H⋯F hydrogen bonds link the molecules into corrugated layers parallel to the ab plane.
TL;DR: In the title compound, C11H9FN2OS, the 1,3-thiazole ring is planar (r.m.s. deviation = 0.007 Å) and forms a dihedral angle of 73.75 (5)° with the benzene ring.
Abstract: In the title compound, C11H9FN2OS, the 1,3-thiazole ring is planar (r.m.s. deviation = 0.007 A) and forms a dihedral angle of 73.75 (5)° with the benzene ring. In the crystal, molecules are linked via pairs of N—H⋯N and C—H⋯F hydrogen bonds into chains along [100].
TL;DR: In the title compound, C17H15FN2O, the pyrazoline ring adopts a flattened envelope conformation, and a pair of C—H⋯O hydrogen bonds link neighbouring molecules, forming an inversion dimer.
Abstract: In the title compound, C17H15FN2O, the pyrazoline ring adopts a flattened envelope conformation. The dihedral angle between the fluoro-substituted benzene ring and the phenyl ring is 69.20 (5)°. In the crystal, a pair of C—H⋯O hydrogen bonds link neighbouring molecules, forming an inversion dimer. The crystal structure is further consolidated by C—H⋯π interactions and by a π–π interaction with a centroid–centroid distance of 3.7379 (6) A.
TL;DR: In the title compound, C31H20F4N4, the pyrazole ring adopts an envelope conformation and forms a dihedral angle of 9.91 (6)° with the adjacent pyrimidine ring, which is superior to that of the fluoro-substituted benzene rings.
Abstract: In the title compound, C31H20F4N4, the pyrazole ring adopts an envelope conformation and forms a dihedral angle of 9.91 (6)° with the adjacent pyrimidine ring. The pyrimidine ring forms dihedral angles of 9.23 (6) and 2.16 (5)° with its adjacent fluoro-substituted benzene rings, whereas these angles are 88.22 (6) and 9.66 (6)° for the pyrazole ring and its adjacent benzene rings. In the crystal, molecules are linked by C—H⋯F hydrogen bonds into ribbons along [01-1]. The crystal packing is further stabilized by C—H⋯π and by π–π interactions, with centroid–centroid distances of 3.7428 (7) and 3.7630 (6) A.
TL;DR: In the title compound, C21H16BrFN2, the fluoro-substituted benzene ring is disordered over two orientations about the C—F bond and the C-C bond between the benzene and pyrazole groups with a site-occupancy ratio of 0.516 (8):0.484 (8).
Abstract: In the title compound, C21H16BrFN2, the fluoro-substituted benzene ring is disordered over two orientations about the C—F bond and the C—C bond between the benzene and pyrazole groups with a site-occupancy ratio of 0.516 (8):0.484 (8). The central pyrazole ring [maximum deviation = 0.035 (3) A] makes dihedral angles of 22.4 (2), 11.0 (2), 77.19 (16) and 7.44 (17)° with the two disorder components of the benzene ring, the bromo-substituted benzene ring and the phenyl ring, respectively. In the crystal, molecules are linked into a layer parallel to the bc plane through C—H⋯π interactions.
TL;DR: In the title compound, C11H9ClN2OS, the thiazole ring is nearly planar (r.m.s. deviation = 0.003 Å) and forms a dihedral angle of 64.18 (7)° with the bezene ring.
Abstract: In the title compound, C11H9ClN2OS, the thiazole ring is nearly planar (r.m.s. deviation = 0.003 A) and forms a dihedral angle of 64.18 (7)° with the bezene ring. In the crystal, inversion dimers linked by pairs of N—H⋯Nt (t = thiazole) hydrogen bonds generate R22(8) loops.
TL;DR: In the title molecule, C21H14BrFN4O4, the mean planes of the two nitro groups form dihedral angles of 3.768 (2) Å with the benzene ring to which they are attached, and π–π stacking interactions between the bromo- and dinitro-substituted rings are observed.
Abstract: In the title molecule, C21H14BrFN4O4, the mean planes of the two nitro groups form dihedral angles of 3.1 (2) and 7.1 (5)° with the benzene ring to which they are attached. The dinitro-substituted ring forms dihedral angles of 8.6 (2) and 71.9 (2)° with the bromo- and fluoro-substituted benzene rings, respectively. The dihedral angle between the bromo- and fluoro-substituted benzene rings is 80.6 (2)°. There is an intramolecular N—H⋯O hydrogen bond. In the crystal, pairs of weak C—H⋯O hydrogen bonds form inversion dimers. In addition, π–π stacking interactions between the bromo- and dinitro-substituted rings [centroid–centroid separation = 3.768 (2) A] are observed.
TL;DR: In the title compound, C15H10ClFO, the fluoro-substituted benzene ring forms a dihedral angle of 44.41 (6)° with the chloro-subStituted Benzene ring.
Abstract: In the title compound, C15H10ClFO, the fluoro-substituted benzene ring forms a dihedral angle of 44.41 (6)° with the chloro-substituted benzene ring. The only significant directional bonds in the crystal are weak C—H⋯π interactions.
01 Jan 2012
TL;DR: In this article, the Brinell hardness test was conducted on both matrix Al2024 and Beryl particulate composites before and after heat treatment, and the results showed that under identical heat treatment conditions, Beryl composites exhibited better hardness when compared with Al20 24 matrix alloy, while the density of the composite material decreases as the reinforcement content increases in the matrix material.
Abstract: In the present investigation, Al2024–Beryl particulate composites were fabricated by liquid metallurgy route by varying the weight percentage of beryl particulates from 0 wt% to 10 wt% in steps of 2 wt%. The cast matrix alloy and its composites have been subjected to solutionizing treatment at a temperature of 495°C for 2 hrs followed by quenching in different media such as air, water and ice. The quenched samples are then subjected to both natural and artificial ageing. Microstructural studies have been carried out to understand the nature of structure. The density values obtained using rule of mixtures and the experimental values obtained for Al2024 alloy and its composites were compared. The Brinell hardness test was conducted on both matrix Al2024 and Al2024–Beryl particulate composites before and after heat treatment. The density of the composite material decreases as the reinforcement content increases in the matrix material. However,under identical heat treatment conditions Al2024–Beryl particulate composites exhibited better hardness when compared with Al2024 matrix alloy.
TL;DR: The asymmetric unit of the title compound, C7H6ClN3S, consists of two crystallographically independent molecules (A and B) and the dihedral angle between the benzothiazole ring system and the hydrazine group is 8.71 (6)°.
Abstract: The asymmetric unit of the title compound, C7H6ClN3S, consists of two crystallographically independent molecules (A and B). The dihedral angle between the benzothiazole ring system and the hydrazine group is 8.71 (6)° in molecule A and 7.16 (6)° in molecule B. The N—N—C—N and N—N—C—S torsion angles involving the hydrazine group are 170.89 (9) and −9.96 (13)°, respectively, in molecule A and 172.50 (9) and −7.43 (13)°, respectively, in molecule B. In the crystal, neighbouring molecules are connected via pairs of N—H⋯N hydrogen bonds, generating R22(8) ring motifs, and are connected further by N—H⋯N hydrogen bonds into sheets lying parallel to the ab plane. The crystal studied was an inversion twin, the refined ratio of the twin components being 0.50 (3):0.50 (3).
TL;DR: In the title compound, C17H13NO3, the dihedral angle between the benzene rings is 31.21 (5)° and in the crystal, inversion dimers linked by pairs of C—H⋯O hydrogen bonds occur.
Abstract: In the title compound, C17H13NO3, the dihedral angle between the benzene rings is 31.21 (5)°. In the crystal, inversion dimers linked by pairs of C—H⋯O hydrogen bonds occur. A C—H⋯π interaction is also indicated.
TL;DR: The title compound, C32H18F4N4S2, is a disulfide symmetrically substituted with two diaza-meta-terphenyl groups that adopts a twisted conformation with a C—S—S-C torsion angle of −91.82 (7)°.
Abstract: The title compound, C32H18F4N4S2, is a disulfide symmetrically substituted with two diaza-meta-terphenyl groups. In the crystal, the molecule adopts a twisted conformation with a C—S—S—C torsion angle of −91.82 (7)°. One of the 4,6-(4-fluorophenyl)pyrimidine groups is virtually planar, with dihedral angles between the pyrimidine and benzene groups of 4.00 (8) and 5.44 (8)°, wheares the other is non-planar with analogues dihedral angles of 18.69 (8) and 26.60 (8)°. The planar 4,6-(4-fluorophenyl)pyrimidine groups are involved in π–π stacking interactions via their 4-fluorophenyl groups [centroid–centroid distances of 3.8556 (11) and 3.9284 (11) A] that assemble the molecules into columns extended along the a axis. In addition, the structure is stabilized by C—F⋯π [F⋯centroid = 3.4017 (16) A], C—H⋯F and C—H⋯π interactions.
TL;DR: In the title compound, C15H12N2OS, the naphthalene ring system forms a dihedral angle of 85.69 (6)° with the thiazole ring, and inversion dimers linked by pairs of N—H⋯N hydrogen bonds generate R 2 2(8) loops.
Abstract: In the title compound, C15H12N2OS, the naphthalene ring system [maximum deviation = 0.026 (1) A] forms a dihedral angle of 85.69 (6)° with the thiazole ring [maximum deviation = 0.010 (1) A]. In the crystal, inversion dimers linked by pairs of N—H⋯N hydrogen bonds generate R22(8) loops. The dimers are linked by C—H⋯O hydrogen bonds into chains propagating along [110].