[PDF] Top 20 Crystal structure of (E) 2 hydroxy 1,2 diphenylethan 1 one oxime
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Crystal structure of (E) 2 hydroxy 1,2 diphenylethan 1 one oxime
... the structure model by two equally disordered split positions [H3/H4] of this hydrogen ...the oxime moiety that acts as an H-atom donor forming mutual hydrogen bonds with the nitrogen atom of the ... See full document
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Crystal structure of (E) 4 {1 [2 (carbamothioyl)hydrazin 1 ylidene]ethyl}phenyl 4 methylbenzoate
... contains two molecules which are shown in Fig.1. The acetophenone thiosemicarbazone fragment in molecule A is almost planar with maximum deviation -0.087 Å and in molecule B maximun deviation is -0.592 Å. The ... See full document
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Crystal structures of (E) 4 [1 (2 carbamothioylhydrazinylidene)ethyl]phenyl acetate and (E) 4 [1 (2 carbamothioylhydrazinylidene)ethyl]phenyl benzoate
... substructure 2-(1-phenylethylidene)hydrazine-1-carbothio- amide yielded 100 ...hits. One of the compounds, (E)-4-(N- carbamothioylethanehydrazonoyl)phenyl 4-methylbenzoate ... See full document
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Crystal structure of (E) 3 (2,4 dimethoxyphenyl) 1 (1 hydroxynaphthalen 2 yl)prop 2 en 1 one
... attached to the naphthalene ring is involved in an intra- molecular O—H O hydrogen bond. The relative conforma- tion of the two double bonds in the enone group is s-cisoid. In the crystal, weak C—H O hydrogen ... See full document
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Crystal structure of (E) 3 (3,4 dimethoxyphenyl) 1 (1 hydroxynaphthalen 2 yl)prop 2 en 1 one
... Chalcones are 1,3-diphenyl-2-propene-1-ones, in which two aromatic rings are linked by a three carbon α,β-unsaturated carbonyl system.These are abundant in edible plants and are considered to be precursors ... See full document
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Crystal structure of (E) 1 (2,4 dinitrophenyl) 2 [(E) 5 phenyl 1 (p tolyl)pent 2 en 4 yn 1 ylidene]hydrazine
... For the biological activity of chalcones, and their arylthio- containing derivatives, see: Nielsen et al. (2005); Wu et al. (2011); Chate et al. (2012); Karaman et al. (2012). For the synthesis and crystal ... See full document
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Crystal structure of (E) 1 {2 [(5,5 dimethyl 1,3,2 dioxaphosphinan 2 yl)oxy]naphthalen 1 yl} N (4 fluorophenyl)methanimine
... naphthalene-2-ol in 10 ml of dry dichloromethane. The mixture was refluxed under a slow flow of nitrogen for 4 h. The solvent was reduced to 5 ml under vacuum and 3 ml of dry n-hexane were added to afford the ... See full document
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Crystal structure of (E) 3 (2 hydroxy 4 methylphenyl) 1 (2,4,6 trimethoxyphenyl)prop 2 en 1 one
... (Fig. 1). This molecule is constructed of two substituted aromatic rings (2-hydroxy-4- methylphenyl and 2,4,6-trimethoxyphenyl) and an enone (–CH CH—(C O)–) connecting ...sp 2 hybridi- zation of ... See full document
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Crystal structure of (E) 1,3 bis(6 methoxynaphthalen 2 yl)prop 2 en 1 one
... ml), 1-(6-methoxynaphthalen-2-yl) ethanone ...(40%, 2 ml) was then added drop wise and the resultant mixture was stirred at room temperature for 2 ...a 1 ml saturated solution in ... See full document
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Crystal structure of 2 methoxy 2 [(4 methylphenyl)sulfanyl] 1 phenylethan 1 one
... Geometry . All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of ... See full document
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Crystal structure of (E) N phenyl N′ [1 (thiophen 2 yl)ethylidene]formohydrazide
... (Fig. 1), the bond lengths do not show much variation in the core structure of the derivatives, and are similar to the standard values (Allen et ...and phenyl (C8–C13) rings are nearly perpendicular ... See full document
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Crystal structure of (E) 1 (1 hydroxynaphthalen 2 yl) 3 (2,3,4 trimethoxyphenyl)prop 2 en 1 one
... the crystal structure reported for (E)-1-(2-naphthyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (Lu et ...(Table 1) between the hydroxy group and the ... See full document
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Crystal structure of 1 {3 (4 methylphenyl) 5 [(E) 2 phenylethenyl] 4,5 dihydro 1H pyrazol 1 yl}ethan 1 one
... For background to pyrazoles, see: Samshuddin et al. (2012); Wiley et al. (1958); Sarojini et al. (2010); Lu et al.(1999). For crystal structures of pyrazoline-derived chalcones, see: Jasinski et al. (2012); Baktır ... See full document
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Crystal structures of 1 (4 chlorophenyl) 2 (diphenylphosphoryl)ethan 1 one and 1 (diphenylphosphoryl) 3,3 dimethylbutan 2 one
... Geometry . All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of ... See full document
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Crystal structure of 3 [(E) 2 (4 phenyl 1,3 thiazol 2 yl)hydrazin 1 ylidene]indolin 2 one
... An ethanolic solution of 1.81g (0.01 M) of 2-hydrazino-4-phenylthiazole was added drop wise to an etanolic solution of 1.47g (0.01 M) of isatin with constant stirring. After the complete addition, the reaction ... See full document
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Crystal structure of 2 [(E) 2 (2 chlorobenzylidene)hydrazin 1 yl] 4 phenyl 1,3 thiazole
... Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England, c Chemistry Department, Faculty of Science, Mini University, 61519 El-Minia, Egypt, d Department of Physics, Faculty ... See full document
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Crystal structure of the chalcone (E) 3 (furan 2 yl) 1 phenylprop 2 en 1 one
... The crystal packing does not present geometrical parameters corresponding to classical hydrogen bonding (Gilli & Gilli, 2009; Steiner, 2002), neither intra- nor ...the crystal, centrosymmetrically ... See full document
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Crystal structure, Hirshfeld surface analysis and DFT studies of 1 [r 2,c 6 diphenyl t 3 (propan 2 yl)piperidin 1 yl]ethan 1 one
... t-3-Isopropyl-r-2,c-6-diphenylpiperidin-4-one was reduced to the corresponding piperidine using the Wolf–Kishner reduc- tion (Ravindran & Jeyaraman, 1992). Piperidine-4-one (10 mmol) was treated ... See full document
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Crystal structure of 2 [2 phenyl 1 (phenylsulfonyl)ethyl] 1 phenylsulfonyl 1H indole
... methylene-linked phenyl ring is twisted at an angle of ...molecular structure features two short intramolecular C—H O contacts, which both generate S(6) ...the crystal, molecules are linked by C—H O ... See full document
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Crystal structure of 3 (morpholin 4 yl) 1 phenyl 3 (pyridin 2 yl)propan 1 one
... To an ethanolic solution of acetophenone (3.0 ml, 0.025 mol) taken in a round bottom flask, morpholine (2.1 ml, 0.025 mol) and pyridine-2-carboldehyde (2.6 ml, 0.025 mol) were added. The reaction mixture was kept ... See full document
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