Results 31 to 40 of about 6,874,902 (263)

Crystal structure and optical properties of fused-ring chalcone (E)-3-(anthracen-9-yl)-1-(4-nitrophenyl)prop-2-en-1-one

Acta Crystallographica Section E: Crystallographic Communications, 2019
The title compound, C23H15NO3, adopts an s-cis conformation with respect to the ethylene C=C and carbonyl C=O double bonds in the enone unit. The molecule is significantly twisted with a dihedral angle of 48.63 (14)° between the anthracene ring system ...
Muhamad Fikri Zaini, Ibrahim Abdul Razak, Wan Mohd Khairul, Suhana Arshad   +3 more
doaj   +1 more source

Crystal structure and optical spectroscopic analyses of (E)-3-(1H-indol-2-yl)-1-(4-nitrophenyl)prop-2-en-1-one hemihydrate

Acta Crystallographica Section E: Crystallographic Communications, 2018
The asymmetric unit of the title compound, 2C17H12N2O3·H2O comprises two molecules of (E)-3-(1H-indol-2-yl)-1-(4-nitrophenyl)prop-2-en-1-one and a water molecule. The main molecule adopts an s-cis configuration with respect to the C=O and C=C bonds.
Muhamad Fikri Zaini, Ibrahim Abdul Razak, Wan Mohd Khairul, Suhana Arshad   +3 more
doaj   +1 more source

Conformational dimorphism of 2,2′-methylenebis(isoindoline-1,3-dione)

Acta Crystallographica Section E: Crystallographic Communications, 2019
In this study, a new monoclinic polymorph (space group C2/c) of 2,2′-methylenebis(isoindoline-1,3-dione), C17H10N2O4, is reported and compared to the previously reported triclinic polymorph (space group P\overline{1}).
Tze Shyang Chia, Huey Chong Kwong, Ai Jia Sim, Weng Zhun Ng, Qin Ai Wong, C. S. Chidan Kumar, Ching Kheng Quah, Md. Azharul Arafath   +7 more
doaj   +1 more source

Crystal structure of a second monoclinic polymorph of 3-methoxybenzoic acid with Z′ = 1

Acta Crystallographica Section E: Crystallographic Communications, 2019
A new polymorphic form of the title compound, C8H8O3, is described in the centrosymmetric monoclinic space group P21/c with Z′ = 1 as compared to the first polymorph, which crystallizes with two conformers (Z′ = 2) in the asymmetric unit in the same ...
Tze Shyang Chia, Huey Chong Kwong, Qin Ai Wong, Ching Kheng Quah, Md. Azharul Arafath   +4 more
doaj   +1 more source

2,4-Dichloro-N-(2,5-dioxopyrrolidin-1-yl)benzamide

IUCrData, 2018
In the title compound, C11H8Cl2N2O3, the plane of the pyrrolidine ring (r.m.s. deviation = 0.065 Å) makes a dihedral angle of 52.9 (2)° with the plane of the benzene ring.
Jigmat Stondus, Sumati Anthal, S. Karanth, B. Narayana, B. K. Sarojini, Rajni Kant   +5 more
doaj   +1 more source

Spotlight on Alkali Metals: The Structural Chemistry of Alkali Metal Thallides

Crystals, 2020
Alkali metal thallides go back to the investigative works of Eduard Zintl about base metals in negative oxidation states. In 1932, he described the crystal structure of NaTl as the first representative for this class of compounds.
Stefanie Gärtner
doaj   +1 more source

Serial X-ray Crystallography

Crystals, 2022
Serial crystallography (SX) is an emerging technique to determine macromolecules at room temperature. SX with a pump–probe experiment provides the time-resolved dynamics of target molecules.
Ki Hyun Nam
doaj   +1 more source

Benzofuranyl Esters: Synthesis, Crystal Structure Determination, Antimicrobial and Antioxidant Activities

Molecules, 2015
A series of five new 2‐(1‐benzofuran‐2‐yl)‐2‐oxoethyl 4-(un/substituted)benzoates 4(a–e), with the general formula of C8H5O(C=O)CH2O(C=O)C6H4X, X = H, Cl, CH3, OCH3 or NO2, was synthesized in high purity and good yield under mild conditions.
C. S. Chidan Kumar, Li Yee Then, Tze Shyang Chia, Siddegowda Chandraju, Yip-Foo Win, Shaida Fariza Sulaiman, Nurul Shafiqah Hashim, Kheng Leong Ooi, Ching Kheng Quah, Hoong-Kun Fun   +9 more
doaj   +1 more source

Polymorph of (E)-N′-(4-chlorobenzylidene)isonicotinohydrazide monohydrate

IUCrData, 2018
The title hydrate, C13H10ClN3O·H2O, is the orthorhombic polymorph of the previously reported monoclinic compound [Fun et al. (2012). Acta Cryst. E68, o2303–o2304).
Jigmat Stondus, Sumati Anthal, A. Jayashree, B. Narayana, B. K. Sarojini, Rajni Kant   +5 more
doaj   +1 more source

Structure of human transthyretin complexed with bromophenols: a new mode of binding [PDF]

, 2000
The binding of two organohalogen substances, pentabromophenol (PBP) and 2,4,6-tribromophenol (TBP), to human transthyretin (TTR), a thyroid hormone transport protein, has been studied by in vitro competitive binding assays and by X-ray crystallography ...
Meerts, I.A.T.M., Johnson, L., Meerts, I A, Brouwer, A, Cook, Atlanta, Bergman, A, Ghosh, M., Cook, A., Bergman, A., Johnson, L N, Brouwer, A., Johnson, L.N., Ghosh, M   +12 more
core   +1 more source