In the title compound, C(12)H(10)Br(2)O(3), the dihedral angle between the furan-5(2H)-one ring and the benzene ring is 1.2 (3)°. Two intra-molecular C-H⋯O inter-actions occur in the mol-ecule, both of which generate S(6) rings. The bromo-ethyl fragment is disordered over two sets of sites in a 0.773 (8):0.227 (8) ratio. In the crystal, inversion dimers linked by pairs of C-H⋯π inter-actions occur.
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http://dx.doi.org/10.1107/S1600536810044508 | DOI Listing |
IUCrdata
October 2024
Chemistry Department, Bindura University of Science Education, Private Bag 1020, Bindura, Zimbabwe.
The mol-ecular structure of the title compound, CHNO reveals non-co-planarity between the central formamidine backbone and each of the outer meth-oxy- and -propyl- substituted benzene rings with dihedral angles of 7.88 (15) and 81.17 (15)°, respectively, indicating significant twists in the mol-ecule.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
October 2024
Institut für Organische Chemie Technische Universität Bergakademie, Freiberg, Leipziger Str 29 09599 Freiberg/Sachsen Germany.
Crystal growth of 2-(3,4,5-triphen-ylphen-yl)acetic acid () from aceto-nitrile yields a monosolvate, CHO·CHCN, of the space group 1. In the crystal, the title mol-ecule adopts a conformation in which the three phenyl rings are arranged in a paddlewheel-like fashion around the central arene ring and the carboxyl residue is oriented nearly perpendicular to the plane of this benzene ring. Inversion-symmetric dimers of O-H⋯O-bonded mol-ecules of represent the basic supra-molecular entities of the crystal structure.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
September 2024
Department of Chemistry 120 Trustee Road University of Rochester,Rochester NY 14627 USA.
IUCrdata
August 2024
Institute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, M. Ulugbek St 83, Tashkent, 100125, Uzbekistan.
In the title salt [systematic name: 4-(3-carb-oxy-1-ethyl-6-fluoro-4-oxo-1,4-di-hydro-quin-olin-7-yl)piperazin-1-ium nitrate], CHFNO ·NO , proton transfer from nitric acid to the N atom of the piperazine ring of norfloxacin has occurred to form a mol-ecular salt. In the extended structure, N-H⋯O hydrogen bonds link alternating cations and anions into [100] chains, which are reinforced by aromatic π-π stacking inter-actions between the quinoline moieties of the norfloxacinium cations.
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May 2024
Department of Chemistry, National College, Thiruchirappalli, Tamil Nadu, India.
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