Molecules of the title compound, C(13)H(9)ClO(2), contain an intramolecular O-H...O hydrogen bond, and the two aromatic rings are inclined at 57.02 (3) degrees with respect to one another. The crystal structure is supported by C-H...O, C-H...pi and pi-pi interactions.
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http://dx.doi.org/10.1107/s0108270103019656 | DOI Listing |
Acta Crystallogr E Crystallogr Commun
January 2025
Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama 223-8522, Japan.
The title compounds, CHO ( and ), are tetra-cyclic benzoates composed of a taxane ring with a fused dioxolane ring as the core skeleton. In compound , the five-membered dioxolane ring is essentially planar while the two cyclo-hexane rings and the cyclo-octane ring adopt chair and chair-chair forms, respectively, and there are three intra-molecular H⋯H short contacts. The corresponding ring conformations in are similar; however, one intra-molecular C-H⋯O inter-action and two H⋯H short contacts are observed, and the benzoyl and meth-oxy-methyl groups show orientational disorder.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
January 2025
Department of Biotechnology SRM Institute of Science and Technology, Kattankulathur Campus Chengalpattu Tamil Nadu - 603203 India.
In the crystal structure of the title chalcone derivative, CHNO, the mol-ecule adopts an s- conformation with respect to the C=O and C=C bonds. The tri-phenyl-amine moiety has a propeller-type shape, with dihedral angles between the mean planes of pairs of phenyl rings of 72.1 (6), 69.
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October 2024
Department of Chemistry, Kuwait University, PO Box 5969, Safat 13060, Kuwait.
The crystal structure of a glycosyl-ated porphyrin () system, CHNO, where two iso-propyl-idene protected galactose moieties are attached to the position of a substituted tetra-aryl porphyrin is reported. This structure reveals that the parent porphyrin is planar, with the galactose moieties positioned above and below the porphyrin macrocycle. This orientation likely prevents porphyrin-porphyrin H-type aggregation, potentially enhancing its efficiency as a photosensitizer in photodynamic therapy.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
October 2024
Department of PG Studies and Research in Physics Albert Einstein Block UCS Tumkur University, Tumkur Karnataka-572103 India.
In the title compound, CHNO, the torsion angle associated with the phenyl benzoate group is -173.7 (2)° and that for the benz-yloxy group is -174.8 (2)° establishing an -type conformation.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
October 2024
Department of Organic Chemistry University of Madras, Guindy Campus Chennai-600 025 Tamilnadu India.
Two new phenyl-sulfonyl-indole derivatives, namely, -{[3-bromo-1-(phenyl-sulfon-yl)-1-indol-2-yl]meth-yl}--(4-bromo-3-meth-oxy-phen-yl)benzene-sulfonamide, CHBrNOS, (), and ,-bis-{[3-bromo-1-(phenyl-sulfon-yl)-1-indol-2-yl]meth-yl}benzene-sulfonamide, CHBrNOS, (), reveal the impact of intra-molecular π-π inter-actions of the indole moieties as a factor not only governing the conformation of ,-bis-(1-indol-2-yl)meth-yl)amines, but also significantly influencing the crystal patterns. For , the crystal packing is dominated by C-H⋯π and π-π bonding, with a particular significance of mutual indole-indole inter-actions. In the case of , the mol-ecules adopt short intra-molecular π-π inter-actions between two nearly parallel indole ring systems [with the centroids of their pyrrole rings separated by 3.
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