Results 11 to 20 of about 285,295 (266)

Ubiquitous Presence of Intermolecular CH…O Hydrogen Bonds in As-Synthesized Zeolite Materials

, 2021
CH…O hydrogen bonds (HBs) are identified in all crystals of series of silica zeolites hosting cationic Organic Structure Directing agents. This finding is supported by experimental C-O distances and COSi angles’ distributions, and DFT calculations on ...
Tzonka, Mineva, Shadi, Al Nahari, Karima, Ata, Bruno, Alonso   +3 more
core   +1 more source

Zinc(ii) coordination polymers with pseudopeptidic ligands [PDF]

, 2011
08.10.12 KB. Ok to add accepted version to Spiral., embargo elapsed (Sept 2012)Two new phenyl-bridged pseudopeptidic ligands have been prepared and structurally characterised.
Luis, SV, D. Krishna Kumar, Vicente Martí-Centelles, White, Andrew J. P., White, AJP, Kumar, DK, Martí-Centelles, Vicente, Vilar, Ramón, Luis, Santiago V., Andrew J. P. White, Santiago V. Luis, Ramon Vilar, Marti-Centelles, V, Vilar, R, Kumar, Krishna   +14 more
core   +1 more source

2,5-Dimethoxy-N-phenylbenzenesulfonamide

IUCrData, 2017
The molecule of the title compound, C14H15NO4S, is l-shaped, with the central C—S—N—C segment having a torsion angle of −62.9 (2)°. The dihedral angle between the benzene rings is 89.17 (9)°.
K. Shakuntala, Vijaya Kumari, N. K. Lokanath, S. Naveen, P. A. Suchetan   +4 more
doaj   +1 more source

N-(2,6-Diisopropyl­phen­yl)formamide toluene 0.33-solvate [PDF]

, 2012
The crystal packing of the title compound, C13H19NO·0.33C7H8, shows a channel at [001], which contains grossly disordered toluene solvent mol­ecules. The angle between the benzene ring and the mean plane of the formamide group is 71.1 (1)°.
Matthias Berger, Jan W. Bats, Bats, Jan W., Auner, Norbert, Norbert Auner, Berger, Matthias   +5 more
core   +1 more source

Bis(2-methyllactato)borate tetrahydrate

IUCrData, 2019
The asymmetric unit of the title compound (systematic name: 3,3,8,8-tetramethyl-1,4,6,9-tetraoxa-λ4-boraspiro[4.4]nonane-2,7-dione tetrahydrate), C8H12BO6·4H2O, consists of half a bis(2-methyllactato)borate molecule and two water molecules of solvation ...
Govindharajan Gokila, Aravazhi Amalan Thiruvalluvar, Chidambaram Ramachandra Raja   +2 more
doaj   +1 more source

Very Strong C−H···O, N−H···O, and O−H···O Hydrogen Bonds Involving a Cyclic Phosphate

, 2016
Very short C−H···O, N−H···O, and O−H···O hydrogen bonds have been generated utilizing the cyclic phosphate [CH2(6-t-Bu-4-Me-C6H2O)2]P(O)OH (1). X-ray structures of (i) 1 (unsolvated, two polymorphs), 1·EtOH, and 1·MeOH, (ii) [imidazolium]+[CH2(6-t-Bu-4 ...
Sudha Kumaraswamy (2939061), Praveen Kommana (2722120), K. C. Kumara Swamy (1401337)   +2 more
core   +2 more sources

Crystal structure of 2-benzamido-N-(2,2-diethoxyethyl)benzamide

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C20H24N2O4, both peptide bonds adopt a trans configuration with respect to the —N—H and —C=O groups. The dihedral angle between the aromatic rings is 53.58 (4)°. The molecular conformation is stabilized by an intramolecular N—H...O
Abdelaaziz Ouahrouch, Moha Taourirte, Hassan B. Lazrek, Joachim W. Engels, Michael Bolte   +4 more
doaj   +1 more source

1-[5-(3,5-Dimethoxyphenyl)-3-(2-methoxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl]ethanone

IUCrData, 2021
In the title compound, C20H22N2O4, two benzene rings bearing methoxy substituents are connected by a central acetylpyrazoline ring: the dihedral angle between the benzene rings is 83.7 (1)°.
Miri Yoo, Dongsoo Koh
doaj   +1 more source

Dimethyl 6-bromo-2-methyl-1,2-di­hydro­quinoline-2,4-dicarboxyl­ate [PDF]

, 2012
In the title compound, C14H14BrNO4, the dihydro­pyridine ring adopts a screw-boat conformation. In the crystal, pairs of N—H[cdots, three dots, centered]O hydrogen bonds link the mol­ecules into inversion R 2 2(10 ...
Bolte, Michael, Zeynep Gültekin, Hökelek, Tuncer, Michael Bolte, Gültekin, Zeynep, Tuncer Hökelek   +5 more
core   +1 more source

2-(2-Fluorophenyl)-3-hydroxy-4H-chromen-4-one

IUCrData, 2018
The asymmetric unit of the title compound, C15H9FO3, contains two independent molecules in which the fluorine-substituted benzene ring is twisted by 47.64 (3) and 56.02 (4)° relative to the 4H-chromenon skeleton.
Dongsoo Koh
doaj   +1 more source