Publications by authors named "Qing-Yan Chu"
3,7-Dihydr-oxy-3,7-diphenyl-2H,6H-pyrrolo[3,4-f]isoindole-1,5(3H,7H)-dione methanol disolvate.
Acta Crystallogr Sect E Struct Rep Online
November 2008
The asymmetric unit of the title compound, C(22)H(16)N(2)O(4)·2CH(4)O, contains one half-mol-ecule and a methanol solvent mol-ecule. The aromatic ring is oriented at a dihedral angle of 82.91 (3)° with respect to the planar indole ring systems.
View Article and Find Full Text PDF1-Phenyl-5-[4-(trifluoro-meth-yl)phen-yl]-pyrazolidin-3-one monohydrate.
Acta Crystallogr Sect E Struct Rep Online
October 2008
In the mol-ecule of the title compound, C(16)H(13)F(3)N(2)O·H(2)O, the two benzene rings are oriented at a dihedral angle of 82.55 (3)° and the pyrazole ring adopts an envelope conformation. In the crystal structure, inter-molecular C-H⋯F hydrogen bonds link the mol-ecules into chains.
View Article and Find Full Text PDF2-[Bis(3,5-dimethyl-phen-yl)-phosphor-yl]-propan-2-ol hemihydrate.
Acta Crystallogr Sect E Struct Rep Online
June 2008
In the organic mol-ecule of the title compound, C(19)H(25)O(2)P·0.5H(2)O, the benzene rings are oriented at a dihedral angle of 54.04 (3)°.
View Article and Find Full Text PDF(S)-(-)-Methyl 2-(p-tolyl-sulfon-yloxy)-propanoate.
Acta Crystallogr Sect E Struct Rep Online
April 2008
In the title compound, C(11)H(14)O(5)S, there is an intra-molecular C-H⋯O hydrogen bond, for which the C-C-S-O torsion angle involving the acceptor and donor atoms is 2.4 (4)°. The dihedral angle between the benzene ring and the methoxy-carbonyl plane is 52.
View Article and Find Full Text PDF2,3,4,6-Tetra-O-acetyl-1-O-(4-methoxy-cinnamo-yl)-β-d-glucopyran-ose.
Acta Crystallogr Sect E Struct Rep Online
February 2008
Article Synopsis
- The compound C(24)H(28)O(12) has a structure where its molecules are connected by inter-molecular C-H⋯O hydrogen bonds.
- The bond lengths and angles within the compound are considered to be normal, indicating typical molecular geometry.
- This information suggests a stable and well-defined molecular arrangement within the compound.
5-(3-Fluoro-phen-yl)-1-phenyl-pyrazolidin-3-one.
Acta Crystallogr Sect E Struct Rep Online
September 2008
Article Synopsis
- The compound C(15)H(13)FN(2)O features phenyl and fluorophenyl rings at a dihedral angle of 77.92° and has a pyrazolidine ring in an envelope conformation.
- An intra-molecular C-H⋯N hydrogen bond creates a five-membered ring, while inter-molecular N-H⋯O and C-H⋯O hydrogen bonds connect adjacent molecules in the crystal.
- Additionally, there are C-H⋯π contacts involving aromatic hydrogen atoms and π-π interactions between phenyl rings, with a centroid-centroid distance of 3.926 Å.