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author:("shenqi, Seema")
1.  1-(4-Bromo­phen­yl)-2-(2-chloro­phen­oxy)ethanone 
In the title compound, C14H10BrClO2, a twofold halogenated derivative of phenyl­ated phenyl­oxyethanone, the least-squares planes defined by the C atoms of the aromatic rings subtend an angle of 71.31 (17)°. In the crystal, C—H⋯O contacts connect the mol­ecules into chains along the b-axis direction.
PMCID: PMC3589050  PMID: 23476286
2.  2-(8-Bromo­imidazo[1,2-a]pyridin-2-yl)-N′-[(E)-4-diethyl­amino-2-hy­droxy­benzyl­idene]acetohydrazide dihydrate 
In the title compound, C20H22BrN5O2·2H2O, the Schiff base mol­ecule exists in an E conformation with respect to the acyclic C=N bond. An S(6) ring motif is formed via an intra­molecular O—H⋯N hydrogen bond. The dihedral angle between the imidazo[1,2-a]pyridine system and the benzene ring is 84.62 (5)°. In the crystal, N—H⋯O, O—H⋯O, O—H⋯N, C—H⋯O and C—H⋯Br hydrogen bonds link the mol­ecules into a three-dimensional network. The crystal packing is further stabilized by C—H⋯π and π–π inter­actions [centroid–centroid distance = 3.5365 (7) Å].
PMCID: PMC3297878  PMID: 22412681
3.  2-(2,4-Dichloro­phen­yl)-2-oxoethyl 4-meth­oxy­benzoate 
In the title compound, C16H12Cl2O4, the dihedral angle between the benzene rings is 70.11 (6)°. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds into a three-dimensional network. A C—H⋯π inter­action is also observed.
PMCID: PMC3239022  PMID: 22199870

Results 1-3 (3)