Browsing by Author "Yildirim, I"

1-ethyl-5-(4-methoxybenzoyl)-4-(4-methoxyphenyl)pyrimidine-2(1H)-thione

Ozcelik, S; Dincer, M; Yildirim, I; Akcamur, Y (Int Union Crystallography, 2004)

The title compound, C21H20N2O3S, is a derivative of pyrimidine-2-thione and consists of planar fragments. The molecules are linked by C - H ... O/C - H ... S hydrogen bonds and by pi-pi and C - H ... pi interactions.

2,3,4,6-Tetraphenyl-2H-pyrazolo[3,4-d]-pyridazin-7(6H)-one

Dincer, M; Ozdemir, N; Yildirim, I; Demir, E; Akcamur, Y; Isik, S (Blackwell Munksgaard, 2004)

The title compound, C29H20N4O, is a derivative of 2H-pyrazolo[3,4-d] pyridazine and is non-planar, although consisting of planar fragments. The structure consists of planar fragments. There are two independent molecules ...

3,5-Bis(4-methylbenzoyl)-2,6-bis(4-methylphenyl)-4H-pyran-4-one

Dincer, M; Yildirim, I; Koca, I; Ozdemir, N (Blackwell Munksgaard, 2004)

The title compound, C35H28O4, is a tetrasubstituted 4H-pyran-4-one with 2,6-bis(p-tolyl) and 3,5-bis(p-toluyl) substituents. The pyran ring is almost planar; the planes of the toluyl substituents are approximately orthogonal ...

3-Hydroxy-1,3-di-p-tolylpropenone

Dege, N; Yildirim, I; Guldeste, A; Inac, H; Koca, I; Kahveci, N; Büyükgüngör, Orhan (Blackwell Munksgaard, 2005)

The title molecule, C17H16O2, lies on a crystallographic twofold rotation axis. The dihedral angle between the planes of the two symmetry-related benzene rings is 15.56 (4)degrees. The molecular structure is stabilized by ...

4-benzoyl-1,5-diphenyl-1H-pyrazole-3-carboxylic acid methanol solvate

Yildirim, I; Ozdemir, N; Akcamur, Y; Dincer, M; Andac, O (Int Union Crystallography, 2005)

In the title compound, C23H16N2O3 . CH4O, the N - N bond distance in the pyrazole ring, which is planar within 0.008 Angstrom, is 1.3634 ( 18) Angstrom. The crystal packing is stabilized by O - H ... O, O - H ... N and C ...

4-benzoyl-N-methyl-1,5-diphenyl-1H-pyrazole-3-carboxamide

Dincer, M; Ozdemir, N; Yildirim, I; Demir, E; Isik, S (Wiley-Blackwell, 2004)

The title compound, C24H19N3O2, is a derivative of 1H-pyrazole-3-carboxylic acid. The four rings in the structure are not coplanar. The dihedral angle between the mean planes of the pyrazole ring and the carboxamide group ...

5-Carboxylato-5-hydroxy-4-(4-methoxybenzoyl)-3-(4-methoxyphenyl)-1,1-dimethyl-4,5-dihydro-1H-pyrazol-1-ium monohydrate

Demir, S; Dincer, M; Yildirim, I; Kayademir, A (Int Union Crystallography, 2005)

In the title compound, C21H22N2O6 center dot H2O, the pyrazolium ring is in an envelope conformation. In the crystal structure, intermolecular O-H center dot center dot center dot O hydrogen bonds form molecular tapes along ...