Grzegorz Dutkiewicz

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In the crystal structure of the title compound, C(21)H(18)ClFO(3)·0.5C(7)H(8), the toluene solvent mol-ecules occupy special positions on centres of symmetry, and consequently are disordered across this site. The cyclo-hexene ring has a slightly distorted sofa conformation; the two benzene rings are inclined by 72.90 (7)° and their planes make dihedral(More)
In the crystal structure of the title compound, C(21)H(18)F(2)O(3), the cyclo-hexene ring has a slightly distorted sofa conformation; the two benzene rings are inclined by 76.27 (8)° and their planes make dihedral angles of 16.65 (10) and 67.53 (7)° with the approximately planar part of the cyclo-hexenone ring [maximum deviation 0.044 (2) Å, while the sixth(More)
In both 1-(2-cyanoethyl)thymine [systematic name: 3-(5-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)propanenitrile], C(8)H(9)N(3)O(2), (I), and 1-(3-cyanopropyl)thymine [systematic name: 4-(5-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)butanenitrile], C(9)H(11)N(3)O(2), (II), the core of the supramolecular structure is formed by centrosymmetric(More)
The title compound, C(13)H(13)F(2)N(6)O(+)·C(6)H(2)N(3)O(7) (-), is the first structurally characterized salt of the cation of fluconazole [systematic name 2-(2,4-difluorophenyl)-1,3-bis(1H-1,2,4-triazol-1-yl)propan-2-ol], a synthetic anti-fungal agent. In the crystal, the components are linked by O-H⋯O hydrogen bonding between the hy-droxy group of the(More)
The experimental charge-density distribution in 2-methyl-1,3-cyclopentanedione in the crystal state was analyzed by synchrotron X-ray diffraction data collection at 0.33 Å resolution. The molecule in the crystal is in the enol form. The experimental electron density was refined using the Hansen-Coppens multipolar model and an alternative modeling, based on(More)
In the title compound, C(19)H(16)F(3)N(3), the dihedral angle between the naphthalene and quinoline ring systems is 14.58 (8)°. The hydrazone C-N-N=C-C chain is in an extended conformation and its mean plane is nearly coplanar with the quinoline plane [dihedral angle = 3.45 (9)°]. The bond angles within the phenyl ring show the almost additive influence of(More)
In the title compound, C(16)H(26)O(5)S, the oxathiol-ane ring adopts an envelope conformation, with the S atom 0.793 (3) Å out of the mean plane of the remaining four atoms. The cyclo-hexane ring of the menthol fragment adopts an almost ideal chair conformation, with all substituents in the equatorial positions. In the crystal, relatively strong, short and(More)
In the title compound, C(8)H(9)ClN(2)O(2), the two planar fragments, i.e. the chloro-phenyl and C-C(=O)-N groups, are inclined at 14.93 (17)°. In the crystal, relatively weak inter-molecular N-H⋯N, C-H⋯O and N-H⋯O hydrogen bonds connect the mol-ecules into layers. The hydro-phobic parts of mol-ecules stick outside these layers and are connected with the(More)
In both ionic components of the title salt, C(4)H(7)N(2) (+)·C(6)H(2)N(3)O(7) (-), the rings are approximately planar; the maximum deviation from the mean plane is an order of magnitude larger in the picrate ring [0.0289 (10) Å] than in the imidazolium ring [0.0028 (10) Å. The nitro groups are twisted with respect to the six-atom ring plane; the NO(2)(More)