Yazar "Sertcelik, Mustafa" seçeneğine göre listele

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    catena-Poly[[(4-formylbenzoato-?O1)(isonicotinamide-?N1)zinc(II)]-?-4-formylbenzoato-?2O1:O1?]
    (Int Union Crystallography, 2009) Hokelek, Tuncer; Yilmaz, Filiz; Tercan, Baris; Sertcelik, Mustafa; Necefoglu, Hacali
    In the title compound, [Zn(C8H5O3)(2)(C6H6N2O)](n), the Zn-II ion is tetrahedrally coordinated by two formylbenzoate (FB) and one isonicotinamide (INA) ligands while symmetry-related FB ligands bridge adjacent ZnII ions, forming polymeric chains along the b axis. The carboxylate groups in the two FB ions are twisted away from the attached benzene ring by 9.07 (2) and 26.2 (2)degrees. The two benzene rings of the FB ions are oriented at a dihedral angle of 81.30 (5)degrees. In the crystal, adjacent polymeric chains interact via N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds, pi-pi contacts between the formylbenzoate rings [centroid-centroid distance = 3.7736 (8) angstrom] and weak C-H center dot center dot center dot pi interactions, forming a three-dimensional network.
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    Diaquabis(N,N-diethylnicotinamide-?N1)bis(4-formylbenzoato-?O)cobalt(II)
    (Int Union Crystallography, 2009) Sertcelik, Mustafa; Tercan, Baris; Sahin, Ertan; Necefoglu, Hacali; Hoekelek, Tuncer
    In the crystal structure of the title Co-II complex, [Co(C8H5O3)(2)(C10H14N2O)(2)(H2O)(2)], the metal centre is located on an inversion center and is coordinated by two 4-formylbenzoate (FOB), two diethylnicotinamide (DENA) ligands and two water molecules in a slightly distorted CoO4N2 octahedral geometry. In the crystal structure, O-H center dot center dot center dot O hydrogen bonds link the molecules into infinite chains. pi-pi contacts between the parallel pyridine rings of neighboring DENA ligands [centroid-centroid distance = 3.652 (3) angstrom] further stabilize the crystal structure.
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    Diaquabis(N,N-diethylnicotinamide-?N1)bis(4-formylbenzoato-?O)nickel(II)
    (Int Union Crystallography, 2009) Sertcelik, Mustafa; Tercan, Baris; Sahin, Ertan; Necefoglu, Hacali; Hokelek, Tuncer
    In the title centrosymmetric mononuclear Ni-II compound, [Ni(C8H5O3)(2)(C10H14N2O)(2)(H2O)(2)], the central Ni-II atom is coordinated by two O atoms from two 4-formylbenzoate (FOB) ligands, two O atoms from two water molecules and two N atoms from two diethylnicotinamide (DENA) ligands. The coordination geometry is slightly distorted octahedral, with four O atoms in the equatorial plane and two N atoms in axial positions. Intramolecular O-H center dot center dot center dot O hydrogen bonds are observed. In the crystal structure, molecules are linked into chains along the a axis by intermolecular O-H center dot center dot center dot O hydrogen bonds. The structure is further stabilized by pi-pi interactions between the pyridine rings of DENA units, with a centroid-centroid distance of 3.668 (2) angstrom.
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    Diaquabis(N,N-diethylnicotinamide-?N1)bis(4-formylbenzoato-?O1)manganese(II)
    (Int Union Crystallography, 2009) Sertcelik, Mustafa; Tercan, Baris; Sahin, Ertan; Necefoglu, Hacali; Hoekelek, Tuncer
    The title compound, [Mn(C8H5O3)(2)(C10H14N2O)(2)(H2O)(2)], contains one Mn-II atom lying on an inversion centre, two 4-formylbenzoate and two diethylnicotinamide ligands and two coordinated water molecules. All ligands are monodentate. The four O atoms around the Mn atom form a slightly distorted equatorial plane, while the distorted octahedral coordination is completed by the two N atoms in the axial positions. An intramolecular O-H center dot center dot center dot O hydrogen bond occurs in the complex. In the crystal structure, O-H center dot center dot center dot O hydrogen bonds link the molecules through an R-2(2)(16) ring motif, forming a one-dimensional chain along the a axis. The pi-pi contact between the pyridyl rings [centroid-centroid distance = 3.629 (2) angstrom] may further stabilize the structure.
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    Tetraaquabis(isonicotinamide-?N1)cobalt(II) bis(4-formylbenzoate) dihydrate
    (Int Union Crystallography, 2009) Hokelek, Tuncer; Yilmaz, Filiz; Tercan, Baris; Sertcelik, Mustafa; Necefoglu, Hacali
    The asymmetric unit of the crystal structure of the title complex, [Co(C6H6N2O)(2)(H2O)(4)](C8H5O3)(2)center dot 2H(2)O, contains one-half of the complex cation with the Co-II ion located on an inversion center, a 4-formylbenzoate (FB) counter-anion and an uncoordinated water molecule. The four O atoms in the equatorial plane around the Co-II ion form a slightly distorted square-planar arrangement with an average Co-O bond length of 2.086 angstrom; the slightly distorted octahedral coordination is completed by the two N atoms of the isonicotinamide (INA) ligands at a slightly longer distance [2.1603 (14) angstrom] in the axial positions. The dihedral angle between the carboxylate group and the attached benzene ring is 5.93 (13)degrees, while the pyridine and benzene rings are oriented at a dihedral angle of 3.09 (6)degrees. In the crystal structure, O-H center dot center dot center dot O, N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds link the molecules into a three-dimensional network. pi-pi Contacts between the benzene and pyridine rings [centroid-centroid distance = 3.758 (1) angstrom] may further stabilize the crystal structure.