Yazar "Karaagac, Dursun" seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • [ X ]
    Öğe
    One dimensional coordination polymers: Synthesis, crystal structures and spectroscopic properties
    (Elsevier Science Bv, 2016) Karaagac, Dursun; Kurkcuoglu, Gunes Suheyla; Senyel, Mustafa; Sahin, Onur
    Two new one dimensional (1D) cyanide complexes, namely [M(4-aepy)(2)(H2O)(2)][Pt(CN)(4)], (4-aepy = 4-(2-aminoethyl)pyridine M = Cu(II) (1) or Zn(II) (2)), have been synthesized and characterized by vibrational (FT-IR and Raman) spectroscopy, single crystal X-ray diffraction, thermal and elemental analyses techniques. The crystallographic analyses reveal that 1 and 2 are isomorphous and isostructural, and crystallize in the monoclinic system and C2 space group. The Pt(II) ions are coordinated by four cyanide-carbon atoms in the square-planar geometry and the [Pt(CN)4]2 ions act as a counter ion. The M(II) ions display an N4O2 coordination sphere with a distorted octahedral geometry, the nitrogen donors belonging to four molecules of the organic 4-aepy that act as unidentate ligands and two oxygen atoms from aqua ligands. The crystal structures of 1 and 2 are similar each other and linked via intermolecular hydrogen bonding, Pt center dot center dot center dot pi interactions to form 3D supramolecular network. Vibration assignments of all the observed bands are given and the spectral features also supported to the crystal structures of the complexes. (C) 2016 Elsevier B.V. All rights reserved.
  • [ X ]
    Öğe
    One-dimensional coordination polymers with 4-(2-aminoethyl) pyridine: Synthesis, crystal structures and spectroscopic properties
    (Pergamon-Elsevier Science Ltd, 2017) Karaagac, Dursun; Kurkcuoglu, Giunes Suheyla; Senyel, Mustafa; Sahin, Onur; Hokelek, Tuncer
    Two new one-dimensional polymeric metal complexes, namely [Zn(NH3)(mu-4aepy)Ni(mu-CN)(CN)3](n) (1) and [Cu(H2O)(mu-4aepy)Pd(mu-CN)(CN)(3)](n) (2) [4aepy = 4-(2-aminoethyl)pyridine], were synthesized and characterized by vibrational (FT-IR and Raman) spectroscopy, single crystal X-ray diffraction, thermal and elemental analyses techniques. The complexes crystallize in the monoclinic system, P2(1/)n space group. The asymmetric units of 1 and 2 contain two M(II) ions [M = Zn(II) and Ni(II) in 1 and Cu(II) and Pd(II) in 2], four cyanide ligands, one 4aepy ligand and one coordinated ligand (ammine in 1 and aqua in 2) in a distorted tetragonal coordination geometry. The crystal structures of the complexes revealed that three cyanide groups are terminal whereas one different cyanide group behaves as bridging ligand. The most important features of the complexes are the presence of obvious M...pi [M(II) = Ni(II) or Pd(II)] interactions. The spectral and thermal analysis results also support the crystal structures of the complexes. (C) 2016 Elsevier Ltd. All rights reserved.
  • [ X ]
    Öğe
    Synthesis, spectroscopic, thermal and structural properties of 4-(2-aminoethyl)pyridinium tetracyanometallate(II) complexes
    (Elsevier, 2017) Karaagac, Dursun; Kurkcuoglu, Gunes Suheyla; Senyel, Mustafa; Sahin, Onur
    In this study, three new complexes (4aepyH)(2)[Ni(CN)(4)] (1), (4aepyH)(2)[Pd(CN)(4)] (2) and (4aepyH)(2)[Pt(CN)(4)] (3) [4aepy = 4-(2-aminoethyl)pyridine] have been synthesized and characterized by elemental, thermal, vibrational (FT-IR and Raman) and single-crystal X-ray diffraction techniques. The crystallographic analyses reveal that the complexes crystallize in the monoclinic system, space group C2/c. The asymmetric units of the complexes contain one M(II) ion, two cyanide ligands and one non coordinated the 4aepy ligand. Each M(II) ion is four coordinated with four cyanide-carbon atoms in a square planar geometry and the [M(CN)(4)](2-) anions act as a counter ion. The 4aepyH cations in the complexes compose of the protonation of the 4aepy. The vibrational spectral data also supported to the crystal structures of the complexes. Thermal stabilities and decomposition products of the complexes were investigated in the temperature range 40-700 degrees C in the static air atmosphere. (C) 2017 Elsevier B.V. All rights reserved.