Yazar "Kurkcuoglu, Guenes Suheyla" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • [ X ]
    Öğe
    Heteronuclear coordination polymers with imidazole ligand: Synthesis, characterization and alcohol oxidation activities
    (Pergamon-Elsevier Science Ltd, 2024) Kurkcuoglu, Guenes Suheyla; Yesilel, Okan Zafer; Mwanza, Telvin; Kekec, Seray; Unver, Hakan; Sahin, Onur
    Two new heteronuclear Cd(II)/Pd(II) coordination polymers, [Cd2(mu -im)2(Him)4Pd(mu -CN)4]n (1) and [Cd (Him)2Pd(mu -CN)4]n (2) (Him: imidazole), have been synthesized under different conditions and characterized using elemental analysis, thermal analysis, FT-IR and Raman spectroscopy, single-crystal and powder X-ray diffraction techniques. In 1, the Cd(II) ions are bridged by imidazolate ligands to generate 1D chain structure. Neighbouring 1D chains were linked by [Pd(CN)4]2- ions to form 3D framework. In 2, the metal ions are bridged by cyanide ligands to generate 2D [Cd2Pd2(mu -CN)4]n network. Catalytic peroxidative oxidation activity of 1 and 2 was examined on the oxidation of benzyl alcohol using tertiary-butyl hydroperoxide (t-BuOOH) as the oxygen source. The compound 1 exhibited over 90 % product conversion at 80 degrees C in 24-hour reaction time. In addition, the catalyst exhibited high selectivity towards benzaldehyde and no over-oxidation product (benzoic acid) was detected.
  • [ X ]
    Öğe
    Synthesis, characterization and crystal structures of heteronuclear coordination polymers with 4-methylpyridine
    (Springer/Plenum Publishers, 2024) Kekec, Seray; Kurkcuoglu, Guenes Suheyla; Sahin, Onur; Yesilel, Okan Zafer
    In this study, four new heteronuclear hexacyanoferrate(III) and hexacyanocobaltate(III) complexes, namely, [Cu2(4mpy)2Cu(4mpy)2(EtOH)2Co2(mu-CN)8(CN)4]n (1), [Zn2(4mpy)2Zn(4mpy)2Co2(mu-CN)10(CN)2]n (2), [Cd2(H2O)8Cd(4mpy)2Co2(mu-CN)8(CN)4]n (3) and [Cd3(4mpy)12Fe2(mu-CN)6(CN)6]n (4), were synthesized using 4-methylpyridine (4mpy) ligand. All complexes were investigated using single-crystal X-ray diffraction (SC-XRD), vibration (FT-IR and Raman) spectra and elemental and thermal analysis techniques. In addition, powder X-ray diffraction (PXRD) patterns were performed to verify the phase purity of the complexes. Crystallographic analyses reveal that complexes 1, 2 and 4 exhibit 2D structure while complex 3 exhibits 1D structure. Also, the 3D supramolecular structures of the complexes 1-4 formed through intermolecular C-H center dot center dot center dot N, O-H center dot center dot center dot N or O-H center dot center dot center dot O hydrogen bonding.