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18 üyeli N2S2O2 hetero atomlu makrosiklik oksim sentezi ve komplekslerinin incelenmesi

Synthesis of 18-membered N2S2O2 hetero atom containing macrocycle vic-dioxime and characterization of its complexes

  1. Tez No: 105488
  2. Yazar: SEMRA KESKİN
  3. Danışmanlar: YRD. DOÇ. DR. MEHMET KANDAZ
  4. Tez Türü: Yüksek Lisans
  5. Konular: Kimya, Chemistry
  6. Anahtar Kelimeler: vic-Dioksim, katekol, siyanojen-di-N-oksit, Ni11, Cou, Cu11
  7. Yıl: 2001
  8. Dil: Türkçe
  9. Üniversite: Sakarya Üniversitesi
  10. Enstitü: Fen Bilimleri Enstitüsü
  11. Ana Bilim Dalı: Kimya Ana Bilim Dalı
  12. Bilim Dalı: Belirtilmemiş.
  13. Sayfa Sayısı: 77

Özet

ÖZET

Özet (Çeviri)

SUMMARY SYNTHESIS AND COMPLEX FORMATION OF NOVEL VIC- DIOXIMES KEYWORDS: vic-Dioximes, macrocyclic compounds, cyanogen-di-N-oxide, Niu, Co11, Cun, U02(n) complexes. The transition metal complexes of macrocyclic ligands have been subject of great interest to researchers in catalysis, enzyme, functions and the other areas of the chemistry. Vicinal dioximes have eceived consideable attention as model compounds to mimic bi function such as reduction of vitamin B12. Their complexes have been the source, throguh the decades, of a never-ending series of interesting reports. The oxime groups is derived from oxy-imine, C=NOH. This group is amphiprotic with a slightly basic nitrogen and mildly acidic hydoxyl-group owing to their importance as stable MN4 core-containing coordination compounds, vie dioxime complexes have been much invertigated. incorporating of vic-dioksime moiety on the macrocycle provides can efficient binding site for transition metal ions by formation of on MN4 core with additions two hydrogen bridges. As a ligand, the oxime group is potentially amphidedante with possibilites of coordination through nitrogen sulpher and/or oxygen atoms. The best known example of a vic-dioxime is dimethylglioxime (H2DMG), which gives the well- known red nickel complexes with Ni+2 in ammoniacal solution. The detailed stuructures of a fairly large of metal vic-dioximates are known from X-ray investigations. The important features apart from N4 planar binding are the strong O H O hydrogen bondings and stacking of the planar units to each other in the crystal, in the case of Niu and Pdu in general. Our primary aim has been synthesized a new macrocycle vic-dioxime bearing higher member of macrocycles on the periphery. Oxime complexes carrying three kind donor atoms, such as N, O, S in the higher member macrocycles are rather few or almost never. Acrording to this strategy we have in report the synthesis of a new vic-dioksime coming together on the some ligand molecule. For this purpose, the synthetic work started of the known-compounds with catechol and finalized with 1,2-bis (2- iyodoetoxy) 4,5-dibromobenzene. The first orginal step is the synthesis of 1,2-bis ix

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