Synthesis of Some New Carbazole-Metal Complexes and Their Thermal, Electronic, Spectral and Catalytic Alkene Oxidation Properties

Öz

    Two new ligands [(E)-4-chloro-2-((9-ethyl-9H-carbazol-3-yl)methyleneamino)phenol, (E)-2-bromo-4-chloro-6-((9-ethyl-9H-carbazol-3-yl)methyleneamino)phenol] and their Cobalt (II), Manganese (II) and Nickel (II) complexes have been synthesized and characterized through various spectroscopic techniques (NMR, UV, IR, Mass etc.). Synthesized compounds have been examined for their catalytic activities in the oxidation reactions of styrene and cyclohexene. Manganese (II) complexes of both ligands showed the highest catalytic activity in alkene oxidations. Synthesized complex compounds proved that they could be used as catalysts in organic reactions requiring high temperatures. Electronic features of all the new compounds have also been reported for the first time with this paper.

Anahtar Kelimeler

• Catalysis
• Complex
• Schiffbase

Bazı Yeni Karbazol-Metal Komplekslerinin Sentezi ve Termal, Elektronik, Spektral ve Katalitik Alken Oksidasyon Özellikleri

Öz

İki yeni ligant [(E)-4-kloro-2-((9-etil-9H-karbazol-3-yl)metilenamino)fenol, (E)-2-bromo4-chloro-6-((9-etil-9H-karbazol-3-yl)metilenamino)fenol] ile bunların kobalt (II), mangan (II) ve nikel(II) kompleksleri sentezlenmiş ve yapıları değişik spektroskopik yöntemlerle (NMR, UV, IR, Mass etc.) karakterize edilmişlerdir. Sentezlenen bileşiklerin katalitik aktiviteleri stiren ve siklohekzenin oksidasyon reaksiyonları üzerinde incelenmiştir. Her iki ligantın Mangan (II) kompleksleri alken oksidasyonlarında en yüksek aktiviteyi göstermiştir. Sentezlenen kompleks bileşiklerin katalizör olarak yüksek sıcaklık isteyen katalitik reaksiyonlarda kullanılabilirliği termal analizlerle kanıtlanmıştır. Bu yeni bileşiklerin elektronik özellikleri de ilk kez bu çalışma ile rapor edilmektedir. 

Anahtar Kelimeler

• Kataliz
• Kompleks
• Şifbazı

Kaynakça

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