j. inst. sci. and tech. Journal of the Institute of Science and Technology 2536-4618 Igdir University 10.21597/jist.1102515 Chemical Engineering Kimya Mühendisliği Synthesis and Characterization of Schiff Bases and Cu(II) and Ni(II) Complexes of Polyhedral Oligomeric Silsesquioxane (POSS) Compounds Polihedral Oligomerik Silseskioksan (POSS) Bileşiklerinin Schiff Bazları ve Cu(II) ve Ni(II) Komplekslerinin Sentezi ve Karakterizasyonu https://orcid.org/0000-0003-2346-955X Atik Bestami İSKENDERUN BİLİM VE SANAT MERKEZİ https://orcid.org/0000-0003-1559-7279 Demetgül Cahit HATAY MUSTAFA KEMAL ÜNİVERSİTESİ, FEN-EDEBİYAT FAKÜLTESİ, KİMYA BÖLÜMÜ 09 01 2022 12 3 1665 1676 04 13 2022 04 26 2022 Copyright © 2011, Journal of the Institute of Science and Technology 2011 Journal of the Institute of Science and Technology

In this study, two different polyhedral oligomeric silsesquioxane (POSS) weresynthesized using 3-aminopropyltriethoxysilane (APTES) and N-(2-aminoethyl)-3-aminopropyltrimethoxysilane (AEPTMS). POSS Schiff bases were synthesized as a result of the condensation reaction of POSS compounds with salicylaldehyde and 5-bromosalicylaldehyde. Thestructures of POSS and its ligand derivatives were by spectroscopic (Elemental analysis (C, H, N), 1HNMR, 29Si-NMR, FT-IR) methods. Cu(II) and Ni(II) metal complexes of Schiff Bases were also synthesized. The structures of the isolated POSS Schiff base metal complexes were tried to be clarified with FT-IR, Magnetic susceptibility balance and ICP-OES. The results showed that metal ions bind to Schiff bases via phenolic oxygen and azomethine nitrogen.

Bu çalışmada, 3-aminopropiltrietoksisilan (APTES) ve N-(2-aminoetil)-3-aminopropiltrimetoksisilan (AEPTMS) kullanılarak iki farklı polihedral oligomerik silseskioksan (POSS) sentezlenmiştir. Elde edilen bu POSS bileşikleri, salisilaldehit ve 5-bromosalisilaldehit ile kondenzasyon tepkimesi sonucu POSS Schiff bazları sentezlenmiştir. POSS ve ligand özelliğindeki türevlerinin yapıları spektroskopik (Elementel analiz (C, H, N), 1H-NMR, 29Si NMR, FT-IR) yöntemlerle aydınlatılmıştır. Schiff Bazlarının Cu(II) ve Ni(II) metal kompleksleri sentezlenmiştir. İzole edilen POSS Schiff bazı metal komplekslerinin yapıları FT-IR, Magnetik duyarlılık terazisi ve ICP-OES ile aydınlatılmaya çalışılmıştır. Sonuçlar, metal iyonlarının Schiff bazlarına fenolik oksijen ve azometin azotu üzerinden bağlandığını göstermiştir.

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