İyodo Piridin Sübstitüe Çift Kollu Benzo-15-crown-5 Bileşiği ve Komplekslerinin Eldesi, Spektroskopik ve Termal Özelliklerinin İncelenmesi

Year 2022, , 359 - 370, 25.11.2022

Serhat Koçoğlu

https://doi.org/10.29233/sdufeffd.1115685

Abstract

Bu çalışmada 4′,5′-bis(bromometil)benzo-15-crown-5 ile 2-iyodo-3-hidroksipiridin etkileştirilerek, yeni, çift kollu taç eter ligandı (L) sentezlenmiştir. Sentezlenen ligand (L), Na+ ve K+ kompleksi elde etmek üzere sodyum pikrat ve potasyum pikrat ile tepkimeye sokulmuştur. Böylelikle, benzo-15-crown-5’in halka boşluğuna uygun olan Na+ ile 1:1 (filling) kompleksi (NaL) ve halka boşluğundan daha büyük olan K+ ile 1:2 (sandviç) kompleksi (KL2) elde edilmiştir. Ayrıca bileşik L’nin gümüş nitrat ile reaksiyonu sonucunda geçiş metal kompleksi (AgL) sentezlenmiştir. Elde edilen ligand ve komplekslerin yapısı, spektroskopik yöntemler (FTIR, HRMS, 1H-NMR, 13C-NMR) kullanılarak aydınlatılmıştır. Son olarak, sentezlenen ligand ve komplekslerin termal özellikleri TGA - DTA yöntemleri kullanılarak incelenmiş ve bileşik yapıları ile uyumlu sonuçlar elde edilmiştir.

Keywords

Taç eter bileşikleri, Spektroskopi, Termal analiz

Thanks

Bu çalışmaya verdiği desteklerden dolayı Prof. Dr. Zeliha HAYVALI’ya, FTIR ve termal analizlerdeki yardımlarından dolayı Erdal EMİR’e teşekkürlerimi sunarım.

Preparation of Double Armed Iodo Pyridine Substituted Benzo-15-crown-5 Ligand and Complexes, Investigation of Spectroscopic and Thermal Properties

Abstract

In this study, a new double-armed crown ether ligand (L) was synthesized by interacting 4',5'-bis(bromomethyl)benzo-15-crown-5 and 2-iodo-3-hydroxypyridine. Synthesized ligand (L) was reacted with sodium picrate and potassium picrate to obtain a Na+ and K+ complex. In this way, a 1:1 (filling) complex (NaL) with Na+ conforming to the cavity size of benzo-15-crown-5 and a 1:2 (sandwich) complex (KL2) with K+ larger than the cavity size were obtained. In addition, transition metal complex (AgL) was synthesized from the reaction of compound L with silver nitrate. The structure of the obtained ligands and complexes were characterized using spectroscopic methods (FTIR, HRMS, 1H-NMR, 13C-NMR). Finally, the thermal properties of the synthesized ligand and complexes were investigated using TGA - DTA methods and the results were observed compatible with the structures of the compounds.

Keywords

Crown ether compounds, Spectroscopy, Thermal analysis

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