Synthesis, Spectral, Thermal and Structural Characterization of Mixed ligand Copper(II) Complex Containing [N-(2-Hydroxyethyl)-Ethylenediamine] with Terephthalate

Year 2020, Volume: 10 Issue: 2, 985 - 997, 01.06.2020

Tuğba Aycan , Hümeyra Paşaoğlu

https://doi.org/10.21597/jist.649334

Abstract

The complex [Cu(hydet-en)2].(tpht) synthesized is characterized by single crystal X-ray determination, FT-IR spectroscopy, UV-Vis spectroscopy, thermogravimetric analysis and elemental analysis (tpht=dianion of terephthalic acid, hydet-en=N-(2- hydroxyethyl)ethylenediamine). While each hydet-en ligand coordinates to copper metal as bidentate, the tpht2-anion is freely available in the unit cell. Copper center has a square plane geometry. In the square geometry, the equatorial plane of the complex is composed of primary and secondary amine groups of hydet-en ligands. Monomers are bonded with O-H∙∙∙O and N-H∙∙∙O hydrogen bonds to form a supramolecular structure. FT-IR investigation of the complex was performed in the middle IR region. The vibrations of the complex were focused mainly considering the characteristic vibrations of terephthalic acid and N-(2- hydroxyethyl)ethylenediamine ligands. Thermal behaviour of the complex was followed using TG, DTA and DTG techniques.

Keywords

Single Crystal XRD , FT-IR spectroscopy , Thermogravimetric Analysis , Terephthalic Acid , Electronic Transitions

Project Number

PYO.FEN.1904.10.07

Tereftalat ile [N-(2-Hidroksietil)-Etilendiamin] İçeren Karışık ligantlı Bakır(II) Kompleksinin Sentezi, Spektral, Termal ve Yapısal Karakterizasyonu

Abstract

[Cu(Hydet-en)2].(Tpht) (Tpht=Tereftalik asit dianyonu, Hydet-en=N-(2-hidroksietil)etilendiamin) kompleksi sentezlenmiştir. Kompleks tek kristal X-ışını tayini, FT-IR spektroskopisi, UV-Vis spektroskopisi, termogravimetrik analiz ve elementel analiz ile karakterize edilir. Her bir hydet-en ligandı bakır metaline iki dişli olarak koordine olurken, tpht2- anyonu ise birim hücrede serbest olarak bulunmaktadır. Bakır merkezi düzgün bir kare düzlem geometriye sahiptir. Kare düzlem geometriye sahip kompleksin ekvatoral düzlemini hydet-en ligantlarının birincil ve ikincil amin grupları oluşturmaktadır. Monomerler O-H∙∙∙O ve N-H∙∙∙O hidrojen bağlarıyla bağlanarak supramoleküler yapıyı oluşturur. Kompleksin FT-IR araştırması, orta IR bölgesi içinde gerçekleştirildi. Esas olarak tereftalik asit ve N-(2-hidroksietil)etilendiamin) ligantlarının karakteristik titreşimleri göz önünde bulundurarak kompleksin titreşimlerine odaklanıldı. TG, DTA ve DTG teknikleri kullanılarak kompleksin termal davranışları izlenmiştir.

Keywords

Tek Kristal XRD , FT-IR Spektroskopisi , Termogravimetrik Analiz , Tereftalik Asit , Elektronik Geçişler

Supporting Institution

Ondokuz Mayıs Üniversitesi

Project Number

PYO.FEN.1904.10.07

Thanks

Kristalografik dataların toplanmasında emeği geçen Öğr. Gör. Hakan BÜLBÜL'e teşekkür ederim.

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