1-Vinilimidazol Ligantı İçeren Kadmiyum(II) Klorür Kompleksi: Yapısal, Spektroskopik ve Termal Özellikler

Bu çalışmada 1-vinilimidazol (vim) ve CdCl2 kullanılarak; diklorotetrakis(1-vinilimidazol)kadmiyum(II), [CdCl2(vim)4] kompleksi sentezlendi. Kompleksin yapısı FT-IR spektroskopisi, termal analiz (TG, DTG, DTA) ve X-ışınları tek kristal çalışmaları ile karakterize edildi. Kompleksin IR spektrumunda vim ligandna ait karakteristik pikler (C−H gerilme, C=C ve C=N titreşim bandları) gözlendi. Kompleksin X-ışınları kristallografik verileri komplekste vim ligantlarının heterosiklik halka azotu üzerinden metal atomuna koordine olduğunu ortaya koymuştur. Cd(II) merkez atomunun koordinasyon geometrisi uzamış oktahedraldir. Kompleks P21/n uzay grubunda kristallenmiş ve mononükleer birimler, C-H⋯Cl hidrojen bağları ile birbirlerine zayıf şekilde bağlanmıştır. Termal analiz verilerinden kompleksin dört basamakta bozunduğu ve toplam kütle kaybının % 99 olduğu belirlenmiştir

Anahtar Kelimeler:

1-Vinilimidazol, Kadmiyum(II) Kompleksi, Kristal Yapı, Termal Analiz

Cadmium(II) Chloride Complex Containing 1-Vinylimidazole Ligand: Structural, Spectroscopic and Thermal Properties

In this work dichlorotetrakis(1-vinylimidazole)cadmium(II), [CdCl2(vim)4] complex was synthesized using 1-vinylimidazole (vim) ligand and CdCl2. The structure of the complex was characterized by FT-IR spectroscopy, thermal analysis (TG, DTG, DTA) and X-ray single crystal studies. In the FT-IR spectrum of the complex, the characteristic peaks (C−H stretch, C=C and C=N vibration bands) of vim were observed. X-ray crystallographic data of the titled complex revealed that vim ligand coordinated to the metal atom via the heterocyclic ring nitrogen atom. The coordination geometry of the Cd(II) central atom is elongated octahedral. Compound crystallized in P21/n space group, and the mononuclear units were weakly linked to each other by C-H⋯Cl hydrogen bonds. It was determined by thermal analysis data that the complex degraded in four steps and total mass loss was 99%.

Keywords:

1-Viniylimidazole, Cadmium(II) Complex, Crystal Structure, Thermal Analysis,

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