Sübstitüe salisiliden Schiff bazı metal komplekslerinin sentezi ve karakterizasyonu

Yıl 2024, Cilt: 14 Sayı: 4, 1149 - 1160, 15.12.2024

Ahmet Oral Sarıoğlu , Hatice Gamze Soğukömeroğulları

https://doi.org/10.17714/gumusfenbil.1492674

Öz

2-hidroksi-5-nitrobenzaldehit ve 4-floroanilin'in kondenzasyon reaksiyonundan 2-(((4-florofenil)imino)metil)-4-nitrofenol Schiff bazı sentezlenmiştir. Schiff bazı ligandının sırasıyla Cu2+, Co2+, Ni2+ ve Fe2+ asetat tuzlarıyla reaksiyonundan yeni Cu2+, Co2+, Ni2+ ve Fe2+ metal kompleksleri hazırlanmıştır. 2-(((4-florofenil)imino)metil)-4-nitrofenol ligandı ve metal tuzları ile hazırlanan kompleksler, (2:1) ligand:metal sitokiyometrik oranına sahiptir. Tüm bileşiklerin yapısal olarak karakterizasyonu FT-IR, 1H- ve 13C-NMR, molar iletkenlik, elektronik absorpsiyon spektrum, manyetik duyarlılık ve elementel analiz yöntemleri kullanılarak incelenmiştir. Kompleksleşme azometin grubuna ait azot (N) donör atomu ve fenolik OH grubuna ait oksijen (O) donör atomu üzerinden koordine olarak gerçekleşmektedir. [CuL2] kompleksi için kare düzlem yapı, [CoL2], [FeL2] ve [NiL2].H2O kompleksleri için ise tetrahedral yapı önerilmiştir. Molar iletkenlik değerleri incelendiğinde (2.37-3.42 µS/cm) yapıların iletkenlik özelliğinin olmadığı görülmüştür.

Anahtar Kelimeler

Karakterizasyon, Kondenzasyon, Metal kompleks, Schiff bazı

Synthesis and characterization of Schiff base metal complexes from substituted salicylidene

Öz

2-(((4-fluorophenyl)imino)methyl)-4-nitrophenol Schiff base was synthesized from the condensation reaction of 2-hydroxy-5-nitrobenzaldehyde and 4-fluoroaniline. The new Cu2+, Co2+, Ni2+, and Fe2+ metal complexes were prepared by reacting the Schiff base ligand with Cu2+, Co2+, Ni2+, and Fe2+ acetate salts, respectively. Complexes prepared with 2-(((4-fluorophenyl)imino)methyl)-4-nitrophenol ligand and metal salts have a ligand:metal stoichiometric ratio of (2:1).The compounds were structurally characterized using FT-IR, 13C- and 1H-NMR, molar conductivity, electronic absorption spectra, magnetic susceptibility and elemental analysis techniques. Both the nitrogen (N) donor atom of the azomethine group and the oxygen (O) donor atom of the phenolic OH group are responsible for coordinating the complexation process. A square plane structure has been proposed for [CuL2], and a tetrahedral structure has been proposed for [CoL2], [FeL2], and [NiL2].H2O complexes. When the molar conductivity values were examined (2.37-3.42 µS/cm), it was seen that the structures had no conductive properties.

Anahtar Kelimeler

Characterization, Condensation, Metal complex, Schiff base

Kaynakça

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