Bir boyutlu (1D) 5-nitroisoftalat Cu(II) ve Cd(II)-koordinasyon polimerlerinin hidrotermal sentezi ve karakterizasyonu

Yıl 2018, Cilt: 22 Sayı: 3, 870 - 879, 01.06.2018

Mürsel Arıcı

https://doi.org/10.16984/saufenbilder.325582

Öz

 5-nitroisoftalik asit (5-nipH₂) ve
1-metilimidazol (1-meim) ligantları ile iki yeni 1D Cu(II) ve Cd(II)
koordinasyon polimeri, {[Cu(µ-5-nip)(1-meim)₂(H₂O)]∙2H₂O}_n
(1) ve {[Cd(µ₃-5-nip)(1-meim)(H₂O)]∙H₂O}_n
(2) hidrotermal yöntemle sentezlendi
ve yapıları elementel analiz, IR spektroskopisi ve tek kristal X-ışınları kırınım
yöntemiyle aydınlatıldı. X-ışınları analiz sonuçlarına göre 5-nitroisoftalat ligantı
her iki komplekste de köprü ligantı olarak hareket etmiş ve komplekslerin bir
boyutlu yapısı meydana gelmiştir. Her iki komplekste de 5-nip ligantının farklı
bağlanma biçimi sergilediği tespit edilmiştir. Komplekslerin 2D ve 3D
supramoleküler yapıları O−H···O hidrojen
bağları ve π···π etkileşimleri ile oluşmuştur. 2 kompleksinde, D4 su kümesi bulunmaktadır. Ayrıca, komplekslerin
termal, fotolüminesans ve optik özellikleri de detaylı şekilde çalışılmıştır.

Anahtar Kelimeler

5-nitroisoftalat ligantı, koordinasyon polimeri, hidrotermal sentez

Hydrothermal synthesis and characterization of one dimensional (1D) 5-nitroisophthalate Cu(II) and Cd(II)-coordination polymers

Öz

Two new one dimensional (1D) Cu(II) and Cd(II)-coordination
polymers, namely {[Cu(µ-5-nip)(1-meim)₂(H₂O)]∙2H₂O}_n
(1) and {[Cd(µ₃-5-nip)(1-meim)(H₂O)]∙H₂O}_n
(2), (5-nip= 5-nitroisophthalate,
1-meim= 1-methylimidazole) were synthesized by hydrothermal method with
5-nitroisophthalic acid and 1-methylimidazole. They were characterized by
elemental analysis, IR spectroscopy and single crystal X-ray diffraction. X-ray
analysis results showed that 5-nip acted as a bridging ligand in both complexes
and 1D chains of the complexes occurred. In the complexes, 5-nip ligand displayed
two different coordination modes. 2D and 3D supramolecular structures of the
complexes were generated through O−H···O hydrogen
bonding and π··· π interactions. Moreover, thermal, photoluminescence
and optic properties were studied in detail.

Anahtar Kelimeler

5-nitroisophthalate ligand, coordination polymer, hydrothermal synthesis

Kaynakça

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