1,4-Bis((1H-1,2,4-triazol-1-il)metil)benzen ile Çinko(II) ve Kadmiyum(II) Koordinasyon Polimerlerinin Sentezi ve Karakterizasyonu

Year 2020, , 425 - 435, 15.05.2020

Pelin Köse Yaman , Hakan Erer , Okan Zafer Yeşilel

https://doi.org/10.21205/deufmd.2020226511

Abstract

Bu çalışmada esnek
1,4-bis((1H-1,2,4-triazol-1-yl)metil)benzen (ptmb) ligandı esas alınarak 120°C de hidrotermal sentez yöntemiyle [ZnCl2(µ-ptmb)]n (1) ve [Cd(µ4-SO4)(µ-ptmb)]n (2) kapalı formülüne sahip iki yeni Çinko(II) ve
Kadmiyum(II) koordinasyon polimeri sentezlenmiştir. X-ışınları tek kristal
analiz sonuçlarına göre 1 ve 2 kompleksi sırasıyla P-1 uzay grubu ile triklinik
ve Pccn uzay grubu ile ortorombik kristal sisteminde kristallenmişlerdir. 1 de Zn(II) iyonları iki ptmb ligandı
ve iki klor ile tetrahedral geometri göstermiştir. Ptmb ligandı komşu Zn(II)
merkezleri arasında köprü rolü oynayarak 1D zig-zag polimerik zincir yapılar
oluşturmuştur. 2, de Cd(II) iyonları iki ptmb ve dört
farklı sülfat ligandı ile oktahedral geometri sergilemiştir. Dört bitişik
Cd(II) iyonları 2D tabaka oluşturmak için dört sülfat ligandı ile köprülenmiştir. 2D tabakalar köprü ptmb ligandı
sayesinde 3D kafes yapıya genişler. Ayrıca, yeni komplekslerin
termal özellikleri incelenmiştir.

Keywords

14-Bis((1H-124-triazol-1-yl)metil)benzen, Çinko (II) kompleks, Kadmiyum (II) kompleks, Koordinasyon polimeri, Hidrotermal sentez

Syntheses and Characterizations of Zinc(II) and Cadmium (II) Coordination Polymers with 1,4-bis ((1H-1,2,4- triazol-1-yl)methyl)benzene

Abstract

Two Zinc(II) and Cadmium(II) coordination polymers, namely [ZnCl2(µ-ptmb)]n (1) and [Cd(µ4-SO4)(µ-ptmb)]n (2) have been obtained with hydrothermal method at 120°C based on flexible ligand
1,4-bis((1H-1,2,4-triazol-1-yl)methyl)benzene (ptmb) in this study. The
single-crystal X-ray analyses indicate that complexes 1 and 2 crystallize in
the triclinic with P-1 space group and the orthorhombic crystal system with
space group Pccn, respectively. In 1,
Zn(II) ions display a tetrahedral geometry with two chloride and two ptmb
ligands. The ptmb ligand acts to bridge neighboring Zn(II) centres into a 1D
zig-zag polymeric chain structures. In 2,
Cd(II) ions display octahedral geometry with two ptmb and four different
sulfato ligands. Four contiguous Cd(II) ions are bridged through the agency of
four sulfato ligands to form a 2D layer. Two adjacent 2D layers further
extended into a 3D structure through the bridging ptmb ligands. Besides, the
thermal properties of synthesized new complexes
have been investigated.

Keywords

14-bis((1H-124-triazol-1-yl)methyl)benzene, Zinc (II) complex, Cadmium (II) complex, Coordination polymers, Hydrothermal Synthesis

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