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

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.

Anahtar Kelimeler:

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

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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[1] H. Huang, W. Gao, F. Liu, X.M. Zhang, J.P. Liu, Four 3D Mn(II) coordination polymers with diverse carboxylate-bridged magnetic chains: Syntheses, crystal structures, magnetic properties, Inorganica Chim. Acta. 484 (2019) 414–423. doi:10.1016/j.ica.2018.09.060.
[2] X.L. Wang, D. Zhao, A.X. Tian, Two Novel 3D Wells-Dawson Based Coordination Polymers with Unusual Topological Structure Extended by 1,4-Bis(1,2,4-triazol-1-yl)butane, J. Clust. Sci. 24 (2013) 259–271. doi:10.1007/s10876-012-0548-x.
[3] E. Coronado, M. Giménez-Marqués, C.J. Gómez-García, G.M. Espallargas, Dynamic magnetic materials based on the cationic coordination polymer [Cu(btix)2]n2n+ [btix = 1,4-bis(triazol-1- ylmethyl)benzene]: Tuning the structural and magnetic properties through anion exchange, Inorg. Chem. 51 (2012) 12938–12947. doi:10.1021/ic302066e.
[4] S.Y. Zhang, Z.J. Zhang, W. Shi, B. Zhao, P. Cheng, D.Z. Liao, S.P. Yan, Structural evolution and magnetic properties of CoIIcoordination polymers varied from 1D to 3D constructed by 1,4-bis(1,2,4-triazol- 1-ylmethyl)benzene, Dalt. Trans. 40 (2011) 7993–8002. doi:10.1039/c1dt10282f.
[5] S. Kitagawa, R. Kitaura, S. Noro, Functional Porous Coordination Polymers, Angew. Chemie Int. Ed. 43 (2004) 2334–2375. doi:10.1002/anie.200300610.
[6] L. Dobrzańska, D.J. Kleinhans, L.J. Barbour, Influence of the metal-to-ligand ratio on the formation of metal organic complexes, New J. Chem. 32 (2008) 813. doi:10.1039/b800720a.
[7] X. Meng, Y. Song, H. Hou, H. Han, B. Xiao, Y. Fan, Y. Zhu, Hydrothermal syntheses, crystal structures, and characteristics of a series of Cd-btx coordination polymers (btx = 1,4-bis(triazol-1-ylmethyl)benzene), Inorg. Chem. 43 (2004) 3528–3536. doi:10.1021/ic0354670.
[8] B. Ding, H.A. Zou, Poly[bis[??-1,4-bis-(1,2,4-triazol1ylmeth-yl)benzene-??2 N4:N4???]dichloridomanganese(II)], Acta Crystallogr. Sect. E Struct. Reports Online. 66 (2010). doi:10.1107/S1600536810026322.
[9] X.J. Xu, Сrystal Structure and Magnetic Property of a New Two-Dimensional Coordination Polymer Constructed By 1,4-Bis(1,2,4-Triazol-1-Ylmethyl)-Benzene and 4,4′-Sulfonyldibenzoic Acid, J. Struct. Chem. 56 (2015) 1008–1012. doi:10.1134/S0022476615050285.
[10] G.M. Sheldrick, A short history of SHELX, Acta Crystallogr. Sect. A Found. Crystallogr. 64 (2007) 112–122. doi:10.1107/S0108767307043930.
[11] G.M. Sheldrick, SHELXT – Integrated space-group and crystal-structure determination, Acta Crystallogr. Sect. A Found. Adv. 71 (2015) 3–8. doi:10.1107/S2053273314026370.
[12] O. V. Dolomanov, L.J. Bourhis, R.J. Gildea, J.A.K. Howard, H. Puschmann, OLEX2: A complete structure solution, refinement and analysis program, J. Appl. Crystallogr. 42 (2009) 339–341. doi:10.1107/S0021889808042726.
[13] L. Yang, D.R. Powell, R.P. Houser, Structural variation in copper(I) complexes with pyridylmethylamide ligands: Structural analysis with a new four-coordinate geometry index, τ[14] E. Coronado, M. Giménez-Marqués, G. Mínguez Espallargas, Combination of magnetic susceptibility and electron paramagnetic resonance to monitor the 1D to 2D solid state transformation in flexible metal-organic frameworks of Co(II) and Zn(II) with 1,4-bis(triazol-1-ylmethyl)benzene, Inorg. Chem. 51 (2012) 4403–4410. doi:10.1021/ic300276q.