One-dimensional coordination polymers with 4-(2-aminoethyl)pyridine: Synthesis, crystal structures and spectroscopic properties

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• 作者：Dursun Karaağaç ; ^a ; Gü ; neş Sü ; heyla Kü ; rkç ; ü ; oğlu^b ; ^{gkurkcuo@ogu.edu.tr} ; Mustafa Şenyel^c ; Onur Şahin^d ; Tuncer Hö ; kelek^e
• 关键词：Cyanide complex ; 1D complex ; 4-(2-Aminoethyl)pyridine complex ; Crystal structure ; M⋯π interaction
• 刊名：Polyhedron
• 出版年：2017
• 出版时间：17 February 2017
• 年：2017
• 卷：123
• 期：Complete
• 页码：56-61
• 全文大小：886 K
• 卷排序：123

文摘

Two new one-dimensional polymeric metal complexes, namely [Zn(NH3)(μ-4aepy)Ni(μ-CN)(CN)3]n (1) and [Cu(H2O)(μ-4aepy)Pd(μ-CN)(CN)3]n (2) [4aepy = 4-(2-aminoethyl)pyridine], were synthesized and characterized by vibrational (FT-IR and Raman) spectroscopy, single crystal X-ray diffraction, thermal and elemental analyses techniques. The complexes crystallize in the monoclinic system, P21/n space group. The asymmetric units of 1 and 2 contain two M(II) ions [M = Zn(II) and Ni(II) in 1 and Cu(II) and Pd(II) in 2], four cyanide ligands, one 4aepy ligand and one coordinated ligand (ammine in 1 and aqua in 2) in a distorted tetragonal coordination geometry. The crystal structures of the complexes revealed that three cyanide groups are terminal whereas one different cyanide group behaves as bridging ligand. The most important features of the complexes are the presence of obvious M⋯π [M(II) = Ni(II) or Pd(II)] interactions. The spectral and thermal analysis results also support the crystal structures of the complexes.