One-dimensional coordination polymers with 4-(2-aminoethyl)pyridine: Synthesis, crystal structures and spectroscopic properties. (17th February 2017)

• Record Type: Journal Article
• Authors: Karaağaç, Dursun; Kürkçüoğlu, Güneş Süheyla; Şenyel, Mustafa; Şahin, Onur; Hökelek, Tuncer
• Is Part Of: Polyhedron. Volume 123(2017)
• Page Start: 56
• Page End: 61
• Publication Date: 2017-02-17
• Subjects: Cyanide complex -- 1D complex -- 4-(2-Aminoethyl)pyridine complex -- Crystal structure -- M⋯π interaction; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2016.10.046
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Two new one-dimensional polymeric metal complexes were synthesized and investigated by spectral, thermal, elemental and X-ray diffraction techniques. The asymmetric units of the complexes contain two M(II) ions [M = Zn(II) and Ni(II) in1 and Cu(II) and Pd(II) in2 ], four cyanide ligands, one 4aepy ligand and one coordinated ligand (ammine in1 and aqua in2 ) in a distorted tetragonal coordination geometry. The most important features of the complexes are the presence of obvious M⋯π (M = Ni(II) or Pd(II)) interactions. Abstract: Two new one-dimensional polymeric metal complexes, namely [Zn(NH3 )(μ-4aepy)Ni(μ-CN)(CN)3 ] n (1 ) and [Cu(H2 O)(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, P 21 / n space group. The asymmetric units of1 and2 contain two M(II) ions [M = Zn(II) and Ni(II) in1 and Cu(II) and Pd(II) in2 ], four cyanide ligands, one 4aepy ligand and one coordinated ligand (ammine in1 and aqua in2 ) 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.