Two dimensional cyano-bridged hetero-metallic coordination polymers containing metal⋅⋅⋅π interactions.
Three cyano bridged hetero-metallic complexes of general formula, [Cu(NH3)2(μ-ampy)M(μ-CN)2(CN)2]n [ampy=4-aminomethylpyridine, M=Ni(II) (1), Pd(II) (2) and Pt(II) (3)] have been synthesized and characterized by vibrational (FT-IR and Raman) spectroscopy, single crystal X-ray diffraction, thermal analyses and elemental analyses. The complexes crystallize in triclinic system with space group P-1. In all complexes, M(II) ions are coordinated by four cyano ligands, and four N atoms in the equatorial plane around the Cu atom form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the cyanide N atoms in the axial positions. In one-dimensional structures of all the complexes, [Cu(ampy)](2+) cations and [M(CN)4](2-) anions are linked via bridging cyano ligands. The adjacent one-dimensional structures form a 2D network to connect by the μ-ampy bridging ligands. The 2D layers are further linked by metal⋯π and hydrogen bonding interactions to generate a three dimensional network.
Eskişehir Osmangazi University, The Institute of Science, Department of Physics, TR-26480 Eskişehir, Turkey.
Dursun
D
Karaağaç
Eskişehir Osmangazi University, Faculty of Arts and Sciences, Department of Physics, TR-26480 Eskişehir, Turkey. Electronic address: gkurkcuo@ogu.edu.tr.
Güneş Süheyla
GS
Kürkçüoğlu
Eskişehir Osmangazi University, Faculty of Arts and Sciences, Department of Chemistry, TR-26480 Eskişehir, Turkey.
Okan Zafer
OZ
Yeşilel
Hacettepe University, Faculty of Engineering, Department of Physics, TR-06800 Beytepe Ankara, Turkey.
Tuncer
T
Hökelek
D056831:Coordination Complexes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D003486:Cyanides / Q000737:chemistry*; D004055:Differential Thermal Analysis; D004583:Electrons; D006860:Hydrogen Bonding; D008670:Metals / Q000737:chemistry*; D008968:Molecular Conformation; D011108:Polymers / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013818:Thermogravimetry; D014732:Vibration
D056831:Coordination Complexes; D003486:Cyanides; D008670:Metals; D011108:Polymers
4-Aminomethylpyridine complexes; Cyano complexes; Heteronuclear complexes; Metal⋅⋅⋅π interactions; Vibrational analyses