Two dimensional cyano-bridged heteropolynudear complex containing Pd center dot center dot center dot pi interactions
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The heteronuclear complex, [Cd(NH3)(2)(mu-ampy)Pd(mu-CN)(2)(CN)(2)], (1) (ampy = 4-aminomethylpyridine), was synthesized and characterized by vibrational (FT-IR and Raman) spectroscopy, elemental and thermal analyses and single crystal X-ray diffraction techniques. The complex crystallizes in the triclinic system, space group P (1) over bar. The Cd(II) ion exhibits a distorted octahedral coordination by two different N-atoms from two symmetrically equivalent ampy ligands, two ammine ligands and two bridging cyano groups, whereas the Pd(II) ion has square planar coordination and is coordinated by four cyano ligands. The tetracyanopalladate(l) anion is coordinated to the adjacent two Cd(II) ions to generate a one-dimensional chain. The adjacent 1D chains are connected by the mu-ampy bridging ligands to form a 2D network. The 2D layers are further linked by Pd center dot center dot center dot pi and hydrogen bonding interactions to generate a 3D supramolecular network. The decomposition reaction takes places in the temperature range of 40-900 degrees C in the static air atmosphere.
KaynakZeitschrift Fur Kristallographie-Crystalline Materials
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