Synthesis, Crystal Structure, Spectroscopic and Thermal Characterization of (Hampy)2[Ni(pydc)2(H2O)2] · 2 H2O

Abstract

A supramolecular complex, bis(2-amino-3-rnethylpyridinium) diaquabis(pyridinedicarboxylato)nickelate(II) dihydrate, (Hampy) <inf>2</inf>[Ni(pydc)<inf>2</inf>(H<inf>2</inf>O)<inf>2</inf>] • 2 H <inf>2</inf>O (ampy = 2-amino-3-methylpyridine, H<inf>2</inf>pydc = 2,5-pyridinedicarboxylic acid or isocinchomeronic acid) (1) has been prepared and characterized by elemental, spectral (IR and UV-vis.), thermal analysis, magnetic measurement and single crystal X-ray diffraction techniques. Ni(II) ion exhibits a distorted octahedral geometry coordinated by nitrogen and oxygen atoms of two pyridinedi-carboxylate ligands, oxygen atoms from the two aqua ligands. The supramolecular network is constructed by N-H • • • O strong hydrogen bonds, π - π and C-H • . • π interactions. © by Oldenbourg Wissenschaftsverlag, München.