Publication: The FT-IR spectroscopic investigation of transition metal(II) 4-aminopyridine tetracyanonickelate complexes
No Thumbnail Available
Date
1999-05-25
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
FT-IR spectra of M(4Apy)2Ni(CN)4 {where M=Mn, Co, Ni, Cu or Cd; 4Apy=4-aminopyridine} complexes are reported for the first time in the 400–4000 cm−1 range. The spectral features suggest that the compounds are similar in structure to the Hofmann-type complexes with infinite polymeric layers formed with Ni(CN)4−2 ions bridged by M(4Apy)2+2 cations and the ring nitrogen of the 4Apy is only involved in complex formation. However in some cases host complexes include H2O molecules as guest species which are found to be H-bonded to hydrogens of the amino group of 4Apy (N–H⋯OH2). The coordination effect on the 4Apy modes is analysed.
Description
Keywords
FT-IR, Aminopyridine, Hofmann type complexes, Tetracyanonickelate, Transition metal