Synthesis, crystal structure, vibrational spectra and thermal properties of the cyano-bridged hetero-nuclear polymeric complex [Cd(pea)2Ni(μ-CN)4]n

A novel cyano-bridged heteronuclear complex exhibiting C–H···Ni close interaction: [Cd(C4H7N)2Ni(μ-CN)4]n

“…The upward shift of 14 cm À1 on going from CN À to NiðCNÞ 2À 4 was explained as the mechanical coupling of the Ni-C(CN) stretching mode with the m(CN) [25]. Such frequency shifts have been observed for the other cyano-bridged complexes [2,[13][14][15][16][17]26,27] and are attributed to the mechanical coupling of the internal modes of [Ni(CN) 4 ] 2À with the M-NC vibrations. It follows that the N-termini of the [Ni(CN) 4 ] 2À group are bound to a Cd atom in the complex investigated.…”

Synergistic photomagnetic effects in coordination polymer heterostructure particles of Hofmann-like Fe(4-phenylpyridine)2[Ni(CN)4]·0.5H2O and K0.4Ni[Cr(CN)6]0.8·nH2O

“…Bands characteristic of bridging ν(CN) in the two-dimensional Fe-NuC-Ni network are observed for compound 1 at 2158 cm −1 and 2153 cm −1 , consistent with many reported examples for this family of compounds. 39,40,42 Additionally, the presence of the phenylpyridine ligand is evident in the lower-energy region of the spectrum. For the heterostructure, 2, additional ν(CN) modes confirm NiCr-PBA is in the sample, and a broad O-H signal from H 2 O intrinsic to the PBA network also appears.…”