An unprecedented DDQ–nickel (II) Salen complex interaction and X-ray crystal structure of nickel (II) Salen. DDH co-crystal
Abstract The charge transfer interaction between DDQ (2, 3-dichloro-5, 6-dicyano-1, 4-
benzoquinone) and [Ni (Salen)](Salen= bis (salicylaldehyde) ethylenediimine) complex was
studied in the solution and solid state. The yellow color of [Ni (Salen)] dissolved in
dichloromethane or chloroform was changed to green in the presence of the DDQ. The
green precipitates of [Ni (Salen)]+ DDQ− charge transfer complex were collected via adding
the n-hexane to the solution. Crystallization of charge transfer solid from dichloromethane/ ...