Structural, Optical, Magnetic, and Dielectric Properties in Hybrid Solid Solutions of Zn(α)Ni(1−α)(en)(3)Ag(2)I(4) (0 < α < 1) by Varying the Relative Zn/Ni Content

[Image: see text] The hybrids of M(en)(3)Ag(2)I(4) (M = Zn or Ni) are isostructural to each other and crystallize in space group P6(3)22 with quite similar lattice parameters. The hybrid solid solutions Zn(α)Ni(1−α)(en)(3)Ag(2)I(4) (0 < α < 1) have been prepared via self-assembly in the mixed N,N-dimethylformamide solution of AgNO(3), KI, and ethylenediamine, meanwhile, with certain relative amount of [Zn(en)(3)](2+) and [Ni(en)(3)](2+) ions at ambient condition. All hybrid solid solutions are isostructural to the parent hybrids M(en)(3)Ag(2)I(4) (M = Zn or Ni). The UV–vis–near IR diffuse reflection spectra in solid state, thermogravimetric analysis, variable-temperature magnetic susceptibility, and dielectrics have been investigated for Zn(α)Ni(1−α)(en)(3)Ag(2)I(4) (0 < α < 1). The intensity of bands centered at 540 and 860 nm in UV–vis–near IR spectra, arising from the d–d electron transition in Ni(2+) ion, as well as the Curie constant decreases linearly with the molar fraction of Zn (α)/Ni (1 – α), whereas the c-axis length, the C–N and C–C bond lengths in the ethylenediamine, the frequency-independent dielectric permittivity and the onset temperature of dielectric relaxation, and so forth show nonmonotonical alternation with the fraction of Zn (α)/Ni (1 – α) in the solid solution, and the origin for these differences is further discussed.