Abstract
The heteronuclear coordination polymer [Cd(SCN) 2Ni(en)(NCS) 2(EtOH)] 2 1 (en = ethylenediamine) was obtained by reaction of Cd(NO 3) 2·4H 2O, KSCN, Ni(NO 3) 2·6H 2O and en in a mole ration of 1:3:1:0.1 in ethanol solution. The complex is characterized by IR spectroscopy, electronic spectroscopy and single-crystal X-ray diffraction analysis. Crystal structure analyses show that the title complex belongs to the triclinic space group P 1 ¯ with a = 8.922(3), b = 9.860(3), c = 10.333(5) Å, α = 113.116(6)°, β = 106.550(6)°, γ = 101.622(4)°, V = 749.0(5) Å 3. Cd(II) and Ni(II) centers are linked by di- μ-1,3-thiocyanate bridges to form a 2D network containing three types of 16-membered [Cd 2Ni 2( μ-1,3-SCN) 4] macrocycles. Each Cd(II) center links six Ni(II) centers by six μ-1,3-SCN − bridges and each Ni(II) center links three Cd(II) centers by three μ-1,3-SCN − bridges. The luminescent properties of 1 in the solid state were investigated.
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