CRYSTAL STRUCTURE OF BIS-ETHYLENEDIAMINE TRITHIOCYANATE OF COPPER（Ⅱ） AND SILVER（Ⅰ） Cu（en）₂Ag（SCN）₃

【摘要】 <正> Cu（en）₂Ag（SCN）₃ crystallizes in space group P2₁2₁2₁ with its cell parameters, a=7.126（2）, b=12.587（5）, c=17.585（5）. There are four formula units per unit cell(ρ_obs.=1.90g/cm³, ρ_{calc.=1.96g/cm³}. Diffraction data are collected on a CAD4 four-circle diffractometer using Mo-Ka radiation. The structure is determiued by heavy atom method, then refined by leastsquare method to a final R=0.036. It is shown that in the crystal the coordination of Cu atoms is square pyramidal with four N atoms of en groups in the square plane and oue Natom of thiocyanate group in the apical position. The Ag atom is coordinated tetrahedrally by four S atoms of thiocyanate groups, one of which links up two AgS₄ together, thus forming the infinite AgS₄ tetrahedron chains along a axis.更多还原

【Abstract】 Cu（en）₂Ag（SCN）₃ crystallizes in space group P2₁2₁2₁ with its cell parameters, a=7.126（2）, b=12.587（5）, c=17.585（5）. There are four formula units per unit cell(ρ_obs.=1.90g/cm³, ρ_{calc.=1.96g/cm³}. Diffraction data are collected on a CAD4 four-circle diffractometer using Mo-Ka radiation. The structure is determiued by heavy atom method, then refined by leastsquare method to a final R=0.036. It is shown that in the crystal the coordination of Cu atoms is square pyramidal with four N atoms of en groups in the square plane and oue Natom of thiocyanate group in the apical position. The Ag atom is coordinated tetrahedrally by four S atoms of thiocyanate groups, one of which links up two AgS₄ together, thus forming the infinite AgS₄ tetrahedron chains along a axis.更多还原