【摘要】 在乙腈溶剂中,获得了La（NO）₃与穴醚（2.2）配合物的单晶,测定了晶体结构。结果表明La³⁺在穴醚空穴中呈无序状态分布,即有种3种不同位置。La（NO₃）₃·(C₁₂H₂₆O₄N₂)晶体属三斜晶系,空间群为P₁^-,晶胞参数为a=8.183（2）（?）,b=10.958（4）（?）,c=13.948（4）（?）;α=99.46（3）°,β=78.01（2）°,γ=98.68（3）°;V=1197.98（?）³,Z=2。讨论振动光谱（红外及拉曼）在配位过程中的变化。更多还原

【Abstract】 The single crystal of the complex of lanthanum nitrate with tetraoxadiaza macro cycle was obtained in the methyl cyanide. Its crystal and molecular structures have been determined. The results show that the La3+ is in disoder state in the hole of tetraoxadiaza macrocycle [cryptand(2.2)] and there are three positions in it. The complex crystallizes in triclinic system with space group P1-. The unit cell parameters are as follows, a=8.183(2)A, b=10.958(4)A, c=13.948(4)A, α=99.46(3)°,β=78.01(2)°, γ=98.68(3)°, V=1197.98A3, Z=2. The changes of vibrational spectra of cryptand (2.2) due to complex formation of the cryptand (2.2) with La3+ are discussed.更多还原