本文合成了通式为Ln(L-Pro)_3(H_2O)_2(ClO_4)_3(Ln=Pr、Nd、Er,L-Pro=L-脯氨酸)的固体配合物.元素分析、红外光谱、热分析对配合物进行了表征.培养了镨脯氨酸配合物的单晶,X射线四圓衍射确定了晶体的结构.晶体属于单斜晶系、空间群P2_1,α=0.9879(3),b=2.1883(4),c=1.3393(2)nm,β=91.23(2)°,V=2.895(1)nm~3,Z=2.晶体中每一个镨原子与来自6个L-脯氨酸羧基上的6个氧原子和2个结晶水分子键合,形成了一个八配位的稍有畸变的三角十二面体.每一个L-脯氨酸分子以羧基双齿方式与两个镨离子配位,形成了一个无限长的链状结构. In this paper, a solid complex of general formula Ln (L-Pro) _3 (H_2O) _2 (ClO_4) _3 (Ln = Pr, Nd, Er and L-Pro = L-proline) was synthesized. Elemental analysis, The crystal structure of the crystal was determined by X-ray four-circle diffraction.The crystal belongs to the monoclinic space group P2_1, α = 0.9879 (3) , b = 2.1883 (4), c = 1.3393 (2) nm, β = 91.23 (2) °, V = 2.895 (1) nm -3 and Z = The 6 oxygen atoms of the proline carboxyl group are bonded to two crystal water molecules to form an octahedrally distorted triangular dodecahedron. Each of the L-proline molecules is bound in a carboxy-bidentate manner with two Praseodymium ion coordination, forming an infinite chain structure.