A new Ho(II) polymer [Ho(ctdc)]_n 1 (H₃ctdc = 5′-(4-Carboxyphenyl)-[1,1′:3′,1′′-terphenyl]-4,4′′-dicarboxylic acid) was synthesized under hydrothermal conditions. The compound crystallizes in the Monoclinic system, space groupP2(1)/c with a = 17.5782(4), b = 28.6807(5), c = 9.5889(2)Å, α = 90, β = 101.956(2), γ = 90°, V = 4729.44(16) ų, Z = 4, M_r = 618.34, D_c = 0.868 Mg/m³, μ = 3.321 mm⁻¹, F(000) = 1208, the final R = 0.0723 and wR = 0.2343 for 5974 observed reflections with I > 2σ(I). The compound presents a three-dimensional (3 D) network extended by both ctdc³⁻ anions in which the ctdc³⁻ anions employ a chelating coordination mode. From the topology point of view, the structure could be described as a 6-connected 3 D network with (4⁶. 6⁴) topology net. Infrared spectroscopy, elemental analyses, thermogravimetric analysis and powder X-ray diffraction properties of 1 are also investigated.

一种新型的Ho（II）聚合物[Ho（ctdc）] _n 1（H ₃ ctdc = 5'-（4-羧苯基）-[1,1'：3'，1''-三联苯] -4,4'' -二羧酸）是在水热条件下合成的。该化合物在单斜晶系系统中结晶，空间群P2（1）/ c为a = 17.5782（4），b = 28.6807（5），c = 9.5889（2）Å，α= 90，β= 101.956（2）， γ= 90°，V = 4729.44（16）一种³，ž = 4，中号_[R = 618.34，d _ç = 0.868毫克/米³，μ=3.321毫米^-1，˚F（000）= 1208，最终ř对于5974观察到的反射，当I >2σ（I）时= 0.0723，wR = 0.2343 。该化合物呈现出一个由两个ctdc ^3-阴离子扩展的三维（3 D）网络，其中ctdc ^3-阴离子采用螯合配位模式。从拓扑结构来看，该结构可以被描述为一个6连接3 d网络（4 ⁶ 6。⁴拓扑网）。还研究了1的红外光谱，元素分析，热重分析和粉末X射线衍射特性。