Abstract

Under hydrothermal conditions a new Cd(II) polymer [Cd(dic)]_n 1 (H₄dic = 5-(3′,4′-Dicarboxylphenoxy)-isophthalic acid) was synthesized. The compound crystallizes in the space group C2 and the Monoclinic system, with b = 8.0043(9), a = 18.523(2), c = 16.5238(19) Å, β = 118.742(2)°,α = 90°, γ = 90°, Z = 1, V = 2148.1(4) ų, M_r = 2728.38, D_c = 2.109 Mg/m³, F(000) = 1332, μ = 2.059 mm⁻¹, the final wR = 0.0801 and R = 0.0317 for 3598 with I > 2σ(I) observed reflections. A three-dimensional (3D) network of the compound presents extended by both btc^4- anions for a chelating coordination mode in which the dic^4- anions employ. From the topology point of view, the structure with (4.6²)(4.6⁵.8⁴) topology net could be described as a (3,5)-connected 3D network. Elemental analyses, Infrared spectroscopy, powder X-ray diffraction properties of 1 are also investigated and thermogravimetric analysis.

摘要

在水热条件下，合成了一种新的 Cd(II) 聚合物 [Cd(dic)] _n 1 (H ₄ dic = 5-(3',4'-Dicarboxylphenoxy)-间苯二甲酸)。该化合物在空间群C2和单斜晶系中结晶，b  = 8.0043(9), a  = 18.523(2), c  = 16.5238(19) Å, β  = 118.742(2)°, α  = 90°, γ  = 90°, Z  = 1, V  = 2148.1(4) Å ³ , M _r = 2728.38, D _c = 2.109 Mg/m ³ , F (000) = 1332, μ = 2.059 mm ^-1， 对于 3598的最终wR  = 0.0801 和R = 0.0317，其中I  > 2 σ ( I ) 观察到的反射。该化合物的三维 (3D) 网络由两个 btc ^4-阴离子扩展，用于使用 dic ^4-阴离子的螯合配位模式。从拓扑的角度来看，具有 (4.6 ² )(4.6 ⁵ .8 ⁴ ) 拓扑网络的结构可以描述为一个 (3,5) 连接的 3D 网络。还研究了1 的元素分析、红外光谱、粉末 X 射线衍射特性和热重分析。