Synthesis and crystal structure of a new three-dimensional cd(II) coordination polymer based on 5-(3′,4′-dicarboxylphenoxy)-isophthalic acid

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.

KEYWORDS:

• 5-(3′,4′-Dicarboxylphenoxy)-isophthalic acid
• coordination polymer
• crystal structure

Additional information

Funding

The Institutions of higher learning was supported this work key scientific research project of Henan Province (20A150028) and the Natural Science Foundation (182102310909) of Henan Province.