Citation: Botao QU, Qian WANG, Qian WANG, Ruiping ZHANG. Synthesis, crystal structures, and luminescence properties of zinc coordination polymers based on 2,5-dibromoterephthalate[J]. Chinese Journal of Inorganic Chemistry, ;2026, 42(5): 917-924. doi: 10.11862/CJIC.20260357 shu

Synthesis, crystal structures, and luminescence properties of zinc coordination polymers based on 2,5-dibromoterephthalate

Botao QU ^1,, ,
Qian WANG ¹ ,
Qian WANG ² ,
Ruiping ZHANG ^3,,

1.
Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan 030032, China
2.
Department of Medical Imaging, Shanxi Medical University, Taiyuan 030001, China
3.
The Radiology Department of Shanxi Provincial People's Hospital Affiliated to Shanxi Medical University, Taiyuan 030012, China

Corresponding author: Botao QU, beyondthj@163.com Ruiping ZHANG, zrp_7142@sxmu.edu.cn
Received Date: 28 November 2025
Revised Date: 8 January 2026

Figures(5)

Using 2,5-dibromoterephthalic acid as the main ligand (H₂L) and incorporating neutral nitrogen-containing ancillary ligands, namely 1, 3-bis(1H-imidazol-1-yl)benzene (1, 3-bib), 1, 4-bis(imidazol-1-ylmethyl)benzene (1, 4-bix), and 1, 4-bis(1H-imidazol-1-yl)butane (bbi), three new coordination polymers (1-3) were obtained by solvothermal reactions with Zn(NO₃)₂·6H₂O. Coordination polymer {[Zn₂(L)₂(1, 3-bib)₂]·H₂O}_n (1) exhibits a 1D double-stranded chain framework structure. Coordination polymer [Zn(L)(1, 4-bix)]_n (2) displays a two-fold interpenetrating 2D framework structure. The zinc ions are bridged by L^2- ligands to form 1D wavy chains, which are further connected via 1, 4-bix ligands to construct a 2D wavy network structure. Due to the flexibility of the 1, 4-bix ligand, two similar 2D layer structures interpenetrate each other, resulting in a two-fold interpenetrating 2D framework. Coordination polymer {[Zn₂(L)₂(bbi)₂]·0.3DMF}_n (3) exhibits a four-fold interpenetrating 3D framework structure. The zinc ions are linked by L^2- and bbi ligands to form 1D chains, which are further connected via L^2- ligands to form 2D layers. These layers are then bridged by bbi ligands to construct a 3D framework structure. Owing to the presence of channels in the framework, four identical 3D frameworks interpenetrate, forming a more complex four-fold interpenetrating 3D structure. Coordination polymers 1-3 all demonstrate good thermal stability and tunable fluorescence emission properties.
- 2,5-dibromoterephthalate,
- coordination polymers,
- framework structure,
- two-fold interpenetrating,
- luminescence properties
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Synthesis, crystal structures, and luminescence properties of zinc coordination polymers based on 2,5-dibromoterephthalate

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com