
人工晶体学报 ›› 2025, Vol. 54 ›› Issue (9): 1633-1641.DOI: 10.16553/j.cnki.issn1000-985x.2025.0055
舒航1(
), 王海涛1, 聂静嫄1, 黄菊1, 白静1, 王宝清2
收稿日期:2025-03-21
出版日期:2025-09-20
发布日期:2025-09-23
作者简介:舒航(1986—),男,河南省人,硕士,讲师。E-mail:3049956297@qq.com
基金资助:
SHU Hang1(
), WANG Haitao1, NIE Jingyuan1, HUANG Ju1, BAI Jing1, WANG Baoqing2
Received:2025-03-21
Online:2025-09-20
Published:2025-09-23
摘要: 在溶剂热条件下,以H2(3-PDCA)配体、BIPY配体和Cu(NO3)2·3H2O为反应物,构筑了两例新型Cu(Ⅱ)配位聚合物(简称:配合物):[Cu2(H2O)3(3-PDCA)2]·2H2O(1)和{[Cu2(BIPY)(3-PDCA)2]·H2O} n (2)。其中,H2(3-PDCA)为1-(3-羧基苯基)-5-甲基-4-氧代-1,4-二氢吡嗪-3-羧酸,BIPY为4,4'-联吡啶。铝离子(Al3+)的环境毒性及其检测需求促使本研究开发基于配合物的荧光探针。X射线单晶衍射表明:配合物1呈现特殊的四节点环状结构,配合物2呈现有趣的六节点菱形二维结构。PXRD、FT-IR和TGA证实了两种配合物的结构完整性。固体荧光测试表明,配合物1对Al3+具有高选择性检测能力,检出限低至2.11×10-5 mol·L-1,优于多数同类材料。配合物1可作为一种高效Al3+荧光传感器,为环境监测提供新策略。
中图分类号:
舒航, 王海涛, 聂静嫄, 黄菊, 白静, 王宝清. 哒嗪羧基配体构筑的铜(Ⅱ)配合物及其荧光传感性能研究[J]. 人工晶体学报, 2025, 54(9): 1633-1641.
SHU Hang, WANG Haitao, NIE Jingyuan, HUANG Ju, BAI Jing, WANG Baoqing. Pyridazine Carboxyl Ligand to Construct Copper(Ⅱ) Complex and Its Fluorescence Sensing Performance[J]. Journal of Synthetic Crystals, 2025, 54(9): 1633-1641.
| 参数 | {[Cu2(H2O)3(3-PDCA)2]·2H2O}(1) | {[Cu2(BIPY)(3-PDCA)2]·H2O} n (2) |
|---|---|---|
| 经验分子式 | C26H32Cu2N4O15 | C18H14CuN3O6 |
| 相对分子量 | 767.73 | 431.86 |
| 温度/K | 293(2) | 100.15 |
| 晶系 | 斜方晶系 | 单斜晶系 |
| 空间群 | Imma | P21/n |
| a/Å | 24.418 8(7) | 6.589(6) |
| b/Å | 40.690 3(8) | 16.950(16) |
| c/Å | 7.089 6(2) | 14.863(14) |
| α/(°) | 90 | 90 |
| β/(°) | 90 | 97.73(3) |
| γ/(°) | 90 | 90 |
| 单胞体积/Å3 | 7 044.3(3) | 1 645(3) |
| Z | 8 | 4 |
| 计算密度/(g·cm-3) | 1.448 | 1.744 |
| R1, wR2[I>2(I)] | R1=0.057 3, wR2=0.166 0 | R1=0.087 3, wR2=0.213 8 |
| R1, wR2(所有数据) | R1=0.066 0, wR2=0.178 6 | R1=0.140 4, wR2=0.244 8 |
表1 配合物1和2的晶体学数据
Table 1 Crystallographic data of complexes 1 and 2
| 参数 | {[Cu2(H2O)3(3-PDCA)2]·2H2O}(1) | {[Cu2(BIPY)(3-PDCA)2]·H2O} n (2) |
|---|---|---|
| 经验分子式 | C26H32Cu2N4O15 | C18H14CuN3O6 |
| 相对分子量 | 767.73 | 431.86 |
| 温度/K | 293(2) | 100.15 |
| 晶系 | 斜方晶系 | 单斜晶系 |
| 空间群 | Imma | P21/n |
| a/Å | 24.418 8(7) | 6.589(6) |
| b/Å | 40.690 3(8) | 16.950(16) |
| c/Å | 7.089 6(2) | 14.863(14) |
| α/(°) | 90 | 90 |
| β/(°) | 90 | 97.73(3) |
| γ/(°) | 90 | 90 |
| 单胞体积/Å3 | 7 044.3(3) | 1 645(3) |
| Z | 8 | 4 |
| 计算密度/(g·cm-3) | 1.448 | 1.744 |
| R1, wR2[I>2(I)] | R1=0.057 3, wR2=0.166 0 | R1=0.087 3, wR2=0.213 8 |
| R1, wR2(所有数据) | R1=0.066 0, wR2=0.178 6 | R1=0.140 4, wR2=0.244 8 |
| Bond | Bond length/Å | Bond | Bond angle/(°) |
|---|---|---|---|
| Cu(1)—O(1) | 1.906(3) | O(1)—Cu(1)—O(1)#1 | 83.78(15) |
| Cu(1)—O(1)#1 | 1.906(3) | O(1)—Cu(1)—O(4)#1 | 169.61(14) |
| Cu(1)—O(4) | 1.934(2) | O(11)—Cu(1)—O(4)#1 | 91.65(11) |
| Cu(1)—O(4)#1 | 1.934(2) | O(1)—Cu(1)—O(4) | 91.65(11) |
| Cu(2)—O(6)#2 | 1.912(2) | C(8)—O(1)—Cu(1) | 126.9(2) |
| Cu(2)—O(6) | 1.911(2) | C(4)—O(4)—Cu(1) | 131.4(2) |
| Cu(2)—O(8) | 2.029(3) | C(11)—O(6)—Cu(2) | 129.6(2) |
| Cu(2)—O(10) | 1.935(4) | C(13)—N(1)—N(2) | 118.1(3) |
表2 配合物1的主要键长和键角
Table 2 Main bond length and bond angle of complex 1
| Bond | Bond length/Å | Bond | Bond angle/(°) |
|---|---|---|---|
| Cu(1)—O(1) | 1.906(3) | O(1)—Cu(1)—O(1)#1 | 83.78(15) |
| Cu(1)—O(1)#1 | 1.906(3) | O(1)—Cu(1)—O(4)#1 | 169.61(14) |
| Cu(1)—O(4) | 1.934(2) | O(11)—Cu(1)—O(4)#1 | 91.65(11) |
| Cu(1)—O(4)#1 | 1.934(2) | O(1)—Cu(1)—O(4) | 91.65(11) |
| Cu(2)—O(6)#2 | 1.912(2) | C(8)—O(1)—Cu(1) | 126.9(2) |
| Cu(2)—O(6) | 1.911(2) | C(4)—O(4)—Cu(1) | 131.4(2) |
| Cu(2)—O(8) | 2.029(3) | C(11)—O(6)—Cu(2) | 129.6(2) |
| Cu(2)—O(10) | 1.935(4) | C(13)—N(1)—N(2) | 118.1(3) |
| Bond | Bond length/Å | Bond | Bond angle/(°) |
|---|---|---|---|
| Cu(1)—O(2) | 1.899(5) | O(2)—Cu(1)—O(4)#1 | 170.9(2) |
| Cu(1)—O(4)#1 | 1.908(5) | O(2)—Cu(1)—O(1) | 90.5(2) |
| Cu(1)—O(1) | 1.913(5) | O(2)—Cu(1)—N(3) | 87.2(2) |
| Cu(1)—N(3) | 2.012(5) | O(4)—Cu(1)—O(1) | 91.1(2) |
| C(3)—C(2) | 1.385(9) | N(1)—N(2)—C(8) | 122.6(5) |
| C(3)—C(4) | 1.370(9) | N(1)—N(2)—C(4) | 115.1(5) |
| C(9)—C(11) | 1.405(8) | C(8)—N(2)—C(4) | 122.3(5) |
| C(9)—C(8) | 1.350(9) | C(4)—C(3)—C(2) | 118.9(6) |
表3 配合物2的主要键长和键角
Table 3 Main bond length and bond angle of complex 2
| Bond | Bond length/Å | Bond | Bond angle/(°) |
|---|---|---|---|
| Cu(1)—O(2) | 1.899(5) | O(2)—Cu(1)—O(4)#1 | 170.9(2) |
| Cu(1)—O(4)#1 | 1.908(5) | O(2)—Cu(1)—O(1) | 90.5(2) |
| Cu(1)—O(1) | 1.913(5) | O(2)—Cu(1)—N(3) | 87.2(2) |
| Cu(1)—N(3) | 2.012(5) | O(4)—Cu(1)—O(1) | 91.1(2) |
| C(3)—C(2) | 1.385(9) | N(1)—N(2)—C(8) | 122.6(5) |
| C(3)—C(4) | 1.370(9) | N(1)—N(2)—C(4) | 115.1(5) |
| C(9)—C(11) | 1.405(8) | C(8)—N(2)—C(4) | 122.3(5) |
| C(9)—C(8) | 1.350(9) | C(4)—C(3)—C(2) | 118.9(6) |
图9 配合物2的2维网状结构在平行于b轴方向上的锯齿结构示意图
Fig.9 2D network structure of complex 2 is a schematic diagram of the sawtooth structure in the direction parallel to the b-axis
图18 配合物1在逐渐加入0.1 mol/L水溶液的Al3+时发光增强示意图
Fig.18 Schematic illustration of fluorescence enhancement of complex 1 upon gradual addition of 0.1 mol/L aqueous solution of Al3+
| 名称 | 检测限/(mol·L-1) | 溶剂 | 文献 |
|---|---|---|---|
| Zn(DMA)(TBA) | 1.97×10-6 | 水 | [ |
| UiO-66-NH2-SA | 6.98×10-6 | 水 | [ |
| [Co2(dmimpym)(nda)2] n | 0.7×10-3 | N,N二甲基甲酰胺 | [ |
| Cd-MOF | 9.3×10-5 | 水 | [ |
| Co-MOF | 3.54×10-5 | 水 | [ |
| Tb-MOF | 5.66×10-6 | 水/N,N二甲基甲酰胺 | [ |
| [Zn(2-ata)(bidpe)] n | 3.17×10-6 | 水 | [ |
| Cd-MOF-1 | 6.1×10-5 | 水/N,N二甲基甲酰胺 | [ |
| Cd-MOF-2 | 5.6×10-6 | 水 | [ |
| [Co2(dmimpym)(nda)2] n | 7.0×10-5 | 水/N,N二甲基甲酰胺 | [ |
| {[Cu2(H2O)3(PDCA)2]·2H2O} | 2.11×10-5 | 水 | 本文 |
表4 多种荧光传感材料的Al3+性能对比
Table 4 Performance comparison between various fluorescent sensors for Al3+
| 名称 | 检测限/(mol·L-1) | 溶剂 | 文献 |
|---|---|---|---|
| Zn(DMA)(TBA) | 1.97×10-6 | 水 | [ |
| UiO-66-NH2-SA | 6.98×10-6 | 水 | [ |
| [Co2(dmimpym)(nda)2] n | 0.7×10-3 | N,N二甲基甲酰胺 | [ |
| Cd-MOF | 9.3×10-5 | 水 | [ |
| Co-MOF | 3.54×10-5 | 水 | [ |
| Tb-MOF | 5.66×10-6 | 水/N,N二甲基甲酰胺 | [ |
| [Zn(2-ata)(bidpe)] n | 3.17×10-6 | 水 | [ |
| Cd-MOF-1 | 6.1×10-5 | 水/N,N二甲基甲酰胺 | [ |
| Cd-MOF-2 | 5.6×10-6 | 水 | [ |
| [Co2(dmimpym)(nda)2] n | 7.0×10-5 | 水/N,N二甲基甲酰胺 | [ |
| {[Cu2(H2O)3(PDCA)2]·2H2O} | 2.11×10-5 | 水 | 本文 |
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