
人工晶体学报 ›› 2026, Vol. 55 ›› Issue (8): 1306-1312.DOI: 10.16553/j.cnki.issn1000-985x.2026.0002
收稿日期:2026-01-05
出版日期:2026-08-20
发布日期:2026-08-26
通信作者:
孙赞,博士,副教授。E-mail:sunzan_2006@126.com作者简介:马新晶(2002—),女,吉林省人,硕士研究生。E-mail:809748670@qq.com
基金资助:
MA Xinjing1(
), ZHAO Jiuzhou1, QIU Xiaowei1,2, SUN Zan1,2(
)
Received:2026-01-05
Online:2026-08-20
Published:2026-08-26
摘要: 利用4-磺酸基-N-(4-羧基苯基)-1,8-萘二甲酰亚胺(H2SCND)和2,2'-联吡啶(2,2'-bpy)为配体,采用溶剂热法合成了一例镉配合物{[Cd(SCND)(2,2'-bpy)(H2O)]·1.25H2O} n (CP1),通过元素分析(EA)、X射线单晶衍射(SXRD)、红外光谱(IR)、热重分析(TGA)、粉末X射线衍射(PXRD)进行表征。X射线单晶衍射分析结果显示,配合物CP1属于单斜晶系,P21/n空间群,晶胞参数为a=1.066 58(10) nm,b=1.098 37(10) nm,c=2.361 91(3) nm,β=100.527(10)°。中心金属Cd为六配位,位于扭曲的八面体几何构型中,参与配位的6个原子中,3个O原子(O2、O1#2和O7#1)分别来自3个不同SCND配体,2个N原子(N2和N3)来自2,2'-bpy,另有1个O原子(O1W)来自1个水分子。SCND配体连接Cd中心形成一维环链结构,相邻的环链之间通过C—H…O氢键、O—H…O氢键、π…π堆积形成了3D超分子结构。分析了Hirshfeld表面不同原子间接触的占比分布,其中H…H相互作用对分子表面贡献率为30.5%,居于首位。在固态荧光测试中,配合物CP1于378 nm激发波长下,在440 nm处呈现出显著的荧光发射峰,凸显出该配合物作为潜在蓝光材料的价值。
中图分类号:
马新晶, 赵九州, 邱潇薇, 孙赞. 一例镉配合物的合成、晶体结构及固态荧光性质[J]. 人工晶体学报, 2026, 55(8): 1306-1312.
MA Xinjing, ZHAO Jiuzhou, QIU Xiaowei, SUN Zan. Preparation, Crystal Structure and Solid-State Fluorescent Properties of a Cadmium Coordination Polymer[J]. Journal of Synthetic Crystals, 2026, 55(8): 1306-1312.
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Formula T/K Space group b/nm β/(°) Z μ/mm-1 Unique reflns/Rint R1, wR2[I>2σ(I)] | C29H21.5O9.25N3SCd 170 P21/n 1.098 37(10) 100.527(10) 4 7.708 5 465/0.036 3 0.026 1,0.071 3 | Mr Crystal syetem a/nm c/nm V/nm3 Dc/(g·cm-3) θ/(°) GOF R1, wR2(all data) | 704.46 Monoclinic 1.066 58(10) 2.361 91(3) 2 720.41(5) 1.720 3.807 to 75.880 1.071 0.026 6,0.071 9 |
表1 配合物CP1的晶体学数据及结构精修参数
Table 1 Crystallographic data and structural refinement parameters for complex CP1
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Formula T/K Space group b/nm β/(°) Z μ/mm-1 Unique reflns/Rint R1, wR2[I>2σ(I)] | C29H21.5O9.25N3SCd 170 P21/n 1.098 37(10) 100.527(10) 4 7.708 5 465/0.036 3 0.026 1,0.071 3 | Mr Crystal syetem a/nm c/nm V/nm3 Dc/(g·cm-3) θ/(°) GOF R1, wR2(all data) | 704.46 Monoclinic 1.066 58(10) 2.361 91(3) 2 720.41(5) 1.720 3.807 to 75.880 1.071 0.026 6,0.071 9 |
| Bond | Length/nm | Bond | Length/nm |
|---|---|---|---|
Cd(1)—O(7)#1 Cd(1)—N(2) Cd(1)—O(1)#2 | 0.220 67(15) 0.229 48(17) 0.231 84(16) | Cd(1)—O(2) Cd(1)—N(3) Cd(1)—O(1W) | 0.226 53(17) 0.230 88(18) 0.236 44(15) |
| Bond | Angle/(°) | Bond | Angle/(°) |
O(7)#1—Cd(1)—O(2) O(2)—Cd(1)—N(2) O(2)—Cd(1)—N(3) O(7)#1—Cd(1)—O(1)#2 N(2)—Cd(1)—O(1)#2 O(7)#1—Cd(1)—O(1W) N(2)—Cd(1)—O(1W) O(1)#2—Cd(1)—O(1W) | 96.62(6) 163.21(7) 92.79(7) 83.04(6) 91.05(7) 86.55(5) 94.87(6) 168.75(5) | O(7)#1—Cd(1)—N(2) O(7)#1—Cd(1)—N(3) N(2)—Cd(1)—N(2) O(2)—Cd(1)—O(1)#2 N(3)—Cd(1)—O(1)#2 O(2)—Cd(1)—O(1W) N(3)—Cd(1)—O(1W) | 99.74(7) 164.79(6) 72.04(7) 87.24(8) 109.41(6) 89.79(7) 81.55(6) |
表2 配合物CP1的部分键长和键角
Table 2 Partial bond lengths and bond angles of complex CP1
| Bond | Length/nm | Bond | Length/nm |
|---|---|---|---|
Cd(1)—O(7)#1 Cd(1)—N(2) Cd(1)—O(1)#2 | 0.220 67(15) 0.229 48(17) 0.231 84(16) | Cd(1)—O(2) Cd(1)—N(3) Cd(1)—O(1W) | 0.226 53(17) 0.230 88(18) 0.236 44(15) |
| Bond | Angle/(°) | Bond | Angle/(°) |
O(7)#1—Cd(1)—O(2) O(2)—Cd(1)—N(2) O(2)—Cd(1)—N(3) O(7)#1—Cd(1)—O(1)#2 N(2)—Cd(1)—O(1)#2 O(7)#1—Cd(1)—O(1W) N(2)—Cd(1)—O(1W) O(1)#2—Cd(1)—O(1W) | 96.62(6) 163.21(7) 92.79(7) 83.04(6) 91.05(7) 86.55(5) 94.87(6) 168.75(5) | O(7)#1—Cd(1)—N(2) O(7)#1—Cd(1)—N(3) N(2)—Cd(1)—N(2) O(2)—Cd(1)—O(1)#2 N(3)—Cd(1)—O(1)#2 O(2)—Cd(1)—O(1W) N(3)—Cd(1)—O(1W) | 99.74(7) 164.79(6) 72.04(7) 87.24(8) 109.41(6) 89.79(7) 81.55(6) |
图3 配合物CP1的晶体结构。(a)Cd(Ⅱ)离子的配位环境(对称码:#1 -x-1, -y+2, -z;#2 -x, -y+1, -z);(b)Cd(Ⅱ)离子的几何构型;(c)1D链结构;(d)3D超分子结构
Fig.3 Crystal structure of complex CP1. (a) Coordination environment of Cd(Ⅱ) ions (symmetry code: #1 -x-1, -y+2, -z; #2 -x, -y+1, -z); (b) coordination geometry of Cd(Ⅱ) center; (c) one-dimensional chain structure; (d) 3D supramolecular structure
| Label | Geometry | Distortion | Label | Geometry | Distortion |
|---|---|---|---|---|---|
HP-6 OC-6 JPPY-6 | Hexagon Octahedron Johnson pentagonal pyramid J2 | 28.943 2.043 24.262 | PPY-6 TPR-6 | Pentagonal pyramid Trigonal prism | 20.601 10.045 |
表3 SHAPE软件分析配合物CP1中Cd(Ⅱ)的几何构型
Table 3 Geometric configuration of Cd(Ⅱ) in complex CP1 was analyzed by the SHAPE software
| Label | Geometry | Distortion | Label | Geometry | Distortion |
|---|---|---|---|---|---|
HP-6 OC-6 JPPY-6 | Hexagon Octahedron Johnson pentagonal pyramid J2 | 28.943 2.043 24.262 | PPY-6 TPR-6 | Pentagonal pyramid Trigonal prism | 20.601 10.045 |
图4 配合物CP1的结构与热稳定表征。(a)红外光谱图;(b)热重曲线;(c)PXRD图谱
Fig.4 Structural and thermal stability characterization of CP1. (a) IR spectra; (b) thermogravimetric curve; (c) PXRD patterns
图5 (a)配合物CP1的Hirshfeld表面映像;(b)各类分子间相互作用的占比统计图;H…H(c)、H…O(d)、C…H(e)、C…C(f)相互作用的二维指纹图
Fig.5 (a) Hirshfeld surface mapping of complex CP1; (b) statistical plot of the proportion of various intermolecular interactions; 2D fingerprint plots of H…H (c), H…O (d), C…H (e) and C…C (f) interactions
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