
人工晶体学报 ›› 2025, Vol. 54 ›› Issue (11): 1974-1982.DOI: 10.16553/j.cnki.issn1000-985x.2025.0071
孙文韬(
), 徐艳(
), 冯路顺, 孟文清, 郑伟健, 李新星, 李素芝(
)
收稿日期:2025-04-08
出版日期:2025-11-20
发布日期:2025-12-11
通信作者:
徐艳,博士,副教授。E-mail:17101@squ.edu.cn;
李素芝,博士,教授。E-mail:lisuzhi2005@sina.com
作者简介:孙文韬(2004—),男,江苏省人。E-mail:632393680@qq.com
基金资助:
SUN Wentao(
), XU Yan(
), FENG Lushun, MENG Wenqing, ZHENG Weijian, LI Xinxing, LI Suzhi(
)
Received:2025-04-08
Online:2025-11-20
Published:2025-12-11
摘要: 分别从单一手性和消旋配体出发,通过水热反应成功合成一对对映体配合物S/R-[Co6(cpap)4(1,2-dpe)4(H2O)5]·8H2O(S-1或R-1)和消旋配合物rac-[Co3(cpap)2(1,2-dpe)2(H2O)2]·4H2O(rac-2)(S(R)-cpapH3=S(R)-环己基丙胺酸膦酸,1,2-dpe=1,2-二(4-吡啶基)乙烯)。采用X射线单晶(粉末)衍射、红外光谱、元素分析表征了三个配合物的组成和结构。晶体结构分析表明,对映体(S-1或R-1)和消旋配合物(rac-2)具有相同的三维开放的超分子网络结构。晶体结构中包含由O—P—O桥联的单、双核交替的无机链,每条无机链均由单核钴((P)O—Co—O(P))桥联双核钴八元环(Co2(PO2)2)组成。相邻的链之间通过氢键连接成二维层状结构,这些层再进一步由辅助配体1,2-dpe交联成三维开放的超分子网络结构。本文还研究了配合物S-1、R-1和rac-2的热稳定性、手性光学活性和磁性质。
中图分类号:
孙文韬, 徐艳, 冯路顺, 孟文清, 郑伟健, 李新星, 李素芝. 基于手性/消旋配体的金属有机膦酸钴配合物的合成、晶体结构及磁学性能[J]. 人工晶体学报, 2025, 54(11): 1974-1982.
SUN Wentao, XU Yan, FENG Lushun, MENG Wenqing, ZHENG Weijian, LI Xinxing, LI Suzhi. Synthesis, Crystal Structure and Magnetic Properties of Metal Organic Cobalt Phosphonates Complexes Based on Chiral/Racemic Ligands[J]. Journal of Synthetic Crystals, 2025, 54(11): 1974-1982.
| Complex | S-1 | rac-2 |
|---|---|---|
| Empirical formula | C88H134Co6N12O33P4 | C44H66Co3N6O16P2 |
| Formula weight | 2 365.52 | 1 173.75 |
| Crystal system | Monoclinic | Monoclinic |
| Space-group | P21 | P21/c |
| a/nm | 1.092 790(10) | 1.025 83(4) |
| b/nm | 2.737 45(2) | 2.751 00(7) |
| c/nm | 1.766 610(2) | 1.071 20(4) |
| α/(°) | 90 | 90 |
| β/(°) | 90.622 0(10) | 117.899(5) |
| γ/(°) | 90 | 90 |
| V/nm3 | 5.284 43(9) | 2.676 3(19) |
| Z | 2 | 2 |
| Dc /(g·cm-3) | 1.487 | 1.459 |
| F (000) | 2 464.0 | 1 222.0 |
| θ range/(°) | 5.002 ≤2θ≤151.97 | 4.49≤2θ≤60.816 |
| Range of h, k, l | ± 13, ±34, -20, +22 | -14, 11, -37, 28, ±13 |
| Collected reflections | 61 684 | 22 146 |
| Unique reflections | 20 623 | 5 989 |
| Data/restraints/parameters | 20 623/280/1 353 | 5 989/545/444 |
| Absorption correction /mm-1 | 8.479 | 1.051 |
| Rint | 0.048 8 | 0.026 0 |
| R[I>2σ(I)] | R1=0.045 4, wR2=0.114 5 | R1=0.059 7, wR2=0.126 5 |
| R[all data] | R1=0.051 6, wR2=0.117 0 | R1=0.067 3, wR2=0.129 2 |
| Goodness of fit | 0.997 | 1.199 |
| Largest diff. peak and hole/(e·nm-3) | 960 and -700 | 690 and -620 |
| Flack parameter | -0.000 23(18) | 1 |
| CCDC | 2350648 | 2350649 |
表1 配合物S-1和rac-2的晶体结构数据
Table 1 Data of crystal structure S-1 and rac-2
| Complex | S-1 | rac-2 |
|---|---|---|
| Empirical formula | C88H134Co6N12O33P4 | C44H66Co3N6O16P2 |
| Formula weight | 2 365.52 | 1 173.75 |
| Crystal system | Monoclinic | Monoclinic |
| Space-group | P21 | P21/c |
| a/nm | 1.092 790(10) | 1.025 83(4) |
| b/nm | 2.737 45(2) | 2.751 00(7) |
| c/nm | 1.766 610(2) | 1.071 20(4) |
| α/(°) | 90 | 90 |
| β/(°) | 90.622 0(10) | 117.899(5) |
| γ/(°) | 90 | 90 |
| V/nm3 | 5.284 43(9) | 2.676 3(19) |
| Z | 2 | 2 |
| Dc /(g·cm-3) | 1.487 | 1.459 |
| F (000) | 2 464.0 | 1 222.0 |
| θ range/(°) | 5.002 ≤2θ≤151.97 | 4.49≤2θ≤60.816 |
| Range of h, k, l | ± 13, ±34, -20, +22 | -14, 11, -37, 28, ±13 |
| Collected reflections | 61 684 | 22 146 |
| Unique reflections | 20 623 | 5 989 |
| Data/restraints/parameters | 20 623/280/1 353 | 5 989/545/444 |
| Absorption correction /mm-1 | 8.479 | 1.051 |
| Rint | 0.048 8 | 0.026 0 |
| R[I>2σ(I)] | R1=0.045 4, wR2=0.114 5 | R1=0.059 7, wR2=0.126 5 |
| R[all data] | R1=0.051 6, wR2=0.117 0 | R1=0.067 3, wR2=0.129 2 |
| Goodness of fit | 0.997 | 1.199 |
| Largest diff. peak and hole/(e·nm-3) | 960 and -700 | 690 and -620 |
| Flack parameter | -0.000 23(18) | 1 |
| CCDC | 2350648 | 2350649 |
| Bond | Length/nm | Bond | Length/nm | Bond | Length/nm |
|---|---|---|---|---|---|
| Co1—O1 | 0.200 5(4) | Co3—O10A | 0.206 8(3) | Co5—O16 | 0.208 7(4) |
| Co1—O3 | 0.200 6(4) | Co3—O21 | 0.214 5(3) | Co5—O19 | 0.206 3(4) |
| Co1—O8 | 0.200 7(3) | Co3—O22 | 0.211 6(3) | Co5—O23 | 0.227 8(4) |
| Co1—N1 | 0.217 8(4) | Co3—N8B | 0.216 9(4) | Co5—N4 | 0.214 4(4) |
| Co1—N5 | 0.211 7(4) | Co3—N9 | 0.217 2(4) | Co5—N10 | 0.211 8(4) |
| Co2—O4 | 0.196 0(3) | Co4—O11 | 0.200 6(3) | Co6—O15 | 0.204 7(4) |
| Co2—O6 | 0.198 3(4) | Co4—O13 | 0.198 3(4) | Co6—O20A | 0.206 6(4) |
| Co2—O9 | 0.197 8(4) | Co4—O18 | 0.199 2(3) | Co6—O24 | 0.212 0(3) |
| Co2—N2 | 0.217 3(4) | Co4—N3 | 0.215 4(4) | Co6—O25 | 0.212 9(3) |
| Co2—N7 | 0.208 7(4) | Co4—N11 | 0.207 6(4) | Co6—N6C | 0.217 6(4) |
| Co3—O5 | 0.204 9(4) | Co5—O14 | 0.209 1(3) | Co6—N12D | 0.217 8(4) |
| Bond | Angle/(°) | Bond | Angle/(°) | Bond | Angle/(°) |
| O1—Co1—O3 | 119.43(16) | O5—Co3—O10A | 174.08(14) | O19—Co5—O14 | 99.97(14) |
| O1—Co1—O8 | 123.98(16) | O5—Co3—O21 | 93.22(14) | O19—Co5—O16 | 154.58(16) |
| O1—Co1—N1 | 78.58(15) | O5—Co3—O22 | 85.96(14) | O19—Co5—O23 | 83.12(14) |
| O1—Co1—N5 | 96.01(16) | O5—Co3—N8B | 88.43(16) | O19—Co5—N4 | 84.02(15) |
| O3—Co1—O8 | 114.83(15) | O5—Co3—N9 | 89.81(16) | O19—Co5—N10 | 93.90(17) |
| O3—Co1—N1 | 85.86(15) | O10A—Co3—O21 | 92.37(14) | N4—Co5—O23 | 100.15(15) |
| O3—Co1—N5 | 95.11(16) | O10A—Co3—O22 | 88.42(14) | N10—Co5—O23 | 82.10(16) |
| O8—Co1—N1 | 92.74(14) | O10A—Co3—N8B | 90.20(15) | N10—Co5—N4 | 176.71(17) |
| O8—Co1—N5 | 92.04(16) | O22—Co3—N9 | 90.25(16) | O16—Co5—N4 | 79.81(17) |
| N5—Co1—N1 | 174.20(16) | N8B—Co3—N9 | 174.27(16) | O16—Co5—N10 | 102.99(18) |
| O4—Co2—O6 | 113.06(16) | O11—Co4—N3 | 79.21(16) | O15—Co6—O20A | 171.39(15) |
| O4—Co2—O9 | 118.29(15) | O11—Co4—N11 | 95.92(16) | O15—Co6—O24 | 90.46(14) |
| O4—Co2—N2 | 89.07(15) | O13—Co4—O11 | 118.86(15) | O15—Co6—O25 | 87.50(14) |
| O4—Co2—N7 | 97.45(16) | O13—Co4—O18 | 115.51(14) | O15—Co6—O6C | 93.67(18) |
| O6—Co2—N2 | 79.06(16) | O13—Co4—N3 | 87.09(16) | O15—Co6—N12D | 88.58(17) |
| O6—Co2—N7 | 95.47(16) | O13—Co4—N11 | 92.54(17) | O20A—Co6—O24 | 95.41(14) |
| O9—Co2—O6 | 126.04(15) | O18—Co4—O11 | 123.92(16) | O20A—Co6—O25 | 86.91(13) |
| O9—Co2—N2 | 86.14(15) | O18—Co4—N3 | 90.97(15) | O20A—Co6—N6C | 93.01(17) |
| O9—Co2—N7 | 93.43(17) | O18—Co4—N11 | 94.44(16) | O20A—Co6—N12D | 85.06(16) |
| N7—Co2—N2 | 172.78(16) | N11—Co4—N3 | 174.17(17) | O24—Co6—O25 | 176.66(15) |
| O10A—Co3—N9 | 92.09(15) | O14—Co5—O23 | 170.77(14) | O24—Co6—N6C | 86.12(15) |
| O21—Co3—N8B | 83.94(15) | O14—Co5—N4 | 88.86(14) | O24—Co6—N12D | 90.75(15) |
| O21—Co3—N9 | 90.72(16) | O14—Co5—N10 | 89.00(15) | O25—Co6—N6C | 91.36(15) |
| O22—Co3—O21 | 178.73(15) | O16—Co5—O14 | 99.19(15) | O25—Co6—N12D | 91.84(15) |
| O22—Co3—N8B | 95.06(15) | O16—Co5—O23 | 80.59(15) | N6C—Co6—N12D | 176.16(18) |
表2 S-1主要的键长和键角数据
Table 2 Data of main bond lengths and bond angles of S-1
| Bond | Length/nm | Bond | Length/nm | Bond | Length/nm |
|---|---|---|---|---|---|
| Co1—O1 | 0.200 5(4) | Co3—O10A | 0.206 8(3) | Co5—O16 | 0.208 7(4) |
| Co1—O3 | 0.200 6(4) | Co3—O21 | 0.214 5(3) | Co5—O19 | 0.206 3(4) |
| Co1—O8 | 0.200 7(3) | Co3—O22 | 0.211 6(3) | Co5—O23 | 0.227 8(4) |
| Co1—N1 | 0.217 8(4) | Co3—N8B | 0.216 9(4) | Co5—N4 | 0.214 4(4) |
| Co1—N5 | 0.211 7(4) | Co3—N9 | 0.217 2(4) | Co5—N10 | 0.211 8(4) |
| Co2—O4 | 0.196 0(3) | Co4—O11 | 0.200 6(3) | Co6—O15 | 0.204 7(4) |
| Co2—O6 | 0.198 3(4) | Co4—O13 | 0.198 3(4) | Co6—O20A | 0.206 6(4) |
| Co2—O9 | 0.197 8(4) | Co4—O18 | 0.199 2(3) | Co6—O24 | 0.212 0(3) |
| Co2—N2 | 0.217 3(4) | Co4—N3 | 0.215 4(4) | Co6—O25 | 0.212 9(3) |
| Co2—N7 | 0.208 7(4) | Co4—N11 | 0.207 6(4) | Co6—N6C | 0.217 6(4) |
| Co3—O5 | 0.204 9(4) | Co5—O14 | 0.209 1(3) | Co6—N12D | 0.217 8(4) |
| Bond | Angle/(°) | Bond | Angle/(°) | Bond | Angle/(°) |
| O1—Co1—O3 | 119.43(16) | O5—Co3—O10A | 174.08(14) | O19—Co5—O14 | 99.97(14) |
| O1—Co1—O8 | 123.98(16) | O5—Co3—O21 | 93.22(14) | O19—Co5—O16 | 154.58(16) |
| O1—Co1—N1 | 78.58(15) | O5—Co3—O22 | 85.96(14) | O19—Co5—O23 | 83.12(14) |
| O1—Co1—N5 | 96.01(16) | O5—Co3—N8B | 88.43(16) | O19—Co5—N4 | 84.02(15) |
| O3—Co1—O8 | 114.83(15) | O5—Co3—N9 | 89.81(16) | O19—Co5—N10 | 93.90(17) |
| O3—Co1—N1 | 85.86(15) | O10A—Co3—O21 | 92.37(14) | N4—Co5—O23 | 100.15(15) |
| O3—Co1—N5 | 95.11(16) | O10A—Co3—O22 | 88.42(14) | N10—Co5—O23 | 82.10(16) |
| O8—Co1—N1 | 92.74(14) | O10A—Co3—N8B | 90.20(15) | N10—Co5—N4 | 176.71(17) |
| O8—Co1—N5 | 92.04(16) | O22—Co3—N9 | 90.25(16) | O16—Co5—N4 | 79.81(17) |
| N5—Co1—N1 | 174.20(16) | N8B—Co3—N9 | 174.27(16) | O16—Co5—N10 | 102.99(18) |
| O4—Co2—O6 | 113.06(16) | O11—Co4—N3 | 79.21(16) | O15—Co6—O20A | 171.39(15) |
| O4—Co2—O9 | 118.29(15) | O11—Co4—N11 | 95.92(16) | O15—Co6—O24 | 90.46(14) |
| O4—Co2—N2 | 89.07(15) | O13—Co4—O11 | 118.86(15) | O15—Co6—O25 | 87.50(14) |
| O4—Co2—N7 | 97.45(16) | O13—Co4—O18 | 115.51(14) | O15—Co6—O6C | 93.67(18) |
| O6—Co2—N2 | 79.06(16) | O13—Co4—N3 | 87.09(16) | O15—Co6—N12D | 88.58(17) |
| O6—Co2—N7 | 95.47(16) | O13—Co4—N11 | 92.54(17) | O20A—Co6—O24 | 95.41(14) |
| O9—Co2—O6 | 126.04(15) | O18—Co4—O11 | 123.92(16) | O20A—Co6—O25 | 86.91(13) |
| O9—Co2—N2 | 86.14(15) | O18—Co4—N3 | 90.97(15) | O20A—Co6—N6C | 93.01(17) |
| O9—Co2—N7 | 93.43(17) | O18—Co4—N11 | 94.44(16) | O20A—Co6—N12D | 85.06(16) |
| N7—Co2—N2 | 172.78(16) | N11—Co4—N3 | 174.17(17) | O24—Co6—O25 | 176.66(15) |
| O10A—Co3—N9 | 92.09(15) | O14—Co5—O23 | 170.77(14) | O24—Co6—N6C | 86.12(15) |
| O21—Co3—N8B | 83.94(15) | O14—Co5—N4 | 88.86(14) | O24—Co6—N12D | 90.75(15) |
| O21—Co3—N9 | 90.72(16) | O14—Co5—N10 | 89.00(15) | O25—Co6—N6C | 91.36(15) |
| O22—Co3—O21 | 178.73(15) | O16—Co5—O14 | 99.19(15) | O25—Co6—N12D | 91.84(15) |
| O22—Co3—N8B | 95.06(15) | O16—Co5—O23 | 80.59(15) | N6C—Co6—N12D | 176.16(18) |
| Bond | Length/nm | Bond | Length/nm | Bond | Length/nm |
|---|---|---|---|---|---|
| Co1—O2 | 0.197 9(5) | Co1—N2 | 0.207 4(4) | Co2—O6 | 0.219 0(3) |
| Co1—O3 | 0.192 1(3) | Co2—O4 | 0.199 4(2) | Co2—N3 | 0.216 9(3) |
| Co1—O5 | 0.203 8(4) | Co2—O4 | 0.199 4(2) | Co2—N3 | 0.216 9(3) |
| Co1—N1 | 0.214 8(9) | Co2—O6 | 0.219 0(3) | ||
| Bond | Angle/(°) | Bond | Angle/(°) | Bond | Angle/(°) |
| O2—Co1—O5A | 110.75(19) | O5A—Co1—N2 | 85.97(10) | O4—Co2—N3D | 89.33(11) |
| O2—Co1—N1 | 78.1(9) | N2—Co1—N1 | 94.03(10) | O6—Co2—O62 | 180.0 |
| O2—Co1—N2 | 96.8(2) | O4—Co2—O4B | 180.0 | N3D—Co2—O6 | 92.36(12) |
| O3—Co1—O2 | 136.83(19) | O4B—Co2—O6 | 85.97(10) | N3C—Co2—O6 | 87.64(12) |
| O3—Co1—O5A | 109.81(16) | O4B—Co2—O6B | 94.03(10) | N3C—Co2—O6B | 92.36(12) |
| O3—Co1—N1 | 86.1(6) | O4—Co2—O6 | 85.97(10) | N3D—Co2—O6B | 87.64(12) |
| O3—Co1—N2 | 93.53(16) | O4—Co2—N3C | 89.32(10) | N3D—Co2—N3C | 180.0 |
| O5A—Co1—N1 | 92.3(7) | O4B—Co2—N3C | 90.68(11) |
表3 rac-2主要的键长和键角数据
Table 3 Data of main bond lengths and bond angles of rac-2
| Bond | Length/nm | Bond | Length/nm | Bond | Length/nm |
|---|---|---|---|---|---|
| Co1—O2 | 0.197 9(5) | Co1—N2 | 0.207 4(4) | Co2—O6 | 0.219 0(3) |
| Co1—O3 | 0.192 1(3) | Co2—O4 | 0.199 4(2) | Co2—N3 | 0.216 9(3) |
| Co1—O5 | 0.203 8(4) | Co2—O4 | 0.199 4(2) | Co2—N3 | 0.216 9(3) |
| Co1—N1 | 0.214 8(9) | Co2—O6 | 0.219 0(3) | ||
| Bond | Angle/(°) | Bond | Angle/(°) | Bond | Angle/(°) |
| O2—Co1—O5A | 110.75(19) | O5A—Co1—N2 | 85.97(10) | O4—Co2—N3D | 89.33(11) |
| O2—Co1—N1 | 78.1(9) | N2—Co1—N1 | 94.03(10) | O6—Co2—O62 | 180.0 |
| O2—Co1—N2 | 96.8(2) | O4—Co2—O4B | 180.0 | N3D—Co2—O6 | 92.36(12) |
| O3—Co1—O2 | 136.83(19) | O4B—Co2—O6 | 85.97(10) | N3C—Co2—O6 | 87.64(12) |
| O3—Co1—O5A | 109.81(16) | O4B—Co2—O6B | 94.03(10) | N3C—Co2—O6B | 92.36(12) |
| O3—Co1—N1 | 86.1(6) | O4—Co2—O6 | 85.97(10) | N3D—Co2—O6B | 87.64(12) |
| O3—Co1—N2 | 93.53(16) | O4—Co2—N3C | 89.32(10) | N3D—Co2—N3C | 180.0 |
| O5A—Co1—N1 | 92.3(7) | O4B—Co2—N3C | 90.68(11) |
图3 配合物S-1的单晶结构。(a)配合物S-1的构筑单元,为清晰,省略了部分氢原子;(b)氢键链接无机链在ac面形成二维层状结构;(c)配合物S-1的堆积图
Fig.3 Single crystal structure of complex S-1. (a) Building unit of S-1, hydrogen atoms have been partially omitted for clarity; (b) layers made up of hydrogen-bonded inorganic chains in the ac plane; (c) packing diagrams for S-1. Symmetry codes: A: -1+x, +y, +z; B: 1-x, 1/2+y, -z; C: -1+x, -1+y, +z; D: 1-x, 1/2+y, 1-z
图4 配合物rac-2的单晶结构。(a)配合物的rac-2构筑单元,为清晰,省略了部分氢原子;(b)氢键链接无机链在ac面形成二维层状结构;(c)配合物rac-2的堆积图
Fig.4 Single crystal structure of complex rac-2. (a) Building unit of rac-2, hydrogen atoms have been partially omitted for clarity; (b) layers made up of hydrogen-bonded inorganic chains in the ac plane; (c) packing diagrams for rac-2. Symmetry codes:A:1-x, 1-y, 1-z; B: -x, 1-y, -z; C:-1+x, 3/2-y, -1/2+z; D: 1-x, -1/2+y, 1/2-z; E: 1+x, y, 1+z; F: x, 3/2-y, -1/2+z; G: 2-x, -1/2+y, 3/2-z
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