Journal of Synthetic Crystals ›› 2025, Vol. 54 ›› Issue (11): 1967-1973.DOI: 10.16553/j.cnki.issn1000-985x.2025.0132
• Research Articles • Previous Articles Next Articles
CHENG Shuang(
), MA Jia, SUN Chang(
), LI Xiaohui(
)
Received:2025-06-19
Online:2025-11-20
Published:2025-12-11
CLC Number:
CHENG Shuang, MA Jia, SUN Chang, LI Xiaohui. Synthesis, Structure, and Electrochemical Sensing Performances of an Anderson-Type Polyoxometalate-Based Metal-Organic Complex Constructed with Pyrimidine Formamide Ligand[J]. Journal of Synthetic Crystals, 2025, 54(11): 1967-1973.
| Compound | 1 |
|---|---|
| Empirical formula | C14H52Mo6N6O44TeZn3 |
| Formula weight | 1 907.96 |
| Crystal system | Triclinic |
| Space group | P-1 |
| a/Å | 10.817 6(3) |
| b/Å | 11.678 0(4) |
| c/Å | 11.790 9(3) |
| α/(°) | 74.936(10) |
| β/(°) | 68.150(10) |
| γ/(°) | 63.864(10) |
| V/Å3 | 1 232.90(6) |
| Z | 1 |
| Dc /(g·cm-3) | 2.570 |
| μ/mm-1 | 3.608 |
| F(000) | 924 |
| Reflections collected | 42 503 |
| Unique reflections | 4 850 |
| Data/restraints/parameters | 4 850/14/391 |
| Rint | 0.042 6 |
| GOF | 1.151 |
| R [I>2σ(I)] | R1=0.021 3, wR2=0.050 3 |
| R [all data] | R1=0.023 3, wR2=0.052 5 |
Table 1 Crystal structure data of compound 1
| Compound | 1 |
|---|---|
| Empirical formula | C14H52Mo6N6O44TeZn3 |
| Formula weight | 1 907.96 |
| Crystal system | Triclinic |
| Space group | P-1 |
| a/Å | 10.817 6(3) |
| b/Å | 11.678 0(4) |
| c/Å | 11.790 9(3) |
| α/(°) | 74.936(10) |
| β/(°) | 68.150(10) |
| γ/(°) | 63.864(10) |
| V/Å3 | 1 232.90(6) |
| Z | 1 |
| Dc /(g·cm-3) | 2.570 |
| μ/mm-1 | 3.608 |
| F(000) | 924 |
| Reflections collected | 42 503 |
| Unique reflections | 4 850 |
| Data/restraints/parameters | 4 850/14/391 |
| Rint | 0.042 6 |
| GOF | 1.151 |
| R [I>2σ(I)] | R1=0.021 3, wR2=0.050 3 |
| R [all data] | R1=0.023 3, wR2=0.052 5 |
| Bond length/Å | |||
|---|---|---|---|
| Zn1—O1 | 2.108 9(17) | Zn2—O2 | 2.093 9(16) |
| Zn1—O3W | 2.097 0(2) | Zn2—O2#2 | 2.093 9(16) |
| Zn1—O2W | 2.036 9(18) | Zn2—O5W | 2.043 6(18) |
| Zn1—O1W | 2.040 4(19) | Zn2—O5W#2 | 2.043 6(19) |
| Zn1—N1 | 2.186 5(19) | Zn2—N2#2 | 2.194 3(19) |
| Zn1—O4W | 2.123 0(2) | Zn2—N2 | 2.194 4(19) |
| Bond angle/(°) | |||
| O1—Zn1—O4W | 90.66(8) | O2—Zn2—O2#2 | 180.00(10) |
| O3W—Zn1—O1 | 86.54(8) | O2#2—Zn2—N2 | 89.70(7) |
| O3W—Zn1—N1 | 91.37(8) | O2—Zn2—N2 | 90.30(7) |
| O3W—Zn1—O4W | 177.19(8) | O2#2—Zn2—N2#2 | 90.29(7) |
| O2W—Zn1—O1 | 173.39(8) | O2—Zn2—N2#2 | 89.71(7) |
| O2W—Zn1—O3W | 96.15(8) | O5W—Zn2—O2#2 | 89.37(7) |
| O2W—Zn1—O1W | 96.73(8) | O5W—Zn2—O2 | 90.63(7) |
| O2W—Zn1—N1 | 98.16(8) | O5W#2—Zn2—O2 | 89.37(7) |
| O2W—Zn1—O4W | 86.65(8) | O5W#2—Zn2—O2#2 | 90.63(7) |
| O1W—Zn1—O1 | 89.18(8) | O5W#2—Zn2—O5W | 180 |
| O1W—Zn1—O3W | 92.43(9) | O5W#2—Zn2—N2 | 88.86(8) |
| O1W—Zn1—N1 | 164.15(8) | O5W—Zn2—N2#2 | 88.86(8) |
| O1W—Zn1—O4W | 87.33(9) | O5W—Zn2—N2 | 91.14(8) |
| O4W—Zn1—N1 | 88.13(8) | O5W#2—Zn2—N2#2 | 91.14(8) |
| O1—Zn1—N1 | 75.69(7) | N2#2—Zn2—N2 | 180 |
Table 2 Main bond lengths and bond angles of compound 1
| Bond length/Å | |||
|---|---|---|---|
| Zn1—O1 | 2.108 9(17) | Zn2—O2 | 2.093 9(16) |
| Zn1—O3W | 2.097 0(2) | Zn2—O2#2 | 2.093 9(16) |
| Zn1—O2W | 2.036 9(18) | Zn2—O5W | 2.043 6(18) |
| Zn1—O1W | 2.040 4(19) | Zn2—O5W#2 | 2.043 6(19) |
| Zn1—N1 | 2.186 5(19) | Zn2—N2#2 | 2.194 3(19) |
| Zn1—O4W | 2.123 0(2) | Zn2—N2 | 2.194 4(19) |
| Bond angle/(°) | |||
| O1—Zn1—O4W | 90.66(8) | O2—Zn2—O2#2 | 180.00(10) |
| O3W—Zn1—O1 | 86.54(8) | O2#2—Zn2—N2 | 89.70(7) |
| O3W—Zn1—N1 | 91.37(8) | O2—Zn2—N2 | 90.30(7) |
| O3W—Zn1—O4W | 177.19(8) | O2#2—Zn2—N2#2 | 90.29(7) |
| O2W—Zn1—O1 | 173.39(8) | O2—Zn2—N2#2 | 89.71(7) |
| O2W—Zn1—O3W | 96.15(8) | O5W—Zn2—O2#2 | 89.37(7) |
| O2W—Zn1—O1W | 96.73(8) | O5W—Zn2—O2 | 90.63(7) |
| O2W—Zn1—N1 | 98.16(8) | O5W#2—Zn2—O2 | 89.37(7) |
| O2W—Zn1—O4W | 86.65(8) | O5W#2—Zn2—O2#2 | 90.63(7) |
| O1W—Zn1—O1 | 89.18(8) | O5W#2—Zn2—O5W | 180 |
| O1W—Zn1—O3W | 92.43(9) | O5W#2—Zn2—N2 | 88.86(8) |
| O1W—Zn1—N1 | 164.15(8) | O5W—Zn2—N2#2 | 88.86(8) |
| O1W—Zn1—O4W | 87.33(9) | O5W—Zn2—N2 | 91.14(8) |
| O4W—Zn1—N1 | 88.13(8) | O5W#2—Zn2—N2#2 | 91.14(8) |
| O1—Zn1—N1 | 75.69(7) | N2#2—Zn2—N2 | 180 |
Fig.6 Current response of 1-CPE with addition of Cr(Ⅵ) (a) and Fe(Ⅲ) (b) in a 0.1 mol/L H2SO4 + 0.5 mol/L Na2SO4 electrolyte solution; plots of response current versus substrate concentration for Cr(Ⅵ) (c) and Fe(Ⅲ) (d)
Fig.7 Current response of 1-CPE to Cr(Ⅵ) (a) and Fe(Ⅲ) (b) when potential interfering substances were added to the 0.1 mol/L H2SO4+0.5 mol/L Na2SO4 electrolyte solution
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