Journal of Synthetic Crystals ›› 2026, Vol. 55 ›› Issue (5): 809-815.DOI: 10.16553/j.cnki.issn1000-985x.2026.0004
• Research Articles • Previous Articles
ZHANG Liyang1(
), FENG Sisi2(
), DU Xueqin1, YANG Dongdong3
Received:2026-01-12
Online:2026-05-20
Published:2026-06-09
Contact:
FENG Sisi
CLC Number:
ZHANG Liyang, FENG Sisi, DU Xueqin, YANG Dongdong. Structure and Magnetic Properties of a Ni(Ⅱ) Complex Based on 2-(3-Pyridyl) Benzimidazole-5-Carboxylic Acid[J]. Journal of Synthetic Crystals, 2026, 55(5): 809-815.
| Complex | C26H22N6NiO7.50 |
|---|---|
| Formula weight | 597.21 |
| Temperature/K | 293 |
| Wavelength/Å | 0.710 73 |
| Crystal symmetry | Monoclinic |
| Space group | C2/c |
| a/nm | 1.300 91 (5) |
| b/nm | 1.576 15 (6) |
| c/nm | 2.536 3 (1) |
| α/(°) | 90 |
| β/(°) | 97.328 (1) |
| γ/(°) | 90 |
| V/nm3 | 5.158 0 (3) |
| Z | 8 |
| Dcalc/(g·cm-3) | 1.538 |
| μ/mm-1 | 0.813 |
| F(000) | 2 464 |
| Crystal size/mm | 0.13×0.15×0.25 |
| θ range for data collection | 3.1~25 |
| Rint | 0.038 1 |
| GOF | 0.894 |
| R [I>2σ(I)] | R1 =0.038 1,wR2=0.109 7 |
| R[all data] | R1 =0.040 3,wR2=0.111 8 |
| Largest diff. peak and hole/(e·nm-3) | 1 018 and -841 |
| CCDC | 2453600 |
Table 1 Crystallographic data for complex C26H22N6NiO7.50
| Complex | C26H22N6NiO7.50 |
|---|---|
| Formula weight | 597.21 |
| Temperature/K | 293 |
| Wavelength/Å | 0.710 73 |
| Crystal symmetry | Monoclinic |
| Space group | C2/c |
| a/nm | 1.300 91 (5) |
| b/nm | 1.576 15 (6) |
| c/nm | 2.536 3 (1) |
| α/(°) | 90 |
| β/(°) | 97.328 (1) |
| γ/(°) | 90 |
| V/nm3 | 5.158 0 (3) |
| Z | 8 |
| Dcalc/(g·cm-3) | 1.538 |
| μ/mm-1 | 0.813 |
| F(000) | 2 464 |
| Crystal size/mm | 0.13×0.15×0.25 |
| θ range for data collection | 3.1~25 |
| Rint | 0.038 1 |
| GOF | 0.894 |
| R [I>2σ(I)] | R1 =0.038 1,wR2=0.109 7 |
| R[all data] | R1 =0.040 3,wR2=0.111 8 |
| Largest diff. peak and hole/(e·nm-3) | 1 018 and -841 |
| CCDC | 2453600 |
| Bond | Length/nm | Bond | Angle/(°) |
|---|---|---|---|
| Ni1—O3 | 2.016 3 (19) | O3—Ni1—O2ii | 165.72 (8) |
| Ni1—O2ii | 2.032 4 (19) | O3—Ni1—N3 | 100.77 (8) |
| Ni1—N3 | 2.075 (2) | O2ii—Ni1—N3 | 93.47 (8) |
| Ni1—O5 | 2.087 (2) | O3—Ni1—O5 | 92.51 (8) |
| Ni1—N6i | 2.107 (2) | O2ii—Ni1—O5 | 87.34 (8) |
| Ni1—O1ii | 2.270 (2) | N3—Ni1—O5 | 85.90 (8) |
| O3—Ni1—N6iii | 90.52 (8) | ||
| O2ii—Ni1—N6iii | 89.84 (9) | ||
| N3—Ni1—N6iii | 93.11 (9) | ||
| O5—Ni1—N6iii | 176.94 (8) | ||
| O3—Ni1—O1ii | 105.06 (8) | ||
| O2ii—Ni1—O1ii | 60.67 (7) | ||
| N3—Ni1—O1ii | 154.00 (8) | ||
| O5—Ni1—O1ii | 89.98 (8) | ||
| N6iii—Ni1—O1ii | 89.67 (9) |
Table 2 Selected bond lengths and angles for C26H22N6NiO7.50
| Bond | Length/nm | Bond | Angle/(°) |
|---|---|---|---|
| Ni1—O3 | 2.016 3 (19) | O3—Ni1—O2ii | 165.72 (8) |
| Ni1—O2ii | 2.032 4 (19) | O3—Ni1—N3 | 100.77 (8) |
| Ni1—N3 | 2.075 (2) | O2ii—Ni1—N3 | 93.47 (8) |
| Ni1—O5 | 2.087 (2) | O3—Ni1—O5 | 92.51 (8) |
| Ni1—N6i | 2.107 (2) | O2ii—Ni1—O5 | 87.34 (8) |
| Ni1—O1ii | 2.270 (2) | N3—Ni1—O5 | 85.90 (8) |
| O3—Ni1—N6iii | 90.52 (8) | ||
| O2ii—Ni1—N6iii | 89.84 (9) | ||
| N3—Ni1—N6iii | 93.11 (9) | ||
| O5—Ni1—N6iii | 176.94 (8) | ||
| O3—Ni1—O1ii | 105.06 (8) | ||
| O2ii—Ni1—O1ii | 60.67 (7) | ||
| N3—Ni1—O1ii | 154.00 (8) | ||
| O5—Ni1—O1ii | 89.98 (8) | ||
| N6iii—Ni1—O1ii | 89.67 (9) |
Fig.2 Molecular structure, one-dimensional chain, two-dimensional layer-like structure, and topological structure of the complex [Ni(pbc)2(H2O)]·2.5H2O (1)
Fig.6 Temperature dependence ofχM andχMT for [Ni(pbc)2(H2O)]·2.5H2O (1), the inset shows the temperature (T) dependence of the reciprocal magnetic susceptibility (χM-1)
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