Home Physical Sciences Crystal structure of bis(acetato-κ1O)-bis(methanol-κ1O)-(1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-ol) cobalt(II), C34H50Cl2N6O10Co
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Crystal structure of bis(acetato-κ1O)-bis(methanol-κ1O)-(1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-ol) cobalt(II), C34H50Cl2N6O10Co

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Published/Copyright: December 29, 2025

Abstract

C34H50Cl2N6O10Co, triclinic, P 1 ̅ , a = 8.9911(16) Å, b = 10.3511(19) Å, c = 12.843(4) Å, α = 108.315(4)°, β = 108.872(4)°, γ = 97.462(3)°, V = 1037.5(4) A3, Z = 1, R gt (F) = 0.0415, w R ref (F2) = 0.1266, T = 296(2) K.

CCDC no.: 2471607 

The molecular structure is shown in the figure. Table 1 contains the crystallographic data and the list of the atoms including atomic coordinates and displacement parameters can be found in the cif-file attached to this article.

Table 1:

Data collection and handling.

Crystal: Red block
Size: 0.18 × 0.14 × 0.10 mm
Wavelength: Mo Kα radiation (0.71073 Å)
µ: 0.60 mm−1
Diffractometer, scan mode: Bruker APEX-II, φ and ω scans
θmax, completeness: 25.4°, 99 %
N(hkl)measured, N(hkl)unique, Rint: 5373, 3759, 0.016
Criterion for Iobs, N(hkl)gt: Iobs > 2σ(Iobs), 3012
N(param)refined: 250
Programs: Bruker, 1 SHELX, 2 , 3 Diamond, 4 Olex2 5

1 Source of material

The 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-ol (0.2958 g, 1.00 mmol) was dissolved in methanol (10 mL). Subsequently, cobalt(II) acetate tetrahydrate (0.1245 g, 0.5 mmol) was added to the solution. The reaction mixture was stirred at room temperature for 2 h. The red block crystals of the target complex were obtained through slow evaporation of the ethanol.

2 Experimental details

Hydrogen atoms were placed in their geometrically idealized positions and constrained to ride on their parent atoms, with C–H = 0.96 Å (methyl), Uiso(H) = 1.5 Ueq(C), C–H = 0.98 Å (methine), Uiso(H) = 1.2 Ueq(C), C–H = 0.93 Å (aromatic and alkenyl), Uiso(H) = 1.2 Ueq(C), and O–H = 0.82 Å (hydroxyl), Uiso(H) = 1.5 Ueq(O).

3 Comment

Fungi are responsible for severe infectious diseases affecting plants worldwide. Among microorganisms, fungi cause the most economic damage to crops. 6 , 7 The 1,2,4-triazole fungicides are the most commonly used drugs to control fungal diseases in crops. 8 However, widespread application has accelerated the emergence of resistant strains. 9 , 10 To enhance bioactivity and reduce antifungal resistance, structural modifications of 1,2,4-triazole fungicides, such as coordination with metal salts have been explored. 11 , 12 , 13 Triadimenol, 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-ol, is a highly efficient 1,2,4-triazole fungicide characterized by low toxicity, minimal residue, and prolonged efficacy. It effectively controls powdery mildew, rust disease, leaf spots and anthracnose. In this paper, a novel triadimenol Co(II) complex is described.

The asymmetric unit of the title complex contains one half of Co(II) cation, one acetate anion, one triadimenol ligand and one methanol molecule. The Co(II) center exhibits a distorted octahedral coordination geometry, defined by two oxygen atoms from two acetate anions, two nitrogen atoms of the triadimenol triazole rings, and two oxygen atoms from methanol molecules. The Co–N length (Co–N1 = 2.132(2) Å), Co–O lengths (Co–O4 = 2.0911(19) Å, Co–O5 = 2.114(2) Å), and the bond angles of N1–Co–O4, O4–Co–N1i, O4–Co–O5, O4–Co–O5i, N1–Co–O5, and O5–Co–N1i ( 88.70 8 ° , 91.30 8 ° , 88.86 8 ° , 91.14 8 ° , 92.10 9 ° , and 87.90 9 ° , respectively, symmetry code: (i) −x + 1, −y, −z) are all in the expected ranges. All the bond angles of N1–Co–N1i, O4–Co–O4i, and O5–Co–O5i are 180 ° , which indicates that the atoms in the equatorial plane form a perfect plane. There is one kind of intermolecular hydrogen bond in the crystal structure: O2 atom acts as hydrogen bond donor to O3 atom from the adjacent molecule, generating O2–H2–O3ii (symmetry code: (ii) −x + 2, −y, −z). The intermolecular hydrogen bond contributes to the formation of a one-dimensional chain in the crystal structure of the complex. Furthermore, the 1D chains are connected by van der Waals forces to give rise to the 3D framework. The title structure is structurally closely related to the corresponding copper complex. 13


Corresponding author: Jie Li, College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan, 464000, P.R. China, E-mail:

  1. Conflict of interest: The authors declare no conflicts of interest regarding this article.

  2. Research funding: The work was supported by National Natural Science Foundation of China (22003055) and Nanhu Scholars Program for Young Scholars of the Xinyang Normal University.

  3. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

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Received: 2025-09-04
Accepted: 2025-12-13
Published Online: 2025-12-29
Published in Print: 2026-04-24

© 2025 the author(s), published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 International License.

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