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Synthesize and structurally characterize two novel polymeric copper(II) coordination complexes formed with the bridging ligand 1,3-bis(1,2,4-triazol-1-yl)propane.

January 1, 2000European Journal of Inorganic Chemistry

Two Examples of Novel and Unusual Double-Layered, Two-Dimensional CuII Compounds with Bridging 1,3-Bis(1,2,4-triazol-1-yl)propane

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Authors

GAG.A. Van AlbadaLeiden University RGR.C. GuijtLeiden University JHJaap G. HaasnootLeiden University

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Implication

Structural analysis reveals novel double-layered two-dimensional networks in synthesized copper(II) coordination polymers, highlighting unique group–subgroup relationships in supramolecular systems.

Key Points

Synthesize and structurally characterize two novel polymeric copper(II) coordination complexes formed with the bridging ligand 1,3-bis(1,2,4-triazol-1-yl)propane.
Synthesized {[Cu(btp)2(CH3CN)(H2O)](CF3SO3)2}n (compound 1) and {[Cu(btp)2(CH3CN)2](ClO4)2}n (compound 2) containing bridging btp ligands.
Determined crystal structures via X-ray diffraction, solving 1 in space group P21/c and 2 in space group Pna21.
Characterized structural, vibrational, and electronic properties using far-infrared spectroscopy, EPR spectroscopy, and magnetic susceptibility measurements.
Single-crystal X-ray diffraction revealed two-dimensional curved networks pairing into double layers separated by 2.12 Å in 1 (R1 = 0.0683) and 1.98 Å in 2 (R1 = 0.0846), with double-layer spacings of 10.05 Å and 9.385 Å, respectively.
Copper(II) centers display distorted octahedral geometry with equatorial N4 coordination from triazole ligands and axial solvent coordination, showing ligand-field absorption peaks at roughly 16·10³ cm⁻¹.
EPR and magnetic susceptibility measurements demonstrated no significant magnetic exchange interactions between copper(II) ions within the engineered lattice.

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Albada et al. (2000) studied this question.

synapsesocial.com/papers/6aa7138c4bfde8663e6df895 https://doi.org/10.1002/(sici)1099-0682(200001)2000:1<121::aid-ejic121>3.0.co;2-d

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Implication

Structural analysis reveals novel double-layered two-dimensional networks in synthesized copper(II) coordination polymers, highlighting unique group–subgroup relationships in supramolecular systems.

Two Examples of Novel and Unusual Double-Layered, Two-Dimensional CuII Compounds with Bridging 1,3-Bis(1,2,4-triazol-1-yl)propane

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Cite This Study

Two Examples of Novel and Unusual Double-Layered, Two-Dimensional CuII Compounds with Bridging 1,3-Bis(1,2,4-triazol-1-yl)propane

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