Copper(II) Carboxylates with 2,3,4-Trimethoxybenzoate and 2,4,6-Trimethoxybenzoate: Dinuclear Cu(II) Cluster and µ-Aqua-Bridged Cu(II) Chain Molecule
نویسندگان
چکیده
Copper(II) complexes with 2,3,4-trimethoxybenzoic acid (H234-tmbz) and 2,4,6-trimethoxybenzoic (H246-tmbz), [Cu2(234-tmbz)4(H2O)2] (6) [Cu(246-tmbz)2(µ-H2O)2(H2O)2]n (7), were synthesized characterized by elemental analysis, infrared UV-vis spectra temperature dependence of magnetic susceptibilities (1.9–300 K). The X-ray crystal structures revealed that the former 6 is a dinuclear cluster having syn-syn-bridged Cu2(µ-234-tmbz)4 core Cu···Cu separation 2.6009(7) Å, while latter 7 µ-aqua-bridged chain molecule consisting Cu(246-tmb)2(µ-H2O)2(H2O)2 units 4.1420(5) Å. Temperature showed an antiferromagnetic interaction 2J = ?272 cm?1 for weak J ?0.21 7, between two copper(II) ions. adsorption isotherm Types I behavior 125.4 m2g?1 specific surface area.
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ژورنال
عنوان ژورنال: Magnetochemistry
سال: 2021
ISSN: ['2312-7481']
DOI: https://doi.org/10.3390/magnetochemistry7030035