A Dimeric Copper(II) Complex of Oxalate and Oxamide Dioxime Ligands: Synthesis, Crystal Structure, Thermal Stability, and Magnetic Properties
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Justin Nenwa
,
Patrick L. Djonwouo
The dimeric copper(II) complex [Cu(C2O4)(H2oxado)(H2O)]2 (1), where H2oxado=oxamide dioxime, has been synthesized in water and characterized by elemental and thermal analyses, IR spectroscopy, and single-crystal X-ray diffraction. Complex 1 is composed of two neutral [Cu(C2O4)(H2oxado)(H2O)] entities connected by Cu-O bonds between oxalate oxygen atoms and copper(II) ions, thereby producing a centrosymmetric dimer, with the Cu(II) centers exhibiting a strongly distorted octahedral coordination. Neighboring dimers are hydrogen-bonded through O- H···O interactions leading overall to a layer structure. Thermal analyses of complex 1 showed two significant weight losses corresponding to the coordinated water molecules, followed by the decomposition of the network. Variable-temperature (10 - 300 K) magnetic susceptibility measurements revealed very weak antiferromagnetic interactions (θ = 0:86 K from Curie-Weiss law behavior) within the dinuclear unit
Graphical Abstract
A Dimeric Copper(II) Complex of Oxalate and Oxamide Dioxime Ligands: Synthesis, Crystal Structure, Thermal Stability, and Magnetic Properties
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Artikel in diesem Heft
- Structural Diversity of Hydrogen-Bonded Networks of [Co(NH3)6]3+ Complex Cations and Acetylenedicarboxylic Acid Anions
- Different Structural Models of YB2C2 and GdB2C2 on the Basis of Single-Crystal X-Ray Data
- An Alternative Crystal Structure of Yb26B12O57 – X-Ray Structure Determination on Flux-synthesized Single Crystals
- Assembly of Zn(II) Coordination Polymers Based on Tetrachloroterephthalate and Dipyridyl-type Ligands
- The Silicides YT2Si2 (T =Co, Ni, Cu, Ru, Rh, Pd): A Systematic Study by 89Y Solid-state NMR Spectroscopy
- Mechanothermal Synthesis of SrSnO3
- A Dimeric Copper(II) Complex of Oxalate and Oxamide Dioxime Ligands: Synthesis, Crystal Structure, Thermal Stability, and Magnetic Properties
- Dicationic Methyl Complexes of the Rare-Earth Elements
- Orthoamide und Iminiumsalze, LXXXIII [1]. Die Synthese von starken Formylierungsmitteln im präparativen Großmaßstab: Triformamid (Triformylamin) / Orthoamides and Iminium Salts LXXXIII [1]. The Synthesis of Strong Formylating Reagents on Large Preparative Scale: Triformamide (Triformylamine)
- Synthesis and Reactions of New Chiral Linear Carboxamides with an Incorporated Peptide Linkage Using Nalidixic Acid and Amino Acids as Starting Materials
- Sesquiterpenoids and Diterpenes from Chamaecyparis obtusa var. breviramea f. crippsii
- The New Ternary Silicide ErCo3Si2
- Crystal Structure and NMR Study of Tetrakis(acetonitrile)silver(I) Fluorosulfonate [Ag(CH3CN)4]+[SO3F]–
- Convenient Synthesis and Molecular Structure of PPN[RhCl2(CO)2] (PPN+ = Bis(triphenylphosphane)iminium)
