Crystal structure and magnetic properties of [Cu(ox)(py)₂](py = pyridine): a ferromagnetic oxalate-bridged zigzag chain complex

A two-dimensional copper(I) polymer containing both molecular rod and anionic bridges: synthesis and crystal structure of (µ-chloro)-(µ-pyrazine)copper(I)

“…In this process, the glycine derivative might act as reduction agent, since, as we have previously shown, the 2,6-dimethylphenylglycinato can be easily oxidized to oxalato anion in the presence of Cu(I1) (20). Nevertheless, because of reduction of Cu(I1) in the presence of 2,3-dimethylpyrazine has been reported (18), a possible mechanism in which the pyrazine derivative acts as reduction agent cannot be disregarded.…”

“…Microanalyses of C, N, and H, and measurements of electronic and infrared spectra were canied out as already reported (20).…”

A Novel Salt Formed by Mixed-Valence Vanadium(IV, V) [(VO)2O(bpy)2(C2O4)2] Anions and Ferromagnetic [Cu2(bpy)4(C2O4)] Cations: Structure, Spectroscopic Characterization and Magnetic Properties

“…The largest interaction is observed for the so-called coplanar arrangement 1a, [33] intermediate interactions are measured in the case of the perpendicular geometry 1b, [34] and finally rare cases of ferromagnetic interactions are observed for the parallel geometry 1c. [34,35] All these behaviours have recently been rationalized by theoretical DFT calculations. [36] …”

One‐Dimensional Oxalato‐Bridged Metal(II) Complexes with 4‐Amino‐1,2,4‐triazole as Apical Ligand

“…The difference of the Cu-O bond lengths (0.31 Å) involving the bis(bidentate) oxalato ligand is similar to those observed in other six-coordinate copper() complexes based on asymmetrically coordinated oxalato bridges. [14][15][16] The atoms involved in the four short bonds (O1, O1a, N11, N11a) define the equatorial plane of the MO 4 N 2 chromophore that forms a dihedral angle of 83.5°with the oxalato bridging ligand. .…”