Variation in the coordination mode of arenedisulfonates to copper(II): synthesis and structural characterization of six copper(II) arenedisulfonate complexes

Synthesis, thermal, spectroscopic and structural properties of di(aqua)bis(N, N′-dimethylethylenediamine-κ 2 N, N′)copper(II) acesulfamate

“…The Cu(II) ion is coordinated by four N atoms of the N,N 0 -dimethylethylenediamine-j 2 N,N 0 ligands and two O atoms from the water molecules. The same complex cation was also observed in naphtahalene disulfonate copper complex of dimethylethylenediamine [29]. In both compounds, the copper cation has a similar environment with almost the same geometric parameters.…”

Copper(II) Complexes of Schiff‐Base and Reduced Schiff‐Base Ligands: Influence of Weakly Coordinating Sulfonate Groups on the Structure and Oxidation of 3,5‐DTBC

“…The frequencies characteristic of the S-O stretching modes are observed in the range 1000-1380 cm -1 . [14] The electronic spectra of 1 and 3 in water display weak bands at 678 and 688 nm followed by intense bands at 367 and 322 nm respectively. The high intensity can be attributed to the delocalization of charge in the conjugated Schiff base.…”

A New One-Dimensional Double Chains Cobalt Coordination Polymer With Taurine Schiff-Base and 4,4′-Bipyridine Ligands: Synthesis, Spectral, Thermal Properties, and Crystal Structure

“…The IR absorption at 1254 cm −1 is attributed to the asymmetric stretching vibration of phenolic hydroxy. The absorptions at 1281, 1198, 1173, and 1021 cm −1 in the region 1000-1380 cm −1 are typical for the sulfonate groups, [28] and the strong absorptions at about 629 cm −1 can be assigned to the S-O stretching vibrations with coordination to Co(II) ion through oxygen atom and is similar to those observed in sulfonate. [29] It exhibits characteristic absorption at 1515, 1414, and 822 cm −1 due to ν (C N) , ν (C C) pyridine rings attributed to the coordinated 4,4 -bipyridine ligand.…”