Influence of Interactions in Solutions on the Solid Phase Formation in Ternary Water-Salt Systems

Skripkin, M. Yu.; Chernykh, L. V.; Pestova, O. N.; Baranauskaite, Valeriia; Burkov, K. A.; Zamyatin, I. V.; Stepakova, L. V.; Gusev, I. M.; Gorbunov, A. O.; Bogachev, N. A.; Старова, Галина Л.

doi:10.1134/s1070363219060033

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“…As for copper–oxygen bond strengths, the results are rather similar to those for another complex with oxygen-donor ligands [ 26 ]. It should be mentioned that no obvious effect of outer-sphere cations on metal–ligand bond strengths is observed in o -phthalatocuprates, in contrast to that found in halide complexes [ 26 , 27 ]. The polymeric structure of complexes and large size of ligands leads to the smoothing of the effect of polarization ability of outer-sphere ions.…”

Section: Resultsmentioning

confidence: 99%

Structures, Bonding and Sensor Properties of Some Alkaline o-Phthalatocuprates

et al. 2021

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Comprehensive study of the structure and bonding of disodium, dipotassium and diammonium di-o-phthalatocuprates(II) dihydrates has been undertaken. The crystal structure of ammonium o-phthalatocuprate has been determined. The identity of structures of phthalatocuprate chains in potassium and ammonium salts has been revealed. Vibrational spectra of all three compounds have been recorded, and the assignment of vibrational bands has been made. Force field calculations have shown a minor effect of outer-sphere cations (Na+, K+, NH4+) on both intraligand (C-O) and metal–ligand bond strengths. Synthesized compounds have been tested as electrochemical sensors on D-glucose, dopamine and paracetamol. Their sensitivity to analytes varied in the order of Na+ > K+ > NH4+. This effect has been explained by the more pronounced steric hindrance of copper ions in potassium and ammonium salts.

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Section: Resultsmentioning

confidence: 99%