Publications by authors named "Anvar Sh Mukhtarov"
EPR, NMR relaxation methods, and DFT calculations were jointly used to investigate the structural and dynamical characteristics of solvation shells of copper(II) complexes with iminodiacetic acid, glycylglycine, and glycyglycylglycine in comparison with the copper(II) bis-glycinate studied previously. A strong trans influence of deprotonated peptide nitrogen was revealed in EPR spectra parameters of copper(II) complexes with oligopeptides. With models of the experimental NMRD data and literature X-ray structural information, it was suggested that only one water molecule coordinates in axial position of copper(II) complexes with glycine and di- and triglycine (Cu(Gly)2, Cu(GGH(-1)), and Cu(GGGH(-2))(-)), and the copper ion in these complexes is pentacoordinated, while in the iminodiacetate complex, Cu(IDA), both apical positions can be occupied by solute molecules.
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- The study investigates the structural features and dynamics of copper(II) bis-complexes with various amino acids using EPR and NMR relaxation methods.
- It was found that the presence of salt tends to favor the creation of the cis isomer of these complexes, and only one water molecule is coordinated axially.
- The exchange rates of water molecules in the second coordination sphere were influenced by side chain groups of ligands, with very short water lifetimes explained by structural cavities drawing in water quickly.