Study of complex-formation of copper(II) with ampholytes containing nitrogen-phosphorus

Vishnevskaya, G. P.; Молочников, Л. С.; Safin, R. Sh.; Balakin, S. M.

doi:10.1016/0032-3950(82)90060-0

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“…Both heterogeneous and homogeneous membranes were studied as well as gel and macroporous sulfonate cation exchangers CU-2 and CU-23 and their foreign analogues. The ESR studies of Cu 2+ cations used as paramagnetic probes revealed two domains containing hydrated copper (II) complexes with different mobility [ 100 ]. The dependences of the correlation times and diffusion coefficients of water on the moisture content [ 44 , 45 ] were consistent with the assumption that the structure of transport channels in such ion exchangers is described by the model in Figure 1 , which is widely used for ionic transport in these ion-exchangers.…”

Section: Cation-exchange Membranes Structure Hydration Ionic and Molecular Mobilitymentioning

confidence: 99%

Molecular and Ionic Diffusion in Ion Exchange Membranes and Biological Systems (Cells and Proteins) Studied by NMR

et al. 2021

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The results of NMR, and especially pulsed field gradient NMR (PFG NMR) investigations, are summarized. Pulsed field gradient NMR technique makes it possible to investigate directly the partial self-diffusion processes in spatial scales from tenth micron to millimeters. Modern NMR spectrometer diffusive units enable to measure self-diffusion coefficients from 10−13 m2/sec to 10−8 m2/sec in different materials on 1 H, 2 H, 7 Li, 13 C, 19 F, 23 Na, 31 P, 133 Cs nuclei. PFG NMR became the method of choice for reveals of transport mechanism in polymeric electrolytes for lithium batteries and fuel cells. Second wide field of application this technique is the exchange processes and lateral diffusion in biological cells as well as molecular association of proteins. In this case a permeability, cell size, and associate lifetime could be estimated. The authors have presented the review of their research carried out in Karpov Institute of Physical Chemistry, Moscow, Russia; Institute of Problems of Chemical Physics RAS, Chernogolovka, Russia; Kazan Federal University, Kazan, Russia; Korea University, Seoul, South Korea; Yokohama National University, Yokohama, Japan. The results of water molecule and Li+, Na+, Cs+ cation self-diffusion in Nafion membranes and membranes based on sulfonated polystyrene, water (and water soluble) fullerene derivative permeability in RBC, casein molecule association have being discussed.

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Section: Cation-exchange Membranes Structure Hydration Ionic and Molecular Mobilitymentioning

confidence: 99%

Molecular and Ionic Diffusion in Ion Exchange Membranes and Biological Systems (Cells and Proteins) Studied by NMR

et al. 2021

View full text Add to dashboard Cite

show abstract

Study of complex-formation of copper(II) with ampholytes containing nitrogen-phosphorus

Cited by 1 publication

References 3 publications

Molecular and Ionic Diffusion in Ion Exchange Membranes and Biological Systems (Cells and Proteins) Studied by NMR

Molecular and Ionic Diffusion in Ion Exchange Membranes and Biological Systems (Cells and Proteins) Studied by NMR

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