TY  - JOUR
AU  - Rezaie Ghaleh, Nasrollah
TI  - Water Dynamics in Highly Concentrated Salt Solutions: A Multi‐Nuclear NMR Approach
JO  - ChemistryOpen
VL  - 11
IS  - 6
SN  - 2191-1355
CY  - Weinheim
PB  - Wiley-VCH-Verl.
M1  - FZJ-2022-05898
SP  - e202200080
PY  - 2022
AB  - Living cells often contain compartments with high concentration of charged biomolecules. A key question pertinent to the function of biomolecules is how water dynamics are affected by interaction with charged molecules. Here, we study the dynamical behavior of water in an extreme condition, that is, in saturated salt solutions, where nearly all water molecules are located within the first hydration layer of ions. To facilitate disentangling the effects of cations and anions, our study is focused on alkali chloride solutions. Following a multi-nuclear NMR approach enabling direct monitoring of protons and the quadrupolar nuclei 7Li, 17O, 23Na, 35Cl, 87Rb and 133Cs, we investigate how the translational and rotational mobility of water molecules, chloride anion and corresponding cations are affected within the constrained environment of saturated solutions. Our results indicate that water molecules preserve a large level of mobility within saturated alkali chloride solutions that is significantly independent of adjacent ions.
LB  - PUB:(DE-HGF)16
C6  - 35642137
UR  - <Go to ISI:>//WOS:000803753400001
DO  - DOI:10.1002/open.202200080
UR  - https://juser.fz-juelich.de/record/916052
ER  -