Structure of an aqueous poly(ethylene oxide) LiI solution from X-ray scattering

Wide-angle X-ray scattering is used to study the structure of lithium iodide in a mixed solvent of D 2O and deuterated poly(ethyleneoxide) (DPEO) at 25 °C. The local structure is extracted from the measured structure function, including C–C and C–O bond lengths, C–C–O and C–O–C geometry, and Li +…O,...

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Bibliographic Details
Published in:Journal of molecular liquids 2007-11, Vol.136 (1), p.79-82
Main Author: Habenschuss, A.
Format: Article
Language:English
Subjects:
BOND LENGTHS
GEOMETRY
LiI/D 2O/DPEO
LiI/D2O/DPEO
LITHIUM IODIDES
Mixed solvent
MIXED SOLVENTS
Molecular structure
NEUTRONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
SCATTERING
STRUCTURE FUNCTIONS
X-ray diffraction
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Summary:Wide-angle X-ray scattering is used to study the structure of lithium iodide in a mixed solvent of D 2O and deuterated poly(ethyleneoxide) (DPEO) at 25 °C. The local structure is extracted from the measured structure function, including C–C and C–O bond lengths, C–C–O and C–O–C geometry, and Li +…O, D 2O…D 2O, and I −…D 2O correlations. The results are compared to a recent neutron scattering study on the same solution, with good agreement found with those results. Some of the findings such as the I −…D 2O correlations are complementary to the neutron measurements.
ISSN:0167-7322
1873-3166
DOI:10.1016/j.molliq.2007.01.007