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@ARTICLE{Till:943463,
author = {Till, Paul and Asakura, Ryo and Remhof, Arndt and Zeier,
Wolfgang G.},
title = {{O}n the {L}ocal {S}tructure in {O}rdered and {D}isordered
${C}loso$-hydroborate {S}olid {E}lectrolytes},
journal = {The journal of physical chemistry / C},
volume = {127},
number = {2},
issn = {1932-7447},
address = {Washington, DC},
publisher = {ACS Publications},
reportid = {FZJ-2023-01034},
pages = {987 - 993},
year = {2023},
note = {Unterstützt durch den DFG Grant: ZE 1010/6-1},
abstract = {Na+closo-hydroborates are a heavily researched solid
electrolyte class for applications in all-solid-state Na
batteries. The structural characterization of these
materials is notoriously challenging due to the elements
involved and the fast rotational motion of hydroborate
cages. The average structures obtained by Bragg diffraction
have numerous atomic positions with low occupancies,
complicating the determination of actual atom–atom
distances. Total average scattering and derived pair
distribution functions display atom–atom distances in real
space, providing additional structure information to the
average crystal structure. In this work, we present the pair
distribution functions of the five different
Na+closo-hydroborates: Na2B10H10, Na2B12H12, NaCB11H12, and
the mixtures of 1:1 Na2B12H12/Na2B10H10 and 2:1
NaCB11H12/Na2B12H12. All pair distribution functions show a
fast decay of peak height with increasing atom–atom
distance on the local scale, suggesting a low correlation of
atom motions between hydroborate cages, as observed in
various other molecular crystals. The combination of Bragg
diffraction, showing the average ordering of
closo-hydroborate cages, and pair distribution function
analysis, providing local atom–atom distances, is a useful
tool to develop a deeper understanding of the
closo-hydroborates and also of other plastic crystals.},
cin = {IEK-12},
ddc = {530},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {1221 - Fundamentals and Materials (POF4-122)},
pid = {G:(DE-HGF)POF4-1221},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000914860600001},
doi = {10.1021/acs.jpcc.2c07835},
url = {https://juser.fz-juelich.de/record/943463},
}