Journal article Open Access

Probing spatial locality in ionic liquids with the grand canonical adaptive resolution molecular dynamics technique

L. Delle Site; R. Klein; C. Krekeler; B. Shadrack Jabes


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    <subfield code="a">Probing spatial locality in ionic liquids with the grand canonical adaptive resolution molecular dynamics technique</subfield>
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    <subfield code="a">&lt;p&gt;We employ the Grand Canonical Adaptive Resolution Simulation (GC-AdResS) molecular dynamics technique to test the spatial locality of the 1-ethyl 3-methyl imidazolium chloride liquid. In GC-AdResS, atomistic details are kept only in an open sub-region of the system while the environment is treated at coarse-grained level; thus, if spatial quantities calculated in such a sub-region agree with the equivalent quantities calculated in a full atomistic simulation, then the atomistic degrees of freedom outside the sub-region play a negligible role. The size of the sub-region fixes the degree of spatial locality of a certain quantity. We show that even for sub-regions whose radius corresponds to the size of a few molecules, spatial properties are reasonably reproduced thus suggesting a higher degree of spatial locality, a hypothesis put forward also by other researchers and that seems to play an important role for the characterization of fundamental properties of a large class of ionic liquids.&lt;/p&gt;</subfield>
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