Conformational dynamics of an alanine dipeptide analog : An ab initio molecular dynamics study

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DOIResolve DOI: http://doi.org/10.1103/PhysRevE.64.011907
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TypeArticle
Journal titlePhysical Review E : statistical, nonlinear and soft matter physics
Volume64
Issue1
Pages011907–; # of pages: 4
AbstractAn ab initio molecular dynamics (MD) simulation technique employing the Born-Oppenheimer approach in the framework of a Gaussian implementation of Kohn-Sham density functional theory is used to study the gas-phase conformational dynamics of an alanine dipeptide analog. It is found that conformational transformation between C5 and C7eq occurs on the picosecond time scale. Classical MD simulations using most of the popular force fields do not yield a transition even after nanoseconds. An analysis is given of the difference, for this small gas-phase system, between ab initio MD and traditional MD simulation using force fields.
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NPARC number12328259
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Record identifierbbe79f54-a3f1-481c-891a-1266fe863cb4
Record created2009-09-10
Record modified2016-05-09
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