Physics – Biological Physics
Scientific paper
2002-04-17
J. Phys.:Condensed Matter 15, 291 (2003)
Physics
Biological Physics
28 pages, 9 figures
Scientific paper
10.1088/0953-8984/15/2/329
We present the results of the modeling of proton translocation in finite H-bonded chains in the framework of two-stage proton transport model. We explore the influence of reorientation motion of protons, as well as the effect of electric field and proton correlations on system dynamics. An increase of the reorientation energy results in the transition of proton charge from the surrounding to the inner water molecules in the chain. Proton migration along the chain in an external electric field has a step-like character, proceeding with the occurrence of electric field threshold-type effects and drastic redistribution of proton charge. Electric field applied to correlated chains induces first a formation of ordered dipole structures for lower field strength, and than, with a further field strength increase, a stabilization of states with Bjerrum D-defects. We analyze the main factors responsible for the formation/annihilation of Bjerrum defects showing the strong influence of the complex interplay between reorientation energy, electric field and temperature in the dynamics of proton wire.
Pavlenko Natalie
No associations
LandOfFree
Proton Wires in an Electric Field: the Impact of Grotthuss Mechanism on Charge Translocation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Proton Wires in an Electric Field: the Impact of Grotthuss Mechanism on Charge Translocation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proton Wires in an Electric Field: the Impact of Grotthuss Mechanism on Charge Translocation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-304831