2011
DOI: 10.1063/1.3589164
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Transport and dynamic properties of O2+(X2Πg) in Kr under the action of an electrostatic field: Single or multiple potential energy surface treatment

Abstract: Ion transport and dynamic properties are calculated through molecular dynamics simulation of the motion of O(2)(+) in Kr under the action of an electrostatic field. The two lower potential energy surfaces X̃(2)A(") and Ã(2)A(') are considered for the interaction of the Π ground state of the ion with a closed shell noble gas. First, we study the reproduction of experimental mobility data through the use of single and multiple potential energy surfaces and establish the contribution of both lower energy states t… Show more

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Cited by 5 publications
(4 citation statements)
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References 48 publications
(44 reference statements)
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“…Diffusion components can be calculated as time integrals of the velocity correlation functions, C ii = ⟨( v i (0) – ⟨ v i (0)⟩)­( v i ( t ) – ⟨ v i ( t )⟩)⟩, with i representing { x , y , z } directions, Because C XX = C YY , two independent diffusion components should appear, D ⊥ = ( D XX + D YY )/2 and D || = D ZZ . In addition, the MD simulation method can provide rates of the conformational change involving the folding of the peptide, as well as correlations between all the degrees of freedom.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…Diffusion components can be calculated as time integrals of the velocity correlation functions, C ii = ⟨( v i (0) – ⟨ v i (0)⟩)­( v i ( t ) – ⟨ v i ( t )⟩)⟩, with i representing { x , y , z } directions, Because C XX = C YY , two independent diffusion components should appear, D ⊥ = ( D XX + D YY )/2 and D || = D ZZ . In addition, the MD simulation method can provide rates of the conformational change involving the folding of the peptide, as well as correlations between all the degrees of freedom.…”
Section: Methodsmentioning
confidence: 99%
“…The performance of the method and the simplified structure model is examined through the reproduction of the ion mobility spectrometry data for a flexible designed peptide. The MD method has been used in the past mostly for the reproduction of the transport and dynamics of small ions in gases under the action of an electrostatic field. …”
Section: Introductionmentioning
confidence: 99%
“…One unique feature of a NESS is the nonzero but stationary flux driven by an external force, which characterizes the active transport process in the system. The response of a system to a strong external force is noticeable and the unidirectional drift velocity is easy to detect in both experiments [5][6][7][8] and simulations [9][10][11][12][13][14][15][16][17][18] . However, in most applications, the system usually works in a moderate condition, i.e., driven by a weak force, in which the drift motion is submerged in the intense thermal diffusion and thus difficult to detect.…”
Section: Introductionmentioning
confidence: 99%
“…Οι μέσες τιμές των κινητικών ενεργειών των ιόντων λόγω μεταφοράς, σε διευθύνσεις κάθετες και παράλληλες στη διεύθυνση του εφαρμοζόμενου πεδίου, εκφράζονται ως ενεργές θερμοκρασίες και δίνονται από τις ακόλουθες σχέσεις [92] , =…”
Section: κινητική ενέργεια των ιόντων και ενεργές θερμοκρασίεςunclassified