Invariant energy partitions in chemical reactions and cluster dynamics simulations

被引:25
作者
Aquilanti, V
Novillo, EC
Garcia, E
Lombardi, A
Sevryuk, MB
Yurtsever, E
机构
[1] Univ Perugia, Dipartimento Chim, I-06123 Perugia, Italy
[2] Univ Basque Country, Fac Farm, Dept Quim Fis, Vitoria 01006, Spain
[3] Russian Acad Sci, Inst Energy Problems Chem Phys, Moscow 119334, Russia
[4] Koc Univ, Coll Arts & Sci, TR-34450 Istanbul, Turkey
关键词
hyperspherical coordinates; kinematic rotations; Lennard-Jones clusters; finite systems phase transitions; elementary reactions;
D O I
10.1016/j.commatsci.2004.11.008
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A separation of intra and intermolecular degrees of freedom, based on an invariant phase-space hyperangular momentum approach, is proposed as useful alternative to the usual roto-vibrational mode analysis. Two partitions (hyperspherical and projective) of the kinetic energy are here illustrated for simulations of chemical reactions and shown interesting to analyze caloric curves of clusters. Case studies are Ar-13 and Ar-38. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:187 / 191
页数:5
相关论文
共 9 条
[1]   Phase-space invariants as indicators of the critical behavior of nanoaggregates [J].
Aquilanti, V ;
Lombardi, A ;
Sevryuk, MB ;
Yurtsever, E .
PHYSICAL REVIEW LETTERS, 2004, 93 (11) :113402-1
[2]   Benchmark rate constants by the hyperquantization algorithm.: The F+H2 reaction for various potential energy surfaces:: features of the entrance channel and of the transition state, and low temperature reactivity [J].
Aquilanti, V ;
Cavalli, S ;
De Fazio, D ;
Volpi, A ;
Aguilar, A ;
Lucas, JM .
CHEMICAL PHYSICS, 2005, 308 (03) :237-253
[3]   Phase-space invariants for aggregates of particles: Hyperangular momenta and partitions of the classical kinetic energy [J].
Aquilanti, V ;
Lombardi, A ;
Sevryuk, MB .
JOURNAL OF CHEMICAL PHYSICS, 2004, 121 (12) :5579-5589
[4]   Global view of classical clusters: the hyperspherical approach to structure and dynamics [J].
Aquilanti, V ;
Lombardi, A ;
Yurtsever, E .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2002, 4 (20) :5040-5051
[5]   Reactivity enhanced by under-barrier tunneling and resonances:: the F+H2→HF+H reaction [J].
Aquilanti, V ;
Cavalli, S ;
De Fazio, D ;
Volpi, A ;
Aguilar, A ;
Giménez, X ;
Lucas, JM .
CHEMICAL PHYSICS LETTERS, 2003, 371 (3-4) :504-509
[6]   The double-funnel energy landscape of the 38-atom Lennard-Jones cluster [J].
Doye, JPK ;
Miller, MA ;
Wales, DJ .
JOURNAL OF CHEMICAL PHYSICS, 1999, 110 (14) :6896-6906
[7]   SOLID LIQUID-PHASE CHANGES IN SIMULATED ISOENERGETIC AR-13 [J].
JELLINEK, J ;
BECK, TL ;
BERRY, RS .
JOURNAL OF CHEMICAL PHYSICS, 1986, 84 (05) :2783-2794
[8]   Phase changes in 38-atom Lennard-Jones clusters. I. A parallel tempering study in the canonical ensemble [J].
Neirotti, JP ;
Calvo, F ;
Freeman, DL ;
Doll, JD .
JOURNAL OF CHEMICAL PHYSICS, 2000, 112 (23) :10340-10349
[9]   Phase transitions in clusters [J].
Schmidt, M ;
Haberland, H .
COMPTES RENDUS PHYSIQUE, 2002, 3 (03) :327-340