Molecular kinetics of solid and liquid CHCl3

被引:5
作者
Caballero, Nirvana B. [1 ,2 ]
Zuriaga, Mariano [1 ,2 ]
Carignano, Marcelo A. [3 ]
Serra, Pablo [1 ,2 ,3 ]
机构
[1] Univ Nacl Cordoba, Fac Matemat Astron & Fis, RA-5000 Cordoba, Argentina
[2] IFEG CONICET, Cordoba, Argentina
[3] Qatar Environm & Energy Res Inst, Doha, Qatar
关键词
RELAXATION; CHLOROFORM; PRESSURE;
D O I
10.1016/j.cplett.2013.08.105
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We present a detailed analysis of the molecular kinetics of CHCl3 in a range of temperatures covering the solid and liquid phases. Using nuclear quadrupolar resonance we determine the relaxation times for the molecular rotations in solid at pre-melting conditions. Molecular dynamics simulations are used to characterize the rotational dynamics in the solid and liquid phases and to study the local structure of the liquid in terms of the molecular relative orientations. We find that in the pre-melting regime the molecules rotate about the C-H bond, but the rotations are isotropic in the liquid, even at supercooled conditions. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:69 / 73
页数:5
相关论文
共 20 条
[1]   RELAXATION BY SLOW MOTIONAL PROCESSES . EFFECT OF MOLECULAR ROTATIONS IN PURE QUADRUPOLE RESONANCE [J].
ALEXANDER, S ;
TZALMONA, A .
PHYSICAL REVIEW, 1965, 138 (3A) :A845-+
[2]   Canonical sampling through velocity rescaling [J].
Bussi, Giovanni ;
Donadio, Davide ;
Parrinello, Michele .
JOURNAL OF CHEMICAL PHYSICS, 2007, 126 (01)
[3]  
DIETZ W, 1984, BER BUNSEN PHYS CHEM, V88, P543
[4]   Polar symmetry in new high-pressure phases of chloroform and bromoform [J].
Dziubek, Kamil F. ;
Katrusiak, Andrzej .
JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (38) :12001-12009
[5]   GROMACS 4: Algorithms for highly efficient, load-balanced, and scalable molecular simulation [J].
Hess, Berk ;
Kutzner, Carsten ;
van der Spoel, David ;
Lindahl, Erik .
JOURNAL OF CHEMICAL THEORY AND COMPUTATION, 2008, 4 (03) :435-447
[6]   Solvation pressure in chloroform [J].
Hubel, H. ;
Faux, D. A. ;
Jones, R. B. ;
Dunstan, D. J. .
JOURNAL OF CHEMICAL PHYSICS, 2006, 124 (20)
[7]   RELATIVE PARTITION-COEFFICIENTS FOR ORGANIC SOLUTES FROM FLUID SIMULATIONS [J].
JORGENSEN, WL ;
BRIGGS, JM ;
CONTRERAS, ML .
JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (04) :1683-1686
[8]   Comparison of short-range-order in liquid- and rotator-phase states of a simple molecular liquid: A reverse Monte Carlo and molecular dynamics analysis of neutron diffraction data [J].
Pardo, Luis Carlos ;
Tamarit, Josep Lluis ;
Veglio, Nestor ;
Bermejo, Francisco Javier ;
Cuello, Gabriel Julio .
PHYSICAL REVIEW B, 2007, 76 (13)
[9]   Comparison of the atomic level structure of the plastic crystalline and liquid phases of CBr2Cl2: neutron diffraction and reverse Monte Carlo modelling [J].
Pothoczki, Szilvia ;
Temleitner, Laszlo ;
Carlos Pardo, Luis ;
Cuello, Gabriel Julio ;
Rovira-Esteva, Muriel ;
Lluis Tamarit, Josep .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2013, 25 (45)
[10]   Detailed intermolecular structure of molecular liquids containing slightly distorted tetrahedral molecules with C3v symmetry: Chloroform, bromoform, and methyl-iodide [J].
Pothoczki, Szilvia ;
Temleitner, Laszlo ;
Pusztai, Laszlo .
JOURNAL OF CHEMICAL PHYSICS, 2011, 134 (04)