Table 14A.1 Interactions in macromolecules Interaction Potential energy Comment Bond stretching Vstretah (R) = } k, stretch(R – R? R, is the equilibrium bond length; ki stretch is the force constant Bond bending Voana() = 1 Kibana(0 – O,J? O, is the equilibrium bond angle; kibend is the force constant Vrorsion (o, y) = A(1 + cos 30) + B(1 + cos 3w) See Fig. 11; A and Bare constants of the order of 1 kJ mol-1 Bond torsion Partial charges Vcoulomb (r) = 4πει e is the permittivity of the medium C* C A Lennard-Jones (12,6) interaction (Topic 10B) Dispersion and repulsive interactions r12 ,6 D* V-bonding (r) – 12 Alternative to partial-charge interaction Hydrogen bonding r10

Table 14A.1 Interactions in macromolecules Interaction Potential energy Comment Bond stretching Vstretah (R) = } k, stretch(R – R? R, is the equilibrium bond length; ki stretch is the force constant Bond bending Voana() = 1 Kibana(0 – O,J? O, is the equilibrium bond angle; kibend is the force constant Vrorsion (o, y) = A(1 + cos 30) + B(1 + cos 3w) See Fig. 11; A and Bare constants of the order of 1 kJ mol-1 Bond torsion Partial charges Vcoulomb (r) = 4πει e is the permittivity of the medium C* C A Lennard-Jones (12,6) interaction (Topic 10B) Dispersion and repulsive interactions r12 ,6 D* V-bonding (r) – 12 Alternative to partial-charge interaction Hydrogen bonding r10

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter12: The Solid State

Section12.6: Phase Changes

Problem 2.1ACP

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