We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
Published online by Cambridge University Press: 21 July 2022
This chapter introduces the interactions between particles, a key input to the computer simulations described later in the book. Molecular level and fully atomistic interactions are described, having in mind particles forming liquid crystals phases. The empirical level models discussed comprise purely repulsive hard anisotropic particles (ellipsoids, spherocylinders) and attractive-repulsive (uniaxial and biaxial Gay–Berne type) ones. Expressions for electrostatic interactions and in particular charge, dipole and quadrupole ones are derived and typical values for some common mesogens provided. Dispersion interactions, molecular polarizability and chiral interactions are then introduced via quantum mechanical perturbation theory. Since liquid crystals are also formed by colloidal suspensions, dispersive interactions and Hamaker constants are briefly discussed, as well as model potentials for water useful for lyotropic systems, micelles and membranes.
To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.
