Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Density of states for a short overlapping-bead polymer: Clues to a mechanism for helix formation?

Magee, James E. and Lue, Leo and Curtis, Robin A. (2008) Density of states for a short overlapping-bead polymer: Clues to a mechanism for helix formation? Physical Review E, 78 (3). 031803. ISSN 1539-3755

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

The densities of states are evaluated for very short chain molecules made up of overlapping monomers, using a model which has previously been shown to produce helical structure. The results of numerical calculations are presented for tetramers and pentamers. We show that these models demonstrate behaviors relevant to the behaviors seen in longer, helix-forming chains, particularly "magic numbers" of the overlap parameter, where the derivatives of the densities of states change discontinuously, and a region of bimodal energy probability distributions, reminiscent of a first-order phase transition in a bulk system.

Item type: Article
ID code: 27975
Keywords: electronic density of states, macromolecules, molecular biophysics, molecular configurations, polymers, polymorphic transformations, Physical and theoretical chemistry, Physics, Statistical and Nonlinear Physics, Statistics and Probability, Condensed Matter Physics
Subjects: Science > Chemistry > Physical and theoretical chemistry
Science > Physics
Department: Faculty of Engineering > Chemical and Process Engineering
Related URLs:
    Depositing user: Dr Leo Lue
    Date Deposited: 13 Oct 2010 15:21
    Last modified: 05 Sep 2014 05:09
    URI: http://strathprints.strath.ac.uk/id/eprint/27975

    Actions (login required)

    View Item