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Band structure of nonclassical polymers
Authors:Nikolai Tyutyulkov  Peter Schuster  Oskar Polansky
Affiliation:(1) Institute of Organic Chemistry, Academy of Sciences, 1113 Sofia, Bulgaria;(2) Institut für theoretische Chemie der Universität, A-1090 Wien, Austria;(3) Max-Planck Institut für Strahlenchemie, D-4330 Mülheim a.d.Ruhr, Federal Republic of Germany
Abstract:It is shown that fully conjugated alternant nonclassical polymers are comparatively stable systems as a result of the considerable delocalisation energy.The energy characteristics of the polymers are strongly determined by the electron spin distribution of the degenerate nonbonding molecular orbitals; the full spin configuration,S>0, is favoured. The spin densities depend on the electron correlation and alternate; this corresponds to a ferrimagnetic state of the polymer at 0°K.
Keywords:Nonclassical polymers  Band structure of   /content/j4331785m7373701/xxlarge8764.gif"   alt="  sim"   align="  MIDDLE"   BORDER="  0"  >  Ferrimagnetic state of   /content/j4331785m7373701/xxlarge8764.gif"   alt="  sim"   align="  MIDDLE"   BORDER="  0"  >
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