@article{KleinpeterSchulenburg2005,
  author    = {Kleinpeter, Erich and Schulenburg, A.},
  title     = {Quantification of the push-pull effect in substituted alkenes},
  issn      = {0040-4039},
  year      = {2005},
  abstract  = {The quotient of the occupation numbers of pi bonding and pi* antibonding orbitals of the central C=C partial double bond, pi*(C=C)/pi(C=C), proved to be a useful parameter to quantify the push-pull effect completely for the first time in substituted alkenes by examination of a comprehensive set of compounds. (c) 2005 Elsevier Ltd. All rights reserved},
  language  = {en}
}