TY - JOUR A1 - Kleinpeter, Erich A1 - Schulenburg, A. T1 - Quantification of the push-pull effect in substituted alkenes N2 - 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 Y1 - 2005 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/13710 SN - 0040-4039 ER -