Go to content
UR Home

Configurational and conformational isomeric antiaromatic [28]tetraoxaporphyrinoids(4.2.4.2) and aromatic [26]tetraoxaporphyrin(4.2.4.2) dications. A new type of molecular dynamics in macrocyclic systems

Märkl, Gottfried ; Stiegler, J. ; Kreitmeier, Peter ; Burgemeister, Thomas ; Kastner, F. ; Dove, Stefan



Abstract

The [28]tetraoxaporphyrinoids(4.2.4.2) I are synthesized by cyclizing Wittig reaction. An alternative path is the McMurry condensation. Four different configurational isomers of I were isolated and characterized by 1H NMR. The inner and outer protons of the (E,E)-dienediyl bridges in (Z,EE,Z,EE)-I exchange by rotation around the adjacent single bonds. In (Z,EE,E,EE)-I, the (E)-ethenediyl ...

plus


Owner only: item control page
  1. Homepage UR

University Library

Publication Server

Contact:

Publishing: oa@ur.de

Dissertations: dissertationen@ur.de

Research data: daten@ur.de

Contact persons