Christian Methfessel, MSc.

Christian Methfessel, MSc.


Ph.D. Student




Bachelor Thesis

tetramesityl substituted [5]cumuleneSynthesis of a tetramesityl substituted [5]cumulene

Master Thesis

Water-Souble Phthalocyanines with Unsymmetrical Dendritic FunctionalizationWater-Souble Phthalocyanines with Unsymmetrical Dendritic Functionalization

Research area

Synthesis of a linearly linked Porphyrin-Perylene-Diad as a bolaamphiphilic charge-transfer-lipid


1)J. A. Januszewski, D. Wendinger, C. D. Methfessel, F. Hampel, R. R. Tykwinski Synthesis and Structure of Tetraarylcumulenes: Characterization of Bond-Length Alternation versus Molecule LengthAngewandte Chemie International Edition 2013, 52, 1817-1821

Cover Picture Angewandte ChemieBLA=0? Not so fast! A series of tetraarylcumulenes up to the length of a [9]cumulene has been synthesized and analyzed by X-ray crystallography. The structural data show a distinct reduction in bond-length alternation (BLA) as a function of molecule length, but this trend appears to reach a limit before a cumulenic structure with BLA=0 is achieved.


(Cover Picture, german version: Angewandte Chemie 2013, 125, 1862-1867)