Prof Karel Von Eschwege
Associate Professor
2 27
IB 48
051 4012923
Chemistry Building 104

Short CV

-   Private business prior to 2002.
-   PhD in Physical Chemistry (2006) - PhD Bruker Prize
-   Research photo- and electro-active chemical species, employing

  •     synthetic
  •     electrochemical
  •     quantum computational
  •     X-ray crystallographic and 
  •     a variety of spectrophotometry techniques
  •     including ultra-fast laser spectroscopy

-   Private and National Research Foundation rated scientist grant holder
-   Lecture CHEM2633, CHEM3713, CHEM6873 and CHEM6883 courses.

-   Lecture widely on the utilization and storage of solar energy as renewable source.




Selected Publications


A DFT Perspective on the Structures and Electronic Spectra of the Orange and Blue Isomers of Photochromic Dithizonatophenylmercury(II)

         Von Eschwege, K. G.; Conradie, J.; Swarts, J. C.

         J. Phys. Chem. A, 112 (11), 2211-2218, 2008

Chemical and electrochemical oxidation and reduction of dithizone

         Von Eschwege, K. G.; Swarts, J. C.

         Polyhedron, 29, 1727-1733, 2010

Ultrafast Photochemistry of Dithizonatophenylmercury(II)

         Schwoerer, H.; Von Eschwege, K. G.; Bosman, G.; Krok, P.; Conradie, J.

         ChemPhysChem, 2653-2658, 2011

Electrochemical and DFT-modeled reduction of Enolized 1,3-Diketones

         Kuhn, A.; Von Eschwege, K. G.; Conradie, J.

         Electrochimica Acta, 56, 6211– 6218, 2011

Electrochemistry and spectro-electrochemistry of dithizonatophenylmercury(II)

         Von Eschwege, K. G.; Van As, L.; Swarts, J. C.

         Electrochimica Acta, 56(27), 10064-10068, 2011

Redox Potentials of Ligands and Complexes – a DFT Approach

         Von Eschwege, K. G.; Conradie, J.

         SA Journal of Chemistry, 64, 203–209, 2011

Dithizone and its Oxidation Products – a DFT, Spectroscopic and X-Ray Structural Study

         Von Eschwege, K. G.; Conradie, J.; Kuhn, A.

         J. Phys. Chem. A, 115, 14637-14646, 2011

Reduction potentials of para-substituted nitrobenzenes - a theoretical approach

         Kuhn, A.; Von Eschwege, K. G.; Conradie, J.

         J. Phys. Org. Chem. 25, 58-68, 2012

Oxidation resilient dithizones - synthesis, cyclic voltammetry and DFT perspectives

         Von Eschwege, K. G.

         Polyhedron, 39, 99–105, 2012

Synthesis and kinetics of electronically altered photochromic dithizonatophenylmercury(II) complexes

         Von Eschwege, K. G.

         J. Photochem & Photobiol., 252, 159-166, 2013

Intramolecular interactions in a new tris-dithizonatocobalt(III) complex

         Von Eschwege, K. G.; Van As, L. Joubert, C. C.; Swarts, J. C.; Aquino, M. A. S.; Cameron, T. S.

         Electrochimica Acta, 112, 747–755, 2013

Femtosecond Laser Spectroscopy and DFT studies of Photochromic Dithizonatomercury Complexes

         Von Eschwege, K.G.; Bosman, G.; Conradie, J.; Schwoerer, H.

         J. Phys. Chem. A 2014, 118, 844-855

Synthesis and Kinetics of Sterically Altered Photochromic Dithizonatomercury Complexes

         Alabaraoye, Ernestine; Von Eschwege, K. G. and Loganathan, Nagarajan

         J. Phys. Chem. A, 2014

Synthesis and structure of dithizonato complexes of antimony(III), copper(II) and tin(IV)

         Trevor T. Chiweshe, Marilé Landman, Jeanet Conradie & Karel G. von Eschwege

         Journal of Coordination Chemistry, 2016, 69(5) 788–800

Electronic properties of Fe charge transfer complexes – A combined experimental and theoretical approach

         Hendrik Ferreira, Karel G. von Eschwege, Jeanet Conradie      

         Electrochimica Acta 216 (2016) 339–346

Electrochemical and DFT study of the reduction of substituted phenanthrolines

            Hendrik Ferreira, Marrigje M. Conradie, Karel G. von Eschwege, Jeanet Conradie

            Polyhedron 122 (2017) 147–154

Spectrophotometry Mole Ratio and Continuous Variation Experiments with Dithizone

            Lumanyano L. A. Ntoi;  Karel G. von Eschwege,

            African Journal of Chemical Education-AJCE 7(2) (2017) 59-92

Seven Chromisms associated with Dithizone

            Lumanyano L. A. Ntoi, Blenerhassied Buitendach, Karel G. von Eschwege

            Journal of Physical Chemistry A (2017) 121, 9243-9251

Iron Phenanthrolines:  A Density Functional Theory Study

            Karel G. von Eschwege;  Jeanet Conradie

            Inorganica Chimica Acta (2018) 471, 391–396


Publications (Short List)


Area(s) of Interest

Courses Presented

Community Service

Service Learning


Elfrieda van den Berg (Marketing Manager)
T: +27 51 401 2531


Dilahlwane Mohono (Faculty Officer)
T: +27 58 718 5284

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