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Marco Haeser, Karlsruhe
Theoretische Chemie 1996
Nach. Chem. Tech. Lab., 1997, 45, 185.

Werner Uhl, Oldenburg, and Alfred Schmidpeter, Muenchen
Anorganische Chemie 1996
Nach. Chem. Tech. Lab., 1997, 45, 120.

Collaborative studies are highlighted that have been carried out by the groups of Glaser and Gruetzmacher to address the question as to the stabilization of carbenium ions by multiple substitution bu O, S, Se, and Te donors. The content is discussed of the following papers:

"Tris(chalogeno)carbenium-Ionen C(XR)3+ (X = O, S, Se, Te):
Ein experimenteller und quantenmechanischer Vergleich."
Dietmar Ohlmann, Christina M. Marchand, Hansjoerg Gruetzmacher*, Grace Shiahuy Chen, David Farmer, Rainer Glaser*, Antonio Currao, Reinhard Nesper and Hans Pritzkow
Angew. Chem. 1996, 108, 317-319. Angew. Chem. Int. Ed. Engl. 1996, 35, 300-303.

"Inductive and Conjugative S->C Polarizations in "Trithiocarbenium Ions" [C(SH)3]+ and [C(SH)3].,2+. Potential Energy Surface Analysis, Electronic Structure Motif and Spin Density Distribution."
Rainer Glaser*, Godwin Sik-Cheung Choy, Grace Shiahuy Chen, and Hansjoerg Gruetzmacher*
J. Am. Chem. Soc. 1996, 118, 11617-11628.