T-Symmetrical Icosahedra: A New Type of Chirality in Metal Complexes Metal Binding of Polyalcohols, Part 7. This work was supported by the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie. We thank Prof. Dr. E.-U. Gekeler (Saarbrücken), Prof. Dr. W. S. Sheldrick (Bochum), Dr. P. Osvath (Melbourne), and G. W. Hart (Northport, NY; http://www.georgehart.com) for helpful advice and discussion. Part

Abstract

In the Communication of K. Hegetschweiler and co-workers in Issue 22, pp. 4179–4182, two important relevant papers were not quoted, for which the authors apologize: R. Schwesinger, K. Piontek, W. Littke, O. Schweikert, H. Prinzbach, C. Krüger, Y.-H. Tsay, Tetrahedron Lett. 1982, 23, 2427–2430; b) R. Schwesinger, K. Piontek, W. Littke, H. Prinzbach, Angew. Chem. Int. Ed. Engl. 1985, 24, 318–319. The authors apologize for this omission. In particular, ref. a describes complex formation of Ba2+ with cis-benzenetrioxide, a tridentate, tripodal oxygen donor. The resulting complex has icosahedral structures with approximate T symmetry, analogous to the complex described by Hegetschweiler and co-workers. Unfortunately, crystallographic data of this Ba complex are not available in the database of the Cambridge Crystallographic Data Centre. The authors thank Professor Prinzbach, Freiburg, for his advice.