Angewandte Chemie International Edition

Cover image for Vol. 55 Issue 22

Editor: Peter Gölitz, Deputy Editors: Neville Compton, Haymo Ross

Online ISSN: 1521-3773

Associated Title(s): Angewandte Chemie, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemistryOpen, ChemPlusChem, Zeitschrift für Chemie

Cover Picture (Angew. Chem. Int. Ed. Engl. 7/1993)

32_07/1993The cover picture shows a computer-generated ball-and-stick model of tetrakis(tri-tert-butylsilyl)-tetrahedro-tetrasilane, the first molecular silicon compound containing a Si4 tetrahedron (in magenta). After the Ge6 prismanes and Sib8 and Sn8 cubanes, this tetrasilatetrahedrane is another milestone in the synthesis of highly symmetric, strained polycycles exclusively constructed from the higher homologues of carbon. It reemphasizes that unusual molecular frameworks can be stabilized by bulky substituents. More on the synthesis, which has most probably been and still will be attempted in many research groups, and the properties of this compound is reported by N. Wiberg et al. on p. 1054 ff.

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