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Cover Picture: Angew. Chem. Int. Ed. 22/2002
Author(s) -
Manini Peter,
Amrein Walter,
Gramlich Volker,
Diederich François
Publication year - 2002
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20021115)41:22<4155::aid-anie4155>3.0.co;2-3
Subject(s) - cubane , fourier transform ion cyclotron resonance , fullerene , cover (algebra) , chemistry , ion , crystallography , stereochemistry , organic chemistry , crystal structure , engineering , mechanical engineering
The cover picture shows the first expanded cubane with a C 56 core. Formally derived by insertion of buta‐1,3‐diynediyl moieties into all 12 CC single bonds of octamethoxycubane, its synthesis actually proceeds by the formation of corners, edges, and faces as key building blocks and intermediates. The expanded cubane is highly strained and explodes upon scraping. Under conditions of Fourier‐transform ion‐cyclotron‐resonance mass spectrometry it rearranges into fullerenes, which, in the positive‐ion mode, undergo fullerene coalescence reactions. Full details are described by Diederich et al. on p. 4339 ff.