A dearomatization/aromatization strategy accesses the tetrahedral (crosslike) pentacene tetramer (tetrakis(4-((6,13-bis(TIPS-ethynyl)pentacen-2-yl)ethynyl)phenyl)silane). This molecular caltrop and one of its derivatives form amorphous thin films, demonstrating the impact of the 3D-tetramerization on the bulk morphology of the otherwise crystalline TIPS-pentacene.
F. L. Geyer, S. Schmid, V. Brosius, N. M. Bojanowski, G. Bollmann, K. Brödner and U. H. F. Bunz, Chem. Commun., 2016, 52, 5702 DOI: 10.1039/C6CC01029F
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