Intercorrelation of Electronic, Structural, and Morphological Properties in Nanorods of 2,3,9,10-Tetrafluoropentacene.

We evidence the intercorrelation of electronic, structural, and morphological properties in nanorods of a substituted fluorine-based pentacene, 2,3,9,10-tetrafluoropentacene, deposited on gold single crystals by using photoemission and X-ray absorption spectroscopy investigations. Our investigations show changes in the XPS spectroscopy lines, and NEXAFS features correlate with the specific structure of the assemblies and their morphology. Consequently, the chemical structure affects not only the molecular electronic structure and the way the molecules assemble in a film but also the film morphology leading to specific thin film electronic properties.

Anti-[2.2](1,4)pentacenophane: a covalently coupled pentacene dimer.

Two in a row: A pentacene dimer in which both units are covalently linked through a [2.2]paracyclophane bridge, has been synthesized. The electronic properties of the molecule were elucidated by a combination of experimental and computational methods.

Thermal generation of pentacenes from soluble 6,13-dihydro-6,13-ethenopentacene precursors by a Diels-Alder-retro-Diels-Alder sequence with 3,6-disubstituted tetrazines.

3,6-Substituted tetrazines 2 (a: R(2) = 2-pyridyl or b: CO(2)Me) react with 2,3,9,10-(R(1))(4)-dihydro-6,13-ethenopentacene 3 in solution at elevated temperature to the corresponding pentacene 1 (a: R(1) = H, b: OBn, c: F).