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RESEARCH PRODUCT
On-Surface Synthesis of Oligo(indenoindene)
Marco Di GiovannantonioJosé I. UrgelPascal RuffieuxAkimitsu NaritaAkimitsu NaritaQiang ChenCarlo A. PignedoliKlaus MüllenKlaus MüllenRoman FaselRoman Faselsubject
chemistry.chemical_classificationBand gapAtomic force microscopy530 PhysicsElectronic bandNanotechnologyGeneral ChemistryPolymerConjugated system010402 general chemistry01 natural sciencesBiochemistryCatalysis0104 chemical scienceslaw.inventionColloid and Surface Chemistrychemistrylaw540 ChemistryDensity functional theoryScanning tunneling microscopeSpectroscopydescription
Fully conjugated ladder polymers (CLP) possess unique optical and electronic properties, and are considered promis-ing materials for applications in (opto)electronic devices. Poly(indenoindene) is a CLP consisting of an alternating array of five- and six-membered rings, which has remained elusive so far. Here, we report an on-surface synthesis of oligo(indenoindene) on Au(111). Its structure and a low elec-tronic bandgap have been elucidated by low-temperature scanning tunneling microscopy and spectroscopy and non-contact atomic force microscopy, complemented by density functional theory calculations. Achieving defect-free seg-ments of oligo(indenoindene) offers an exclusive insight into this CLP and provides the basis to further synthetic approaches.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-07-14 |