Peri-Alkylated Terrylenes and Ternaphthalenes Building-Blocks Towards Multi-Edge Nanographenes**

Vikas Sharma, Hassan Khan, Michael Walker, Hamid Ahmad, Anmol Thanai, Tomasz Marszalek, Dieter Schollmeyer, Martin Baumgarten, Emrys W. Evans, Ashok Keerthi

Research output: Contribution to journalArticlepeer-review


Since its first synthesis by Clar in 1948, terrylene – a fully connected ternaphthalene oligomer via naphthalene's peri-positions – has gained special focus within the rylene family, drawing interest for its unique chemical, structural, optoelectronic and single photon emission properties. In this study, we introduce a novel synthetic pathway that enhances the solubility of terrylene derivatives through complete peri-alkylation, while also facilitating extensions at the bay-positions. This approach not only broadens the scope of terrylene's chemical versatility but also opens new avenues for developing solution processable novel multi-edge nanographenes and tailoring electronic energy levels through topological edge structures. Our findings include a comprehensive structural and spectroscopic characterization along with transient absorption spectroscopy and photophysics of both the synthesized peri-alkylated terrylene and its phenylene-fused derivative.

Original languageEnglish
JournalChemistry - A European Journal
Publication statusAccepted/In press - 2024


  • Bay-extension of Terrylene
  • Multi-edge Nanographenes
  • Peri-alkylation of Rylene
  • Terrylene
  • Transient Absorption Spectroscopy


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