Synthesis and characterization of a novel asymmetric fused ladder oligomer for applications as organic semiconductor

Cameron Fiester, Phuong Truc T. Pham, Amy Bradley, Amjad Nazzal, Mamoun M. Bader

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We report herein the two step synthesis of asymmetrically substituted fused heterocyclic ladder oligomer, 11-nitrobenzo[a][1,4]benzothiazino[3,-c]phenoxazine (2) and its single crystal structure. Compound 2 crystallizes in the orthorhombic space group Fdd2 with unit cell dimensions: a = 6.7497(9) Å; b = 52.478(7) Å; c = 18.832(3) Å and α = β = γ = 90°. Each unit cell contains 16 molecules. π–π Stack distances of 3.9 and 3.39 Å and short contacts of N–O…H–C distance of 2.43 Å were observed within the unit cell. Furthermore, its optical band gap was estimated be 1.85 eV. These materials are of interest for variety of applications due to their unique optical and electrical properties. Graphical abstract: [Figure not available: see fulltext.].

Original languageEnglish (US)
Pages (from-to)889-893
Number of pages5
JournalMRS Advances
Issue number16
StatePublished - Nov 2023

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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