Evaluation of planarity and aromaticity in sapphyrin and inverted sapphyrin using a bidirectional NICS (Nucleus-Independent Chemical Shift) scan method

Zin Seok Yoon, Su Bum Noh, Dong Gyu Cho, Jonathan L. Sessler, Dongho Kim

Research output: Contribution to journalArticle

11 Citations (Scopus)


Using the bidirectional NICS scan method in conjunction with two-photon absorption (TPA) measurements, it has proved possible to determine the relationship between π-conjugation and aromaticity in two structurally related expanded porphyrin systems, sapphyrin and inverted sapphyrin, and establish that differences in these defining factors depend on the presence or absence of a key sp3 hybrid molecular orbital within the macrocyclic periphery.

Original languageEnglish
Pages (from-to)2378-2380
Number of pages3
JournalChemical Communications
Issue number23
Publication statusPublished - 2007 Jun 14


All Science Journal Classification (ASJC) codes

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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