title: [32]π Fused Core-Modified Heptaphyrin with Möbius Aromaticity.
abstract: A new fused core-modified 32π heptaphyrin with Möbius aromatic character is reported. The (1)H NMR data indicated a weak Möbius aromaticity at 298 K; however, at 213-183 K, the molecule predominates [4n]π Möbius conformation with strong diatropic ring current, which was further confirmed by X-ray analysis. The protonation experiment led to preservation of the Möbius aromaticity at 298 K. Nevertheless, the experimental results were further supported by theoretical studies. Overall, this study represents the first example of Möbius aromatic fused core-modified expanded porphyrin.
authors.affiliation: School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, 751005, Odisha, India.
authors.forename: Arindam
authors.initials: A
authors.lastname: Ghosh
authors.affiliation: School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, 751005, Odisha, India.
authors.forename: Arvind
authors.initials: A
authors.lastname: Chaudhary
authors.affiliation: School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, 751005, Odisha, India.
authors.forename: A
authors.initials: A
authors.lastname: Srinivasan
authors.affiliation: Inorganic & Theoretical Chemistry Section, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum -, 695019, Kerala, India.
authors.forename: Cherumuttathu H
authors.initials: CH
authors.lastname: Suresh
authors.affiliation: School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, 751005, Odisha, India. tkc@niser.ac.in.
authors.forename: Tavarekere K
authors.initials: TK
authors.lastname: Chandrashekar
keywords: Möbius aromaticity; aromaticity; core modification; porphyrinoids