Anomalous 13C NMR chemical shifts of high-spin saddle shaped manganese(III) octaethyltetraphenylporphyrin complexes

Akira Ikezaki, Mikio Nakamura, Ru Jen Cheng

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NMR spectra of highly saddled Mn(III) porphyrinates such as Mn(OETPP)(CD3OD)2 + have been measured. The extraordinarily upfield shifted meso-13C signals, which reach as much as -492 ppm at 298 K, are ascribed to the dx2-y2-a2u, dxy-a1u, and dπ-3eg interactions, the former two of which occur only when the porphyrin ring is saddled.

Original languageEnglish
Pages (from-to)156-157
Number of pages2
JournalChemistry Letters
Issue number2
Publication statusPublished - 2006 Feb 5
Externally publishedYes


ASJC Scopus subject areas

  • Chemistry(all)

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