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

Akira Ikezaki; Mikio Nakamura; Ru Jen Cheng

doi:10.1246/cl.2006.156

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

Akira Ikezaki, Mikio Nakamura, Ru Jen Cheng

研究成果: Article › 査読

7 被引用数 (Scopus)

抄録

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 d_x2-y2-a_2u, d_xy-a_1u, and d_π-3e_g interactions, the former two of which occur only when the porphyrin ring is saddled.

本文言語	English
ページ（範囲）	156-157
ページ数	2
ジャーナル	Chemistry Letters
巻	35
号	2
DOI	https://doi.org/10.1246/cl.2006.156
出版ステータス	Published - 2006 2月 5
外部発表	はい

ASJC Scopus subject areas

化学 (全般)

文献へのアクセス

10.1246/cl.2006.156

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引用スタイル

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N2 - 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.

AB - 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.

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