15N solid-NMR and X-ray diffraction studies of N-confused porphyrins

Masashi Fukuchi, K. Takegoshi, Tomoya Ishizuka, Hiroyuki Furuta

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Using 15N high-resolution solid-state NMR and X-ray diffraction, the structure of N-confused porphyrin (NCP) in the solid state was studied. A 1D 15N magic angle spinning (MAS) experiment and a 2D dipolar assisted rotational resonance (DARK) 15N-15N spin exchange experiment of N-confused tetratolylporphyrin (Tol) crystallized from CH 2Cl2/hexane indicate that Tol is the inner 3H-type tautomer and has two magnetically different molecules in the unit cell. Further, a FSLG-24̄2 1H-15N dipolar recoupling NMR measurement indicates no fast ring flipping motion which is consistent with the planar structure in the X-ray analysis. The planarity of Tol is ascribed to crystal packing enforced by π-π stacking and CH-π interactions.

Original languageEnglish
Pages (from-to)S56-S60
JournalMagnetic Resonance in Chemistry
Volume45
Issue numberSUPPL.
DOIs
Publication statusPublished - Dec 1 2007

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Porphyrins
Nuclear magnetic resonance
X ray diffraction
Magic angle spinning
X ray analysis
Hexanes
Hexane
Experiments
Crystals
Molecules

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

Cite this

15N solid-NMR and X-ray diffraction studies of N-confused porphyrins. / Fukuchi, Masashi; Takegoshi, K.; Ishizuka, Tomoya; Furuta, Hiroyuki.

In: Magnetic Resonance in Chemistry, Vol. 45, No. SUPPL., 01.12.2007, p. S56-S60.

Research output: Contribution to journalArticle

Fukuchi, Masashi ; Takegoshi, K. ; Ishizuka, Tomoya ; Furuta, Hiroyuki. / 15N solid-NMR and X-ray diffraction studies of N-confused porphyrins. In: Magnetic Resonance in Chemistry. 2007 ; Vol. 45, No. SUPPL. pp. S56-S60.
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