Novel spin transition between S =  and S =  in highly saddled iron(III) porphyrin complexes at extremely low temperatures

Yoshiki Ohgo; Yuya Chiba; Daisuke Hashizume; Hidehiro Uekusa; Tomoji Ozeki; Mikio Nakamura

doi:10.1039/B601412G

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Novel spin transition between S = $[fraction five-over-two]$ and S = $[fraction three-over-two]$ in highly saddled iron(iii) porphyrin complexes at extremely low temperatures†

Yoshiki Ohgo,*^ab Yuya Chiba,^c Daisuke Hashizume,^d Hidehiro Uekusa,^e Tomoji Ozeki^e and Mikio Nakamura*^abf

Author affiliations

* Corresponding authors

^a Department of Chemistry, School of Medicine, Toho University, Ota-ku, Japan
E-mail: yohgo@med.toho-u.ac.jp, mnakamu@med.toho-u.ac.jp

^b Research Center for Materials with Integrated Properties, Toho University, Japan

^c Division of Biomolecular Science, Graduate School of Science, Toho University, Japan

^d Molecular Characterization Team, RIKEN, Wako, Japan

^e Department of Chemistry and Materials Science, Tokyo Institute of Technology, Tokyo 152-8551, Japan

^f Division of Chemistry, Graduate School of Science, Toho University, Japan

Abstract

A novel spin transition between S = $[fraction five-over-two]$ and S = $[fraction three-over-two]$ has been observed for the first time in five-coordinate, highly saddled iron(III) porphyrinates by EPR and SQUID measurements at extremely low temperatures.

$Graphical abstract: Novel spin transition between S = [[fraction five-over-two]] and S = [[fraction three-over-two]] in highly saddled iron(iii) porphyrin complexes at extremely low temperatures$

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Article information

DOI: https://doi.org/10.1039/B601412G
Article type: Communication
Submitted: 30 Jan 2006
Accepted: 14 Mar 2006
First published: 28 Mar 2006

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Chem. Commun., 2006, 1935-1937

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Novel spin transition between S = $[fraction five-over-two]$ and S = $[fraction three-over-two]$ in highly saddled iron(III) porphyrin complexes at extremely low temperatures

Y. Ohgo, Y. Chiba, D. Hashizume, H. Uekusa, T. Ozeki and M. Nakamura, Chem. Commun., 2006, 1935 DOI: 10.1039/B601412G

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