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Electronic structure of the one-electron oxidation product of triple-decker lutetium phthalocyanine trimer

✍ Scribed by Naoto Ishikawa; Youkoh Kaizu

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
600 KB
Volume
236
Category
Article
ISSN
0009-2614

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✦ Synopsis

The measurement of the electronic and ESR spectrum of triple-decker phthalocyanine trimer radical in solution is reported. The one-electron oxidation product of the soluble trimer ([(Pc)Lu(CRPc)Lu(Pc)]: Pc = phthalocyanine; CRPc = 15crown-5 substituted Pc) in dichlorometh,':ae shows an ESR signal at g = 2.0022 at 77 K, and an intense near-IR band at ---5 Γ— l03 cm-~. The origin of the near-lR band (which corresponds to the near-lR band of the dimer radical [Lu(Pc) 2] at 7 x 103 cm-I) as well as bands in the Q-band region are discussed in terms of a localized orbital model.

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This review describes the relationship between the NMR chemical shifts and electronic structures of oneelectron oxidized products of iron(III) porphyrins such as iron(III) porphyrin radical cations or iron(IV) porphyrins. In the case of the former complexes, the iron(III) ions are classified into fo