Synthesis and Redox Behavior of Dicobalt Complexes Having Flexible and Rigid Linkers

Synthesis and Redox Behavior of Dicobalt Complexes Having Flexible and Rigid Linkers

New dicobalt complexes, [CoII2L], with Schiff-base ligands (L1–L4) having two discrete metal chelating sites, which are connected to each other by flexible and rigid linkers, have been synthesized. The complexes were characterized by IR, UV–vis, and mass spectroscopy as well as elemental analyses. A...

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Veröffentlicht in:Bulletin of the Chemical Society of Japan 2005-06, Vol.78 (6), p.1040-1046
Hauptverfasser: Shimakoshi, Hisashi, Hirose, Satoshi, Ohba, Masaaki, Shiga, Takuya, Okawa, Hisashi, Hisaeda, Yoshio
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container_end_page 1046
container_issue 6
container_start_page 1040
container_title Bulletin of the Chemical Society of Japan
container_volume 78
creator Shimakoshi, Hisashi
Hirose, Satoshi
Ohba, Masaaki
Shiga, Takuya
Okawa, Hisashi
Hisaeda, Yoshio
description New dicobalt complexes, [CoII2L], with Schiff-base ligands (L1–L4) having two discrete metal chelating sites, which are connected to each other by flexible and rigid linkers, have been synthesized. The complexes were characterized by IR, UV–vis, and mass spectroscopy as well as elemental analyses. A magnetic study indicates an antiferromagnetic interaction in 4. The redox behavior of the complexes was examined by means of cyclic voltammetry compared with those of the corresponding mononuclear complexes. Redox waves, identified to CoIII/CoII and CoII/CoI, were clearly observed. Electro-generated [CoI2L]2− reacts with alkyl halide at each metal center to give an organocobalt complex.
doi_str_mv 10.1246/bcsj.78.1040
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source Oxford University Press Journals All Titles (1996-Current)
title Synthesis and Redox Behavior of Dicobalt Complexes Having Flexible and Rigid Linkers
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