Formation of an ethylene-bridged bis(benzisothiazole) dication by oxidative decomplexation of Ni(tsalen) with FeCl3

• Autores: Niranjan Goswami, Michael J. Van Stipdonk, David M. Eichhorn
• Localización: Inorganic chemistry communications, ISSN 1387-7003, Vol. 6, Nº 1, 2003, págs. 86-89
• Idioma: inglés
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• Resumen

  • Treatment of Ni(tsalen), where H2tsalen = bis(thiosalicylidene)imine with FeCl3 results in the isolation of a crystalline compound with the composition [BBITE2+][Ni(tsalen)]4[FeCl4−]2 (I), where BBITE=1,2-bis(1,2-benzisothiazol-2-yl)ethane. The production of the BBITE2+ cation represents a 4-electron oxidation of the tsalen2− ligand, even though FeCl3 is not a strong enough oxidant to promote any outer-sphere oxidation of the Ni(tsalen) complex. The crystal structure of I shows a series of channels which are maintained by non-covalent interactions between the [Ni(tsalen)] and BBITE2+ molecules.