SciELO - Scientific Electronic Library Online

 
vol.45 número4DETERMINATION ON THE ABSOLUTE CONFIGURATION OF XYLOPIACIN BY MOSHR ESTER METHODOLOGY AND MOLECULAR MODELING STUDIESNuevo sistema integrado cromatografía líquida de alta resolución / nebulizador hidráulico de alta presión y temperatura (HPLC/HT-HHPN) para la separación automática de la matriz en la determinación de metales en salmueras con espectrometría de absorción atómica (FAAS) índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Boletín de la Sociedad Chilena de Química

versão impressa ISSN 0366-1644

Resumo

DIAZ, C.  e  VALENZUELA, M.L.. Dendrimers based on cyclophosphazene unit and containing iron (III). Bol. Soc. Chil. Quím. [online]. 2000, vol.45, n.4, pp.527-533. ISSN 0366-1644.  http://dx.doi.org/10.4067/S0366-16442000000400003.

The complexes [N3P3(OC6H5)5OC6H4CH2CN.FeCl2]PF6 (1) and [N3P3(OC6H4CH2CN)6. (FeCl2)6](PF6)6 (2) have been syntethyzed by reaction of the corresponding cyclophosphazene ligands: N3P3(OC6H5)5OC6H4CH2CN (3) and N3P3(OC6H4CH2CN)6 (4) with FeCl3 in CH3OH as solvent and in presence of NH4PF6. The new compounds were characterized by elemental analysis and IR, UV-Visible and EPR spectroscopy as well as electrochemical methods. The hexametalladendrimers exhibits a six-electron reduction while that the monometalladendrimers exhibit a single one-electron reduction. The paramagnetic complexes exhibit strong EPR signals in solid as well as in CH2Cl2 solution.

Palavras-chave : Dendrimers; cyclophosphazene; iron; nitrile complexes.

        · resumo em Espanhol     · texto em Inglês

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons