Compostos de coordenação de dimorfolino cloro-fosfinoxido com alguns metais de transição bivalentes

AUTOR(ES)
DATA DE PUBLICAÇÃO

1977

RESUMO

Coordination compounds were prepared by the reaction between chlorides, nitrates and perchlorides of some bivalent transition metals of the first row of transition elements with chlore-dimorpholinephosphine oxide in methanolic solution. The compounds so obtained were caracterized by means of elementar analysis, infrared spectra, far infrared and visible spectra, x-ray powder patterns, thermogravimetric analysis and their molar conductances in acetonitrile. The elementar analysis and the molar conductances measurements indicated that the compounds can be formulated as [M(Mf2POCl)2] X2, where M=Mn, Co, Ni, Cu or Zn and X=NO3 or ClO4 and MCl2 . Mf2POCl where M= Co, Cu and Zn. The coordination compounds for manganese and nickel chloride were no obtained. The vibrational spectra in the infrared region shew that the chlore-dimorpholinephosphine oxide were coordenated to the metalic íon through the oxigen of the phosphoryl group and trough one or two nytrogen atom of the morpholine groups actuating as a bi or tridentated ligand. The nitrate and perchlorate anions are no coordinated to the metals ions. According with the x-ray powder pattern were obtained two series of isomorphus compounds: the first contains the coordination compounds af cobalt and zinc chlorides; the second, the compounds. of manganese, cobalt and zinc nitrates; and the third the oompounds of cobalt, nickel, copper and zinc perchlorate. The thermogrevimetric curves show decomposition ranges of the compounds prepared. The visible and far infrared spectra of the compounds were determined in acetonitrile solution with exception of the compounds of nickel pcrchloride that was determined in the solid state. The crystaline parameters, Dq and B, were calculated from the absortion bands observed. With the B values were calculated the b values. The results of the eletronic spectra as well as those of infra-red epectra and molar conductance measurements indicated that alI of the cobalt, nickel and copper compounds, the metal ions were pseudo tetrahedraly surrounded.

ASSUNTO(S)

fosforo cloro oxidos ligas de metais de transição

ACESSO AO ARTIGO

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