Compostos heterometálicos. Interação do tricarbonil com ligação W-Hg, [WCl(CO)3(bipy)(HgCl)], com tiouréias

Foram efetuadas reações entre o heterometálico [WCl(CO)3(bipy)(HgCl)], (bipy = 2,2'-bipiridina) e tiouréias que levaram à formação de compostos do tipo [WCl(CO)3(bipy)(HgCl)L] [L = tiouréia (tu); N-metiltiouréia (mtu); N,N-dimetiltiouréia (dmtu)]. Os espectros de absorção no infravermelho mostr...

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Published in:Eclética química 1997, Vol.22, p.75-82
Main Authors: KAZUKO MURAOKA, Tereza, MAURO, Antonio Eduardo, MARTINS NOGUEIRA, Vânia, HADDAD, Paula Silvia
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container_title Eclética química
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creator KAZUKO MURAOKA, Tereza
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description Foram efetuadas reações entre o heterometálico [WCl(CO)3(bipy)(HgCl)], (bipy = 2,2'-bipiridina) e tiouréias que levaram à formação de compostos do tipo [WCl(CO)3(bipy)(HgCl)L] [L = tiouréia (tu); N-metiltiouréia (mtu); N,N-dimetiltiouréia (dmtu)]. Os espectros de absorção no infravermelho mostram que a esfera de coordenação do tungstênio mantêm-se inalterada e que as tiouréias encontram-se ligadas ao átomo de mercúrio através do átomo de enxofre. Reactions of [WCl(CO)3(bipy)(HgCl)], [bipy = 2,2’-bipyridine], with thioureas were performed giving compounds of the type [WCl(CO)3(bipy)(HgCl)], [L= thiourea (tu); N-methylthiourea (mtu); N,N-dimethylthiourea (dmtu)] in which the coordination sphere of the tungsten atom remained unchanged. The coordination of the thioureas to mercury atom was proved to occur, in accord to infrared spectra, through the sulphur atom.
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title Compostos heterometálicos. Interação do tricarbonil com ligação W-Hg, [WCl(CO)3(bipy)(HgCl)], com tiouréias
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