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The vast majority of mixed valence compounds is represented by polynuclear crystalline compounds.1 Complexes with only two metallic centers exhibiting intervalence electron transfer spectra have been recently studied by Taube and by Cowan.2 In our search for simple systems showing intervalence electronic transitions, we investigated the reaction of Feni(CN)8NH32" with Fen(CN)64". Job's method3 has been applied to solutions containing the two mononuclear complexes showing that a binuclear species is formed. Since the hexacyano complex of low-spin iron(II) is extremely

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The reaction of indium(I) bromide with α,ω-alkanediylbis(bromomercury) complexes (alkane = butane, pentane, and hexane) resulted in formation of the corresponding α,ω-alkanediylbis(dibromoindium) compounds, which were isolated as THF adducts. The THF molecules of the complexes are easily displaced by bromide anions, thus affording the corresponding α,ω-alkanediylbis(tribromoindate) dianions.

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