β Scribed by D.A Robins; I Jenkins
No coin nor oath required. For personal study only.
A method is described for determining the heats of formation of highly stable metal silicides and data are given for the following compounds:-Ti& TiSi, TiSiz, Zr&, ZrSi, ZrSiz, ThSiz, V&i, Ta&, TaSi,, MoSiz, and WSi2. The highest heats of formation are those of compounds containing Group IVa metals and, in general, the disilicides are not as stable as compounds containing a lower percentage of silicon. An analysis of the bond lengths in the disilicides is carried out and a comparison is made between the heats of formation data and changes in the character of the metal bonding. CHALEURS DE FORMATION DE QUELQUES SILICIURES DES Ml?TAUX DE TRANSITION 11 est dtcrit une m&hode pour la determination des chaleurs de formation de siliciures t&s stables et les valeurs correspondant aux composts suivants sont don&es: Ti& TiSi, TiSiz, Zr&, ZrSi, ZrSit, ThSi2, V&i. Ta&. TaSiz. MoSis et WSiz. Les chaleurs de formation les plus Blevtes correspondent aux mdtauP All . -.. grit&e 1~Vi'et, en &n&al, les disiliciures ne sont pas aussi stables clue les compo& comportant un pourcentage plus faible de silicium. La longueur de la liaison dans les disiliciures est Ctudiee et les chaleurs de formation sont comparCes aux changements dans le caractkre de la liaison des atomes de metal. DIE BILDUNGSWARMEN EINIGER SILIZIDE VON ~BERGANGSMETALLEN Zur Bestimmung der Bildungswlrmen von sehr stabilen Metallsilziden wird eine Methode beschrieben.
π SIMILAR VOLUMES
There have been comparatively few studies made on the complex formation between phenolate anions and metal ions. Much of the interest has been focused on the colored complex of iron(III) phenolate and formation constants of this complex were recorded (1). We previously reported the equilibrium data