2308.     MOND, R. L., AND WALLIS, A. E.  Researches on the Metallic Carbonyls.  Jour. Chem. Soc., vol. 121, 1922, pp. 29-32; Chem. Abs., vol. 16, 1922, p. 2457.

        Composition of Mo carbonyl, redetermined by 2 methods, corresponds to Mo₅(CO)₂₆.  It is insoluble in the common solvents.  2 yr. were required to prepare 170 mg.  Ru gives 2 carbonyls, one volatile is crystalline and soluble in C₆H₆, and the other is nonvolatile, amorphous, and insoluble in C₆H₆, but soluble in C₂H₅OH and in H₂O.  The formula of the latter appears to be Ru(CO)₂.  Optimum conditions are described for the preparation of Fe(CO)₅.  Ni(CO)₄, air, and moist CO heated at 200° react to give a yellow deposit, which is shown to be a colloidal basic Ni carbonate of varying composition.

        MONROE, G. S.  See abs. 1579, 1579a.

        MONTGOMERY, C. W.  See abs. 117, 3599.