Title: Palladium Diacetate
CAS Registry Number: 19807-27-3
CAS Name: Acetic acid palladium salt
Additional Names: bis(acetato)palladium; diacetatopalladium(II); palladium(II) acetate
Molecular Formula: C4H6O4Pd
Molecular Weight: 224.51
Percent Composition: C 21.40%, H 2.69%, O 28.51%, Pd 47.40%
Line Formula: (CH3COO)2Pd
Literature References: Prepn from palladium sponge or palladium nitrate and glacial acetic acid: Morehouse et al., Chem. Ind. (London) 1964, 544; Stephenson et al., J. Chem. Soc. 1965, 3632; from hydrated palladium oxide and acetic acid: Hausman et al., FR 1403398 corresp to US 3318891 (1965, 1967 to Engelhard). Crystal structure of trimeric palladium acetate: Skapski, Smart, Chem. Commun. 1970, 658.
Properties: Orange-brown crystals; mp 205° (dec). Shown to be trimeric by osmometric determn of mol wt in benzene (37°); monomeric by ebullioscopic measurement in benzene (80°). Crystals are trimeric. Sol in chloroform, methylene dichloride, acetone, acetonitrile, diethyl ether; sol with dec in aq HCl, aq KI solutions. Insol in water, aq NaCl, NaNO3, NaOAc solns, petroleum, alcohols. Dec when warmed with alcohols.
Melting point: mp 205° (dec)
Use: Catalyst. |