. Can. J. Chem. 72, 1605 (1994). The new complex [Ag2(hfac)2(p-dmpm)2] (hfac = hexafluoroacetylacetonato, dmpm = Me2PCH,PMe,) has been prepared and characterized both spectroscopically and by an X-ray structure determination (orthorhombic, Pbca (No. 61 [Traduit par la redaction]