PREPARATION AND STRUCTURAL CHARACTERIZATION OF 3 ADAMANTYLCARBOXYLATO DIRUTHENIUM(II,II), DIRUTHENIUM(II,III) AND DIMOLYBDENUM(II,II) COMPOUNDS

Three new compounds containing adamantylcarboxylate ligands, [Ru~(C~~H&O&(CH~OH)~].~CH~OH (l), [Ru~(C,~,~CO~)~(C~~)(CH~~H)2~CIH. ,OH (2) and Mo,(C,~H,CO,),(C,H,O)~ (3), have been prepared by reacting K,[Ru2(C0&]-4Hz0, &MO&~, and Moz(OAc), with C&H,,CO,H. Their crystal structures have been determined. Crystals are as follows. 1: space group P2,/c, a = 12.966(2), b = 16.541(4), c = 12.573(3) A, p= 118.77(2)“, V= 2364(l) A3, Z = 2, Ru-Ru distance = 2.2809(9) A. 2: space group P2,212,, u = 13.062(l), b = 26.375(4), c = 11.943(2) A3, Z=4. The Ru-Ru distance is 2.254(8) A. 3: space group Pl, a = 12.897(2), b = 17.308(2), LY= 107.703(9), p=92.06(1), y=93.01(1)‘, V=2529.0(6) A3, Z=2. The average Mo-MO distance +he formation of 1 from the starting tetracarbonato complex appears to involve disproportionation of 2Rud+ to Ru,‘+ and 2Ru3+. Introductio