NEW RUTHENIUM(II) COMPLEXES OF FUNCTIONALIZED MONOANIONIC ARYLDIAMINEN,C,N'-TERDENTATE LIGANDS - SYNTHESES OF RU-II(2,6-(ME(2)NCH(2))(2)-4-R-C6H2)-(TERPY)]CL--) - X-RAY STRUCTURE OF A DIMERIC ORGANOLITHIUM OMPOUND,[LI(2,6-(ME(2)NCH(2))(2)-4-PH-C6H2)](2)(()

The new anionic functionalized aryldiamine ligands [2,6-(Me(2)NCH(2))( 2)-4-R-C6H2](-) (R = Me(3)SiC=C, C6H5, Me(3)Si), formally derived from [2,6-(Me(2)NCH(2))(2)C6H3](-), have been prepared as their lithium co mpounds. The compound [Li{2,6-(Me(2)NCH(2))(2)-4-Ph-C6H2}](2) crystall izes in the monoclinic space group C2/c (no. 15) with a = 13.1225(5), b = 13.5844(7), c = 15.9859(12) Angstrom, beta = 105.329(5)degrees, V = 3264.0(3)Angstrom(3), Z = 4. The structure refinement converged to R (1) = 0.0374 for 2037 observed reflections [F-o>4 sigma(F-o)] and wR(2 ) = 0.0922 for 2560 unique data. The organolithium compounds have been used in transmetalation reactions to give the corresponding functiona lized organoruthenium(II) complexes u-II{2,6-(Me(2)NCH(2))(2)-4-R-C6H2 }(terpy)]Cl-+(-) (terpy = 2,2';6',2 ''-terpyridine). The Ru-II species with R = HC = C has also been synthesized.