REACTIVITY OF [PD(CN)(C6F5)(NCME)] (CN = ((DIMETHYLAMINO)METHYL)PHENYL-C2,N, 8-QUINOLYMETHYL-C,N) TOWARD 2,2'-BIPYRIDINE OR 1,10-PHENANTHROLINE - SYNTHESIS AND STRUCTURES OF [(PD(8-MQ)(C6F5))2(MU-BPY)] AND [(C6F5)(8-MQ)PD(MU-8-MQ)PD(C6F5)(PHEN)], DINUCLEAR COMPLEXES CONTAINING UNUSUAL 2,2'-BIPYRIDINE OR UNPRECEDENTED 8-QUINOLYMETHYL-C,N ACTING AS BRIDGING LIGANDS

[Pd(dmba)(C6F5)(NCMe)] (A) (dmba = ((dimethylamino)methyl)phenyl-C2,N) reacts with bpy or phen (N-N), yielding the corresponding mononuclear derivatives [Pd(dmba)(C6F5)(N-N)] (N-N = bpy (1), phen (2)) irrespective of the molar ratio used (1:1 or 2:1). [Pd(8-mq)(C6F5)(NCMe)] (B) (8-mq = 8-quinolylmethyl-C,N) reacts with bpy (molar ratio 1:1 or 2:1), yielding [{Pd(8-mq)(C6F5)12(mu-bpy)] (4), a dinuclear compound containing 2,2'-bipyridine acting as a bridging ligand. The reactions of B with phen (molar ratio 1:1) renders the mononuclear four-coordinated derivative [Pd(8-mq)(C6F5)(phen)] (3) while the reaction in a 2:1 molar ratio renders [(C6F5)(8-mq)Pd(mu-8-mq)Pd(C6F5)(phen)] (5), a dinuclear compound containing one 8-mq group coordinated as a chelate ligand and the other acting as an unprecedent bridging one. The structural behaviors of these complexes have been established on the bases of H-1 and F-19 NMR spectra and the X-ray structure of compounds 2, 4, and 5. Crystal data for complex 2: monoclinic P2(1)/c, a = 12.651(3) angstrom, b = 9.982(2) angstrom, c = 19.351(4) angstrom, beta = 91.27(3)-degrees, Z = 4, R = 0.056. Crystal data for complex 4: monoclinic C2/c, a = 9.8801(4) angstrom, b = 24.8399(12) angstrom, c = 34.1826(16) angstrom, beta = 95.352(8)-degrees, Z = 8, R = 0.058. Crystal data for complex 5: monoclinic P2(1)/c, a = 12.3935(5) angstrom, b = 12.9381(6) angstrom, c = 24.1387(12) angstrom, beta = 102.72(4)-degrees, Z = 4, R = 0.034.