Reaction of di-μ-dichloro-bis(N,N-dimethylbenzylamine-C2,N)dipalladium(II) with diphosphines. Six-membered ring complexes bearing spiro rings

Synthesis, structural characterization and cis–trans isomerization of novel (salicylaldiminato)platinum(ii) complexes

“…As shown in Table 3, bond lengths and angles are well within the range of values obtained for analogous compounds. 19 In all cases, the angles between adjacent atoms in the coordination sphere are close to the expected value of 90°, and the sum of the angles around platinum is around 360°. The most noticeable distortion occurs in the O-Pt-Cl angle in the cis complexes 1a and 3a, where these bond angles are 83.94(7)°a nd 82.01(9)°, respectively.…”

Reactivity of C(sp2)-Pd and C(sp3)-Pd bonded palladacycles with diphosphines. Crystal and molecular structure of the novel A-frame complex [{Pd[2,5-Me2C6H2C(H) N(2,4,6-Me3C6H2)-C6]}2(μ-Ph2PCH2PPh2)2(μ-Cl)][PF6]

“…In the latter case the "bite" of the diphosphine is short enough to allow, in some cases, coordination of a second bridging ligand between the palladium atoms, e.g., halide or acetate anions. [41,46,48,50,55] In some cases both types of complexes may be easily interconverted [47]. However, when the cyclometallated ligand is strongly bonded to the palladium atom, as for example terdentate [C,N,S] ligands which give stable fused rings at the metal centre and leave only one coordination position available, dppm may also act as monodentate even when large amounts of this ligand are used.…”

Palladium(II) Complexes of Homologated Ferrocene Phosphanylether and Thioether Ligands

“…The 1 H and 13 C NMR spectra of complexes 8 and 9 display signals due to the auxiliary ortho ‐metalated ligand C 6 H 4 CH 2 NMe 2 and the P ‐coordinated ferrocenylphosphane, with the 3 J PC and 4 J PC coupling constants of the phosphorus‐coupled resonances of the CH 2 NMe 2 moiety suggesting a trans ‐P,N arrangement in both cases. [20d], [20f], [20j], [20l], The P‐monodentate coordination of the phosphanylferrocene donors could also be inferred from a shift of the 31 P NMR signals to a lower field ( δ P = 33.0 ppm for both compounds; coordination shift: Δ P ≈ 49 ppm) and from the fact that the signals of the terminal EMe (E = S and O) groups remained nearly unaffected by the coordination [cf. Δ δ H (EMe) = 0.05 ppm for 8 and 9 , Δ δ C (EMe) = 0.01 ppm for 8 , and 0.09 ppm for 9 ].…”

“…However, the geometric parameters are not significantly different from those reported for similar complexes [(L NC )PdCl(Ph 2 PfcX‐κ P )]. [20d], [20f], [20j], [20l], …”