57255-07-9Relevant academic research and scientific papers
Coordination chemistry of higher oxidation states. 5. Reaction of palladium(II) iodo complexes with molecular iodine and crystal and molecular structure of diiodo(cis-1,2-bis(diphenylphosphino)ethylene)palladium(II)-diiodine (1/1)
Gray, Leslie R.,Gulliver, David J.,Levason, William,Webster, Michael
, p. 2362 - 2366 (2008/10/08)
The reactions of [Pd(L-L)I2] (L-L = Me2As(CH2)3AsMe2 (1), cis-Ph2PCH=CHPPh2 (2), o-C6H4(SPh)2 (3)) with iodine produces the palladium(II) polyiodides [Pd(L-L)I4] (L-L = 1, 2) and [Pd(L-L)I3] (L-L = 3). Similarly [Pd(o-C6H4-(AsMe2)2) 2I2] is converted into [Pd(o-C6H4(AsMe2)2) 2(I3)2]. The crystal and molecular structure of [Pd(cis-Ph2PCH= CHPPh2)I4] has been determined by X-ray diffraction (orthorhombic, space group Pcab, a = 16.424 (3) ?, b = 17.955 (6) ?, c = 20.545 (2) ?, Z = 8). The palladium atom is four-coordinate (P2I2 donor set, Pd-P = 2.252 (3), 2.244 (3) ?, Pd-I = 2.660 (1), 2.652 (1) ?) in a square-planar arrangement with adjacent groups being linked by I2 molecules (I?I-I?I, I-I = 2.745 (1) ?, I?I = 3.527 (1), 3.483 (1) ?) to form approximately linear I4 groups. The results are compared with the reactions of [Pd(L-L)Cl2] and [Pd(L-L)Br2] with the corresponding halogens, which in some cases lead to palladium(IV) complexes.
