15076-72-9Relevant academic research and scientific papers
One-pot synthesis of trans mono- or diarylalkynyl substituted platinum(II) compounds with tertiary phosphine or phosphite ligands
Carlsson, Marcus,Eliasson, Bertil
, p. 5500 - 5502 (2008/10/09)
An efficient one-pot synthesis has been developed for preparation of trans-mono- or diarylalkynyl bisphosphine or bisphosphite Pt(II) compounds. In the procedure, the alkyne and the tertiary phosphorus ligands are mixed with PtCl2 in tetrahydro
Cleavage reactions of halogen-bridged heterobimetallic palladium-platinum complexes. Crystal and molecular structure of [(P-n-Bu3)Cl2Pd(t-BuN=CHCH=N-t-Bu)PtCl 2(P-n-Bu3)]
Clark, Howard C.,Ferguson, George,Jain, Vimal K.,Parvez, Masood
, p. 3808 - 3811 (2008/10/08)
Cleavage reactions of dichloro-bridged species [(P-n-Bu3)ClPd(μ-Cl)2PtCl(P-n-Bu3)] (I) with nitrogen-containing ligands (e.g. 4-cyanopyridine) and a variety of bis(phosphines) generally give mixtures of mononuclear products. However, reactions of I with bis(1-pyrazolyl)methane or with N,N′-dialkyl-1,2-diiminoethanes preserve the 1:1 Pd:Pt ratio and apparently give bridged heterobimetallic products. Crystals of the reaction product of I with t-BuN=CHCH=N-t-Bu, with a composition corresponding to [(P-n-Bu3)ClPd(t-BuN=CHCH=N-t-Bu)PtCl(P-n-Bu3)], are monoclinic, space group P21/n, with a = 11.454 (4) A?, b = 16.026 (4) A?, c = 12.909 (3) A?, and β = 99.91 (2)°. With Z = 2, the molecules must lie about inversion centers, and the Pd and Pt atoms are mutually disordered. The structure was solved by the heavy-atom method and refined by full-matrix least-squares calculations with anisotropic thermal parameters; R = 0.044 and Rw = 0.047 for 2707 reflections. The geometry around the metal atom is distorted square planar with M-P = 2.230 (2) A?, M-Cl = 2.295 (2) A?, and M-N = 2.135 (5) A?. The data are consistent with the preservation of a 1:1 Pd:Pt ratio in this product of a Pd(μ-Cl)2Pt bridge cleavage reaction.
OXIDATIVE ADDITION - REDUCTIVE ELIMINATION SEQUENCES IN THE PHOTOCHEMISTRY OF SOME BIS(PHOSPHINE)PLATINUM COMPLEXES
Bartocci, Carlo,Maldotti, Andrea,Sostero, Silvana,Traverso, Orazio
, p. 253 - 258 (2007/10/02)
The photolysis of (L = PPh3, P(p-C6H4CH3)3 complexes in halocarbon solvents (CH2Cl2, CH2Br2) gives C2H4 and the coordinatively unsaturated species .Photolysis of platinum metallacycles (L = PPh3, P(n-Bu)3) generates alkanes
Evidence for Asymmetrical Cleavage of Halide-bridged Platinum(II) Complexes by Nucleophiles
Cross, Ronald J.,Phillips, Ian G.
, p. 2132 - 2136 (2007/10/02)
The addition of PMe2Ph to at low temperatures produces the ions (1+) and (1-) as major products, as well as some of the expected .It is argued that the ionic species result from two molecules of the attacking nucleophile adding to a single platinum atom of the dimer, instead of the more common symmetrical attack.Less ionic product is produced from the addition of PBu3 to and PMe2Ph to , and none at all was detected from the addition of PBu3 to , so the nature of the phosphines involved has a profound effect on the course of the reactions.The ionic materials are able to undergo rapid phosphine exchange even at -60 deg C if excess ligand (PR3 or Cl-) is present.These exchange reactions can complicate the range of products observed unless precautions are taken to prevent local accumulations of the phosphine in the course of mixing the reactants.
