263870-08-2Relevant academic research and scientific papers
On the reactivity of platina-β-diketones - Synthesis and characterization of acylplatinum(II) complexes
Steinborn, Dirk,Hoffmann, Tobias,Gerisch, Michael,Bruhn, Clemens,Schmidt, Harry,Nordhoff, Karsten,Davies, Julian A.,Kirschbaum, Kristin,Jolk, Ingo
, p. 661 - 666 (2008/10/08)
The platina-β-diketones [Pt2{(COR)2H}2(μ-Cl)2] (1, R = Me a, Et b) react with phosphines L in a molar ratio of 1:4 through cleavage of acetaldehyde to give acylplatinum(II) complexes trans-[Pt(COR)Cl(L)2] (2) (R/L = Me/P(p-FC6H4)3 a, Me/P(p-CH2=CHC6H4)Ph2 b, Me/P(n-Bu)3 c, Et/P(p-MeOC6H4)3 d). 1a reacts with Ph2As(CH2)2PPh2 (dadpe) in a molar ratio of 1:2 through cleavage of acetaldehyde yielding [Pt(COMe)Cl(dadpe)] (3a) (configuration index: SP-4-4) and [Pt(COMe)Cl(dadpe)] (configuration index: SP-4-2) (3b) in a ratio of about 9:1. All acyl complexes were characterized by 1H, 13C and 31P NMR spectroscopy. The molecular structures of 2a and 3a were determined by single-crystal X-ray diffraction. The geometries at the platinum centers are close to square planar. In both complexes the plane of the acyl ligand is nearly perpendicular to the plane of the complex (88(2)° 2a, 81.2(5)° 3a).
