156397-50-1Relevant academic research and scientific papers
Bridging cyaphide (C≡P-) and bridging aryl isocyaphide (C≡P-R) ligands: Synthesis and characterization of (X)(PEt3)2Pt(μ-C=P)Pt(PEt3)2 and (X)(PEt3)Pt(μ-C=P-R)Pt(PEt3)2(X) (X = Cl, Br; R = 2,4,6-tri-tert-butylphenyl)
Jun, Hyoung,Angelici, Robert J.
, p. 2454 - 2460 (2008/10/08)
The halophosphaalkene platinum complexes, trans-(X)(PEt3)2Pt[C(=PR)X] (1a, X = Cl; 1b, X = Br; R = 2,4,6-tri-tert-butylphenyl) react with Pt(PEt3)4 to yield (X)(PEt3)Pt(μ-C=PR)-Pt(PEt3)2(X) (3a, X = Cl; 3b, X = Br). The molecular structure of 3a shows that it contains a semibridging isocyaphide (C≡P-R) ligand. The platinum complexes trans-(X)(PEt3)2Pt[C(=PR)X] (1a, X = Cl; 1b, X = Br; R = 2,4,6-tri-tert-butylphenyl) react with Pd(PEt3)4 to give (X)(PEt3)2Pt(C≡P) (4) and (X)(PEt3)2Pd(R) (5). Complexes 4, which are tentatively assigned a structure with a terminal cyaphide (C≡P-) ligand, react with Pt(PEt3)4 to give bridging cyaphide diplatinum complexes (PEt3)2Pt(μ-C=P)Pt(PEt3)2(X) (6a, X = Cl; 6b, X = Br). The molecular structure of 6a exhibits a bridging C≡P- ligand carbon-bonded to Pt(1) and η2-bonded to Pt(2). In the structure of 5a, a methyl group of each of the two o-tert-butyl groups of the R ligand sits above (and below) the Pd; however, NMR studies suggest there is little if any agostic interaction.
