80822-10-2Relevant academic research and scientific papers
Substitution reactions of CpRu (PPh3)2Cl with PPh2H and dppa
Geicke,Lorenz,Engel,Polborn
, p. 157 - 161 (1998)
One PPh3 group of CpRu(PPh3)2Cl is easily substituted by PPh2H to give the asymmetrical complex CpRu(PPh3)(PPh2H)Cl (1) in a very good yield. Attempts to form the λ4-phosphanediyl complex CpRu (PPh3)=PPh2 (1′) by selective dehydrohalogenation of 1 failed. However, by using one equivalent of the chelating diphosphine dppa two PPh3 ligands are substituted to yield CpRu(dppa)Cl (2). With an excess of dppa the reaction yielded the N-iminophosphoranyl-substituted dppa complex CpRu{(PPh2)2NPPh2=NH}Cl (3) and PPh2H. 1H, 13C{1H} and 31P{1H} NMR, IR and mass spectra of 1-3 are given. Crystals of 1 are monoclinic, space group P21/c with a=11.8446(12), b= 14.502(3), c= 17.504(2) A and β=95.55(9)°, Z=4 and R=0.0270 for 4299 observed reflections. Crystals of 2 are monoclinic, space group P21/c with a=10.7616(14), b=18.263(4), c= 13.859(2) A and β=110.41(1)°, Z=4 and R=0.0327 for 4227 observed reflections.
Synthesis, properties and crystal structures of pentamethylcyclopentadienyl- and cyclopentadienyl-ruthenium(II) diphenylphosphine complexes
Lubian, Roman Torres,Paz-Sandoval, M. Angeles
, p. 17 - 29 (2007/10/03)
The synthesis, characterization and single-crystal structure determination of chiral compounds (η5-C5R5)Ru(PHPh2)(PPh3)Cl (R=H 3, R=Me 4) and prochiral Cp * Ru(PHPh2)2Cl (6) are described. Compound 6 has been available from reaction of PHPh2 and several starting materials. The X-ray structure comparison between 3, 4 and 6 allowed us to compare the influence of the phosphine, Cp and Cp * ligands in these half-sandwich compounds. In addition, a structural investigation was carried out on Cp * Ru(NBD)Cl (7).
