200577-68-0Relevant academic research and scientific papers
Site-selective PMe3 addition to the donor-acceptor complex Ru2(CO)6[(Z)-Ph2PCH=CHPPh2]. X-ray diffraction structure of Ru2(CO)5(PMe3) [(Z)-Ph2PCH=CHPPh2]
Shen, Huafeng,Bott, Simon G.,Richmond, Michael G.
, p. 223 - 228 (1998)
The diphosphine-bridged ruthenium dimer Ru2(CO)6[CZ)-Ph2PCH=CHPPh2] (1) reacts with added PMe3 under photochemical and thermal conditions and by Me3NO-induced activation at the phosphine-substituted ruthenium center to give Ru2(CO)5(PMe3)[(Z)-Ph2PCH=CHPPh 2] (2). The entering PMe3 is found to adopt axial and equatorial sites in 2, as confirmed by solution 1H and 31P NMR spectroscopy measurements. The solid-state structure of the equatorially substituted isomer 2e has been established by X-ray diffraction analysis. 2e crystallizes in the triclinic space group P1: a=10.8602(7), b=11.1801(9), c=15.680(1) A, α=79.788(6), β=82.838(6), γ=66.450(5)°, V=1714.6(2) A3, Z=2, Dcalc=1.578 g cm-3; R=0.0574, Rw=0.0627 for 3695 observed reflections with I > 3σ(I).
