Phosphine complexes terms Links

CHCRCHCR)(HC(pz )3 ]PF6 (R = Ph, H) with the two alkynes linked head-to-tail when R = Ph. Vinylallenerhodium complexes with three kinds of coordination modes, that is, j -coordination of the terminal TT-bond of the allenyl group, if -coordination of the conjugated diene skeleton, and planar o -coordination, were synthesized by ligand substitution of RhCl(PPh3)3 with vinylallenes of specific substitution patterns (Scheme 35). Coordination preferences were explained in terms of spatial interactions between the vinylallene substituents and the phosphine ligands as well as effective delocalization of the Tt-electrons of the endo- and exocyclic double bonds. ... 

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