page_title: Tris(o-tolyl)phosphine
hierarchical_section_title: Tris(o-tolyl)phosphine
caption_attribution_description: English: structure of Herrmann's Catalyst
context_page_description: Tris(o-tolyl)phosphine is an organophosphorus compound with the formula P(C₆H₄CH₃)₃. It is a white, water-insoluble solid that is soluble in organic solvents. In solution it slowly converts to the phosphine oxide. As a phosphine ligand, it has a wide cone angle of 194°. Consequently, it tends to cyclometalate when treated with metal halides and metal acetates. Complexes of this ligand are common in homogeneous catalysis.
context_section_description: Tris(o-tolyl)phosphine is an organophosphorus compound with the formula P(C₆H₄CH₃)₃.  It is a white, water-insoluble solid that is soluble in organic solvents.  In solution it slowly converts to the phosphine oxide.  As a phosphine ligand, it has a wide cone angle of 194°.  Consequently, it tends to cyclometalate when treated with metal halides and metal acetates.  Complexes of this ligand are common in homogeneous catalysis.
caption: Structure of a Herrmann's catalyst, which is derived from tris(o-tolyl)phosphine.[2]
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