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.[1]
Names | |
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Preferred IUPAC name Tris(2-methylphenyl)phosphane | |
Other names Tri(o-tolyl)phosphine; P(o-tol)3 | |
Identifiers | |
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3D model (JSmol) | |
661212 | |
ChemSpider | |
ECHA InfoCard | 100.025.631 |
EC Number |
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PubChem CID | |
UNII | |
CompTox Dashboard (EPA) | |
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Properties | |
C21H21P | |
Molar mass | 304.373 g·mol−1 |
Appearance | White solid |
Melting point | 124 °C (255 °F; 397 K) ±1 |
Hazards | |
GHS labelling: | |
Warning | |
H315, H319, H335, H410 | |
P261, P264, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P391, P403+P233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
See also
References
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