9758. Tristriphenylphosphine Rhodium Carbonyl Hydride

Nomenclature

CAS number: 17185-29-4
Carbonylhydrotris(triphenylphosphine)rhodium; hydridocarbonyltris(triphenylphosphine)rhodium(I).
C55H46OP3Rh; mol wt 918.78.
C 71.90%, H 5.05%, O 1.74%, P 10.11%, Rh 11.20%.
HRh(CO)[P(C6H5)3]3.

Description and references

Prepn: Bath, Vaska, J. Am. Chem. Soc. 85, 3500 (1963); Levison, Robinson, J. Chem. Soc. A 1970, 2947; Ahmad et al., J. Chem. Soc. Dalton Trans. 1972, 843; Ahmad et al., Inorg. Synth. 15, 45 (1974). Structure: LaPlaca, Ibers, J. Am. Chem. Soc. 85, 3501 (1963); eidem, Acta Crystallogr. 18, 511 (1965). Chemistry: Evans et al., J. Chem. Soc. A 1968, 2660; O'Connor, Wilkinson, ibid. 2665.

Properties

Yellow microcrystals, d 1.33. mp 120-122° in air; 172-174° under nitrogen. Moderately sol in benzene, chloroform, dichloromethane; sparingly sol in cyclohexane; insol in light petroleum. Dissociates extensively in organic solvents.

Use

Catalyst.