Tristriphenylphosphine Rhodium Carbonyl Hydride
Title: Tristriphenylphosphine Rhodium Carbonyl Hydride
CAS Registry Number: 17185-29-4
CAS Name: Carbonylhydrotris(triphenylphosphine)rhodium
Additional Names: hydridocarbonyltris(triphenylphosphine)rhodium(I)
Molecular Formula: C55H46OP3Rh
Molecular Weight: 918.78
Percent Composition: C 71.90%, H 5.05%, O 1.74%, P 10.11%, Rh 11.20%
Line Formula: HRh(CO)[P(C6H5)3]3
Literature 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.
Melting point: mp 120-122° in air; 172-174° under nitrogen
Density: d 1.33
Use: Catalyst.

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