Carbonyltris(triphenylphosphine)rhodium(I) hydride
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Carbonyltris(triphenylphosphine)rhodium(I) hydride
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CAS No:
17185-29-4
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Formula:
3C18H15P.CO.HRh
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Chemical Name:
Carbonyltris(triphenylphosphine)rhodium(I) hydride
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Synonyms:
HYDRIDOCARBONYLTRIS(TRIPHENYLPHOSPHINE)RHODIUM (I);CARBONYLHYDRIDOTRIS(TRIPHENYLPHOSPHINE)RHODIUM(I);CARBONYLTRIS(TRIPHENYLPHOSPHINE)RHODIUM(1) HYDRIDE;CARBONYLTRIS(TRIPHENYLPHOSPHINE)RHODIUM(I) HYDRIDE;TRIS(TRIPHENYLPHOSPHINE)RHODIUM(I) CARBONYL HYDRIDE;(betab-5-23)-rhodiu;carbonylhydrotris(triphenylphosphine)rhodium;TRIS(TRIPHENYLPHOSPHINE)RHODIUM(I) &
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CAS No:
Description
Carbonylhydrido-tris(triphenylphosphine)rhodium(I), carbonyl-tris(triphenylphosphine)rhodium(I) hydride, forms yellow crystals that are stable in air, mp 172 – 174℃ in a closed nitrogen-filled capillary. It is readily soluble in benzene, chloroform, and dichloromethane. In solution, one phosphine ligand is readily lost by dissociation to give a 16-electron complex that is an active catalyst for the hydrogenation of alkenes and for hydroformylation.
Carbonyltris(triphenylphosphine)rhodium(I) hydride Basic Attributes
918.8
917.173828
241-230-3
TSCA listed
light yellow
28439000
Characteristics
40.77000
10.12640
light yellow crystal
1.33
150 °C (dec.) (lit.)
360ºC at 760mmHg
181.7ºC
soluble in hydrocarbons (e.g. benzene and toluene) with dissociation of phosphine ligands
2-8°C
0Pa at 25℃
Keep in dark place,Inert atmosphere,2-8°C
Safety Information
III
4.3
UN 2811 6.1/PG 2
1
T
36/37/39-45-36/37
T
23/24/25
UN 2811 6.1/PG 2
|Danger|H301 (82.98%): Toxic if swallowed [Danger Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P311, P312, P321, P322, P330, P332+P313, P337+P313, P361, P362, P363, P403+P233, P405, and P501|Aggregated GHS information provided by 47 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Toxicity
ACGIH: TWA 0.01 mg/m3; TWA 1 mg/m3NIOSH: IDLH 2 mg/m3; IDLH 100 mg/m3; TWA 0.001 mg/m3; TWA 0.1 mg/m3
Carbonyltris(triphenylphosphine)rhodium(I) hydride Use and Manufacturing
Catalyst.
Carbonylhydrido-tris(triphenylphosphine)rhodium(I) is used in industry for the hydroformylation of alkenes by the low pressure oxo (LPO) process developed by Union Carbide, Davy Power Gas, and Johnson Matthey. The reaction takes place rapidly at 25℃ giving a product in which the ratio of n- to iso-aldehydes is very favorable (ca. 20 : 1), a much higher ratio than can be obtained with cobalt catalysts.
Hydrogenation, hydrosilation, isomerization, carbonylation, hydroformylation, oxidation
Carbonyltris(triphenylphosphine)rhodium(I) hydride is obtained by the reaction of a solution of RhCl3.3 H2O in alcoholic alkali with aqueous formaldehyde (the carbon monoxide source) and an excess of triphenyl phosphine. The commercial product is a microcrystalline powder with a purity of 97 % (Degussa).
Rhodium, carbonylhydrotris(triphenylphosphine)-, (TB-5-23)-: ACTIVE
Computed Properties
Molecular Weight:918.8
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:9
Exact Mass:918.18165
Monoisotopic Mass:918.18165
Topological Polar Surface Area:1
Heavy Atom Count:60
Formal Charge:-1
Complexity:214
Covalently-Bonded Unit Count:6
Compound Is Canonicalized:Yes
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Carbonyltris(triphenylphosphine)rhodium(I) hydride
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