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172220-21-2

((CH3)5C5)Rh(P(CH3)3)(Br)(C6H3(Si(CH3)3)2) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 172220-21-2 Structure

  • Basic information

    1. Product Name: ((CH3)5C5)Rh(P(CH3)3)(Br)(C6H3(Si(CH3)3)2)
    2. Synonyms:
    3. CAS NO:172220-21-2
    4. Molecular Formula:
    5. Molecular Weight: 615.587
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 172220-21-2.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: ((CH3)5C5)Rh(P(CH3)3)(Br)(C6H3(Si(CH3)3)2)(CAS DataBase Reference)
    10. NIST Chemistry Reference: ((CH3)5C5)Rh(P(CH3)3)(Br)(C6H3(Si(CH3)3)2)(172220-21-2)
    11. EPA Substance Registry System: ((CH3)5C5)Rh(P(CH3)3)(Br)(C6H3(Si(CH3)3)2)(172220-21-2)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 172220-21-2(Hazardous Substances Data)

172220-21-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 172220-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,2,2 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 172220-21:
(8*1)+(7*7)+(6*2)+(5*2)+(4*2)+(3*0)+(2*2)+(1*1)=92
92 % 10 = 2
So 172220-21-2 is a valid CAS Registry Number.

172220-21-2Downstream Products

172220-21-2Relevant articles and documents

Substituent effects on reductive elimination from disubstituted aryl hydride complexes: Mechanistic and thermodynamic considerations

Selmeczy, Anthony D.,Jones, William D.,Osman, Robert,Perutz, Robin N.

, p. 5677 - 5685 (1995)

The complexes (C5Me5)Rh(PMe3)(3,5-C6H 3R2)H for R = C(CH3)3, CH(CH3)2, Si(CH3)3, CH3, and CF3 (1c-g) have been prepared both by irradiation of (C5Me5)Rh(PMe3)(C2H4) in neat arene and by thermolysis of (C5Me5)Rh(PMe3)(Ph)H (1a) in neat arene. Quenching the hydride species with CHBr3 allowed isolation of the corresponding bromide complexes (C5Me5)Rh(PMe3)(3,5-C6H 3R2)Br (2c-g). Rates of reductive elimination of arene for the series of disubstituted aryl hydride complexes were measured at various temperatures and activation parameters ΔH? and ΔS? obtained and compared with those of (C5Me5)-Rh(PMe3)(Ph)H (1a) and (C5Me5)Rh(PMe3)(tolyl)H (1b). ΔH? values range from +35 to +18 kcal/mol, and ΔS? values range from +16.4 to -19 cal/mol K. Laser flash photolysis experiments using (C5Me5)Rh(PMe3)(C2H4) in neat toluene at various temperatures allowed the determination of activation parameters ΔH? and ΔS? for intramolecular C-H bond oxidative addition of the η2-arene complex 3b. Equilibrium measurements allowed determination of ΔG° values for several of the disubstituted aryl hydride complexes versus the parent phenyl hydride complex. A kinetic isotope effect of kH/kD = 1.0 ± 0.1 was measured for the reaction of (C5Me5)Rh(PMe3)(C2H4) with a 1:1 mixture of 5-deuterio-1,3-di-tert-butylbenzene and 1,3-di-tert-butylbenzene. The equilibrium isotope effect for the same reaction Keq = 2.27(1) favors the aryl hydride and free deuterated arene.

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