Pentamethylcyclopentadienylhafnium trichloride

Base Information

• Chemical Name: Pentamethylcyclopentadienylhafnium trichloride
• CAS No.: 75181-08-7
• Molecular Formula: C10H15Cl3Hf
• Molecular Weight: 420.078
• Hs Code.: 29310099
• Mol file: 75181-08-7.mol

Synonyms:Pentamethylcyclopentadienylhafniumtrichloride;Trichloro(pentamethylcyclopentadienyl)hafnium;Trichloro(h5-pentamethylcyclopentadienyl)hafnium;

Chemical Property of Pentamethylcyclopentadienylhafnium trichloride

Chemical Property:

• Appearance/Colour: purple crystals crystals or crystalline powder
• Melting Point: 170-172 ºC (dec.)
• PSA: 0.00000
• LogP: 5.04050
• Sensitive.: Moisture Sensitive

Purity/Quality:

98%,99%, ^*data from raw suppliers

Pentamethylcyclopentadienylhafnium trichloride, min. 98% ^*data from reagent suppliers

Safty Information:

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36-37/39

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

Technology Process of Pentamethylcyclopentadienylhafnium trichloride

There total 2 articles about Pentamethylcyclopentadienylhafnium trichloride which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 99.0%

pentamethylcyclopentadienyltrimethylsilane (136990-69-7) + hafnium tetrachloride (13499-05-3) → chloro-trimethyl-silane (75-77-4) + pentamethylcyclopentadienylhafnium trichloride (75181-08-7)

Guidance literature:

In n-heptane; Addn. of C5(CH3)5Si(CH3)3 to suspension of HfCl4 in heptane (N2), slowly warming (60 °C), stirring (4 h), cooling.; Filtration, washed (hexane), dried (vacuum), elem. anal.;

DOI:10.1016/0022-328X(88)80551-5

Reference yield:

tetrakis{(pentamethylcyclopentadienyl)hafnium dihydride chloride}*(toluene)0.5 (113180-42-0) → pentamethylcyclopentadienylhafnium trichloride (75181-08-7) + hydrogen (1333-74-0)

Guidance literature:

With HCl; In benzene; An excess of HCl reacts with a suspension of tetramer Hf-complex in benzene at room temp. under N2.; The bright yellow suspension turnes off-white, after 0.5 h the gases are collected and passed through a liquid-N2-cooled trap, removal of the volatiles, residue is investigated by IR.;

DOI:10.1021/om00095a003

Reference yield: 91.0%

pentamethylcyclopentadienylhafnium trichloride (75181-08-7) + 2Li(1+)*2(C6H5)4P2N4S(SCH3)(1-)*2C4H8O=[Li[(C6H5)4P2N4S(SCH3)(C4H8O)]]2 → (C5(CH3)5)HfCl2((C6H5)4P2N4S(SCH3)) (164082-70-6)

Guidance literature:

In tetrahydrofuran; byproducts: LiCl; inert atmosphere; addn. of soln. of Hf complex (-30°C) to soln. of Li salt (-78°C), warming to 23°C, stirring (2 h); solvent removal (vac.), dissolving in toluene, filtration, solvent removal (vac.), recrystn. (DME/Et2O);

upstream raw materials:

tetrakis{(pentamethylcyclopentadienyl)hafnium dihydride chloride}*(toluene)0.5

pentamethylcyclopentadienyltrimethylsilane

hafnium tetrachloride

Downstream raw materials:

bis(1,2,3,4,5-pentamethylcyclopentadienyl)hafnium dichloride

{(η5-C5Me5)HfCl}3O(OH)3Cl*C7H8

(η5-C5Me5)Hf(NH(2,4,6-Me3C6H2))3

{(η5-C5Me5)Hf(NHPh)(NPh)}2

Refernces

• 1、 Llinas, Gerardo Hidalgo,Mena, Miguel,Palacios, Federico,Royo, Pascual,Serrano, Ricardo. "(C5Me5)SiMe3 as a mild and effective reagent for transfer of the C5Me5 ring: an improved route to monopentamethylcyclopentadienyl trihalides of the group 4 elements". . p. 37 - 40. Retrieved 2007/10/02.