Hafnium(IV) tert-butoxide

Base Information

• Chemical Name: Hafnium(IV) tert-butoxide
• CAS No.: 2172-02-3
• Molecular Formula: C4H10O·1/4Hf
• Molecular Weight: 470.949
• Hs Code.: 2915900090
• European Community (EC) Number: 625-479-9
• Mol file: 2172-02-3.mol

Synonyms:Hafnium(IV) tert-butoxide;2172-02-3;hafnium t-butoxide;hafnium(IV) t-butoxide;Tetra-tert-butoxyhafnium;SCHEMBL792894;MFCD00070458;Hafnium(IV) tert-butoxide, packaged for use in deposition systems;Hafnium(IV) tert-butoxide, 99.99% trace metals basis (purity excludes ~2000 ppm zirconium.)

Chemical Property of Hafnium(IV) tert-butoxide

Chemical Property:

• Appearance/Colour: slightly yellow liquid
• Vapor Pressure: 46mmHg at 25°C
• Melting Point: 2℃
• Refractive Index: n20/D 1.424(lit.)
• Boiling Point: 90 °C at 5 mm Hg(lit.)
• Flash Point: 83 °F
• PSA: 36.92000
• Density: 1.166 g/mL at 25 °C(lit.)
• LogP: 5.06320
• Sensitive.: Moisture Sensitive/Light Sensi
• Solubility.: Soluble in hydrocarbons, reacts with alcohols, ketones, and este
• Hydrogen Bond Donor Count: 4
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 0
• Exact Mass: 476.23922
• Heavy Atom Count: 21
• Complexity: 154

Purity/Quality:

99% ^*data from raw suppliers

Hafnium(IV) t-butoxide (99.9%-Hf, <1.5%-Zr) ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 10-36/37/38
• Safety Statements: 16-26

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: CC(C)(C)O.CC(C)(C)O.CC(C)(C)O.CC(C)(C)O.[Hf]
• Uses: Hafnium tert-butoxide [Hf(OtBu)4] is a mononuclear; volatile; and highly promising precursor for the deposition of HfO2 and other hafnium doped thin films by vapor deposition techniques. The deposited films show high dielectric constant suitable for semiconductor devices.

Technology Process of Hafnium(IV) tert-butoxide

There total 1 articles about Hafnium(IV) tert-butoxide 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:

→ hafnium(IV) tert-butoxide (2172-02-3)

Guidance literature:

Herstellung;

DOI:10.1021/ja01637a080

Reference yield: 84.0%

hafnium(IV) tert-butoxide (2172-02-3) + ((2S,2'S)-((2-hydroxy-5-methyl-1,3-phenylene)bis(methylene))bis(pyrrolidine-1,2-diyl))bis(diphenylmethanol) (320714-00-9) → [Hf((S,S)-2,6-bis[2-(hydroxydiphenylmethyl)-1-pyrrolidinyl-methyl]-4-methylphenol(2-))2]

Guidance literature:

In toluene; at 20 ℃; for 24h; Inert atmosphere; Schlenk technique; Glovebox;

DOI:10.1039/c5dt02267c

Reference yield:

2-(methacryloyloxy)ethyl acetoacetate (21282-97-3,50981-32-3) + hafnium(IV) tert-butoxide (2172-02-3) → 2C4H9O(1-)*Hf(4+)*2C10H13O5(1-) + tert-butyl alcohol (75-65-0)

Guidance literature:

Glovebox;

DOI:10.1002/adfm.201202577

Downstream raw materials:

tert-butyl alcohol