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667943

Sigma-Aldrich

Hafnium(IV) n-butoxide

Synonym(s):

n-Butoxy hafnium, Tetrabutoxyhafnium(IV)

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About This Item

Empirical Formula (Hill Notation):
C16H36HfO4
CAS Number:
22411-22-9
Molecular Weight:
470.94
MDL number:
MFCD00236545
UNSPSC Code:
12352103
PubChem Substance ID:
24884949
NACRES:
NA.23

form

liquid

reaction suitability

core: hafnium
reagent type: catalyst

density

1.2376 g/mL

SMILES string

CCCCO[Hf](OCCCC)(OCCCC)OCCCC

InChI

1S/4C4H9O.Hf/c4*1-2-3-4-5;/h4*2-4H2,1H3;/q4*-1;+4

InChI key

LTBRWBUKPWVGFA-UHFFFAOYSA-N

General description

Hafnium(IV) n-butoxide is an organometal oxide widely used in the preparation of Hafnium nanomaterials and as a catalyst in polymerization reactions.

Application

Hafnium(IV) n-butoxide can be used:
  • As a sol-gel precursor to synthesize hafnium oxide(HfO2) ultra-thin films with enhanced dielectric properties.
  • As a transesterification catalyst for the synthesis of poly(butylene succinate) (PBS).
  • As a precursor to fabricate BaHfO3(Barium hafnate) perovskitenanocrystals for various electronic applications.

Signal Word

Danger

Hazard Statements

H226,H317,H318

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 3 - Skin Sens. 1

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

95.0 °F

Flash Point(C)

35 °C

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sol?Gel Fabrication of Dielectric HfO2 Nano-Films; Formation of Uniform, Void-Free Layers and Their Superior Electrical Properties
Yoshitaka Aoki, et al.
Chemistry of Materials, 17, 450-458 (2005)
Synthesis and properties of poly (butylene succinate): Efficiency of different transesterification catalysts
Nicolas Jacquel, et al.
Journal of Polymer Science Part A: Polymer Chemistry, 49 , 5301-5312 (2011)
Hybrid approach to obtain high-quality BaMO3 perovskite nanocrystals
Natalia Chamorro, et al.
Royal Society of Chemistry Advances, 10, 28872-28878 (2020)

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