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CAS 85959-83-7

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Bis(pentamethylcyclopentadienyl)hafnium dichloride

Description:
Bis(pentamethylcyclopentadienyl)hafnium dichloride, commonly referred to as bis(pentamethylcyclopentadienyl)hafnium(IV) dichloride, is a coordination compound featuring hafnium in a +4 oxidation state. This compound is characterized by its two pentamethylcyclopentadienyl (Cp*) ligands, which are bulky and electron-rich, providing significant steric and electronic effects. The presence of two chloride ions contributes to its dichloride designation. Typically, this compound appears as a solid and is soluble in organic solvents, making it useful in various applications, particularly in organometallic chemistry and materials science. Its structure allows for the formation of hafnium-based thin films, which are valuable in semiconductor manufacturing. The compound is also of interest in catalysis and as a precursor for hafnium oxide in high-k dielectric materials. Safety precautions should be observed when handling this compound, as it may pose health risks due to its chemical reactivity and potential toxicity.
Formula:C20H30Cl2Hf
InChI:InChI=1/2C10H15.2ClH.Hf/c2*1-7-6-10(4,5)9(3)8(7)2;;;/h2*1-5H3;2*1H;/q;;;;+2/p-2/rC20H30Hf.2ClH/c1-11-13(3)17(19(7,8)15(11)5)21-18-14(4)12(2)16(6)20(18,9)10;;/h1-10H3;2*1H/q+2;;/p-2
SMILES:CC1=CC(C)(C)C(=C1C)C.CC1=CC(C)(C)C(=C1C)C.Cl.Cl.[Hf]
Synonyms:
  • Bis(2,3,4,5,5-Pentamethylcyclopenta-1,3-Dien-1-Yl)Hafnium(2+) Dichloride
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