Chemical Properties of Bis(cyclopentadienyl)hafnium dichloride (CAS 12116-66-4)

InChI

InChI=1S/2C5H5.2ClH.Hf/c2*1-2-4-5-3-1;;;/h2*1-5H;2*1H;/q;;;;+2/p-2

InChI Key

UHCOEQZUSAFLHQ-UHFFFAOYSA-L

Formula

C10H10Cl2Hf

SMILES

Cl[Hf](Cl)(C1C=CC=C1)C1C=CC=C1

Molecular Weight¹

379.58

CAS

12116-66-4

Other Names

• Hafnocene dichloride
• bis(«eta»5-Cyclopentadienyl)hafnium dichloride
• Hafnium, dichlorobis(«eta»(5)-2,4-cyclopentadien-1-yl)-
• Dichlorobis(«eta»-cyclopentadienyl)hafnium
• Dichlorodi-«pi»-cyclopentadienylhafnium
• Dichlorodicyclopentadienylhafnium
• Dicyclopentadienylhafnium dichloride
• Hafnium dicyclopentadiene dichloride
• Hafnium, dichlorodi-«pi»-cyclopentadienyl-
• Bis(cyclopentadienyl)hafnium(IV) dichloride
• NSC 102788
• dichlorobis(«eta»5-cyclopenta-2,4-dien-1-yl)hafnium

• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_subH° : Enthalpy of sublimation at standard conditions (kJ/mol).
• Δ_subH : Enthalpy of sublimation at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔcH°solid	-5991.50 ± 2.50	kJ/mol	NIST
ΔfH°gas	-428.40 ± 4.30	kJ/mol	NIST
ΔfH°solid	-535.10 ± 3.80	kJ/mol	NIST
ΔsubH°	[106.70; 110.20]	kJ/mol
ΔsubH°	107.30 ± 2.40	kJ/mol	NIST
ΔsubH°	110.20 ± 2.90	kJ/mol	NIST
ΔsubH°	106.70 ± 2.10	kJ/mol	NIST
ΔsubH°	106.70 ± 2.10	kJ/mol	NIST
IE	[8.87; 8.90]	eV
IE	8.90 ± 0.10	eV	NIST
IE	8.87 ± 0.05	eV	NIST

Temperature Dependent Properties

Similar Compounds

Find more compounds similar to Bis(cyclopentadienyl)hafnium dichloride.

Sources

• NIST Webbook

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