Bis(indenyl)halfnium(IV) dichloride

CAS 49596-05-6(C9H7)2HfCl2Catalysis & Inorganic

Bis(indenyl)hafnium(IV) dichloride (CAS: 49596-05-6) is an organohafnium compound with the linear formula (C₉H₇)₂HfCl₂ and a molecular weight of 479.70. It serves as a crucial catalyst and cocatalyst in various chemical transformations. Key applications include its use in dehydrogenation reactions, CH activation, metalation of Bronsted acids, and as a chain termination agent in ethene polymerization, highlighting its importance in synthetic chemistry and catalysis.

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Bis(indenyl)halfnium(IV) dichloride ((C9H7)2HfCl2) — chemical structure, CAS 49596-05-6; Chemistry, fine chemical supplied by Tech Serve Solutions

Chemical SynthesisHafnium

01 /Applications

Cocatalyst in Dehydrogenation

Bis(indenyl)hafnium(IV) dichloride acts as a cocatalyst in the dehydrogenation of cyclooctane, facilitating the removal of hydrogen. This application is vital in synthetic organic chemistry for the production of specific cyclic compounds.

Catalyst for CH Activation

This hafnium compound catalyzes CH activation reactions, which are fundamental processes for functionalizing otherwise inert carbon-hydrogen bonds. Such reactions are key to developing more efficient synthetic routes.

Metalation of Bronsted Acids

It functions as a catalyst for the metalation of Bronsted acids, enabling the formation of new carbon-metal bonds. This capability is important for subsequent synthetic transformations and complex molecule construction.

Chain Termination in Ethene Polymerization

Bis(indenyl)hafnium(IV) dichloride is employed as a catalyst for chain termination reactions during ethene polymerization. This role helps control polymer chain length and molecular weight distribution.

02 /Properties

Molecular weight	479.70
Linear formula	(C9H7)2HfCl2
Application	• Cocatalyst in dehydrogenation of cyclooctane1Catalyst for:• CH activation reactions2• Metalation of Bronsted acids3• Chain termination reactions in ethene polymerization4
Melting point	211-215 °C (dec.)(lit.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Protective equipment	Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Transport (UN / ADR)	UN 3261 8 / PGII
Water hazard class (WGK, DE)	3
Hazard codes (EU)	C
Risk statements (R)	34
Safety statements (S)	26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

49596-05-6

MDL number

MFCD00799513

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Bis(indenyl)hafnium(IV) dichloride used for?

Bis(indenyl)hafnium(IV) dichloride is used as a cocatalyst in dehydrogenation, a catalyst for CH activation reactions, metalation of Bronsted acids, and as a chain termination agent in ethene polymerization.

What is the CAS number and formula for Bis(indenyl)hafnium(IV) dichloride?

The CAS number is 49596-05-6 and the linear formula is (C₉H₇)₂HfCl₂.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Bis(indenyl)hafnium(IV) dichloride with a stated melting point of 211-215 °C (dec.). TSS does not represent this product as USP, BP, EP, or other pharmacopoeial grades.

How should Bis(indenyl)hafnium(IV) dichloride be handled safely?

Bis(indenyl)hafnium(IV) dichloride is a Danger substance (H314 - Causes severe skin burns and eye damage). Appropriate personal protective equipment, including eyeshields, faceshields, gloves, and suitable respiratory protection, must be used. Handle in a well-ventilated area and follow all safety precautions outlined in the Safety Data Sheet.

Is Bis(indenyl)hafnium(IV) dichloride packed and shipped internationally?

Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. Bis(indenyl)hafnium(IV) dichloride is shipped internationally, adhering to all relevant transport regulations including UN 3261, 8/PGII.

How can I request a quote or sample?

To request a quote or sample for Bis(indenyl)hafnium(IV) dichloride, please contact our sales team through the website or by phone, providing your contact details and the quantity required.