61906-04-5

61906-04-5 - Names and Identifiers

Name	Cyclopentadienylhafnium(IV) trichloride
Synonyms	CYCLOPENTADIENYLHAFNIUM TRICHLORIDE cyclopentadienylhafnium(iv) trichloride Cyclopentadienylhafnium(IV) trichloride Trichloro(η5-2,4-cyclopentadien-1-yl) hafnium
CAS	61906-04-5

61906-04-5 - Physico-chemical Properties

Molecular Formula	C5H5Cl3Hf5*
Molar Mass	349.94
Melting Point	125 °C (dec.) (lit.)
Storage Condition	Room Temprature

61906-04-5 - Risk and Safety

Hazard Symbols	T - Toxic
Risk Codes	R45 - May cause cancer R46 - May cause heritable genetic damage R34 - Causes burns R48/20/21/22 - R14 - Reacts violently with water
Safety Description	S53 - Avoid exposure - obtain special instructions before use. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
UN IDs	UN 3261 8/PG 2
WGK Germany	3

61906-04-5 - Introduction

Cyclopentadienylhafnium(IV) trichloride is an organic hafnium compound of the formula CpHfCl3 (wherein Cp represents a cyclopentadienyl group). The following is a detailed description of the nature, use, preparation and safety information of Cyclopentadienylhafnium(IV) trichloride:

Nature:
1. Appearance: Cyclopentadienylhafnium(IV) trichloride is a colorless crystal or white solid.
2. Melting point: The melting point of Cyclopentadienylhafnium(IV) trichloride is about 215-220°C.
3. Solubility: It is soluble in some organic solvents (such as ether, benzene and dimethylformamide), but has low solubility in water.

Use:
1. Catalyst: Cyclopentadienylhafnium(IV) trichloride can be used as a catalyst for many organic synthesis reactions, such as polymerization reactions, cyclization reactions of olefins or alcohols, etc.
2. Diffusion barrier material: Cyclopentadienylhafnium(IV) is trichloride used as a diffusion barrier material in electronic devices to improve the performance and stability of the device.

Preparation Method:
Cyclopentadienylhafnium(IV) trichloride are generally synthesized by the following steps:
1. First, the hafnium salt reacts with cyclopentadiene bromide to generate the corresponding cyclopentadienyl hafnium bromide.
2. Next, the obtained cyclopentadienyl hafnium bromide is reacted with aluminum chloride to release Br and leave, thereby producing a Cyclopentadienylhafnium(IV) trichloride.

Safety Information:
1. Cyclopentadienylhafnium(IV) trichloride are usually relatively safe under correct operation.
2. As an organic hafnium compound, it may pose certain risks to the human body. Therefore, proper laboratory safety procedures should be followed during handling and handling.
3. Cyclopentadienylhafnium(IV) trichloride should be stored in dry, sealed containers, away from moisture and ignition sources.

It is important to note that all chemicals should be used with caution and follow proper laboratory procedures, including the wearing of appropriate personal protective equipment and ventilation equipment. It is strongly recommended to conduct a detailed safety assessment and consult a professional chemist before conducting relevant experiments.

Last Update：2024-04-10 22:29:15