Zirconocene dichloride
Bis(cyclopentadienyl)zirconium dichloride
CAS: 1291-32-3
Molecular Formula: C10H10Cl2Zr
Zirconocene dichloride - Names and Identifiers
| Name | Bis(cyclopentadienyl)zirconium dichloride |
| Synonyms | dichlorozirconium cyclopenta-1,3-diene ZIRCONOCENE DICHLORIDE Zirconocene dichloride DICHLORODICYCLOPENTADIENYLZIRCONIUM DICYCLOPENTADIENYLZIRCONIUM DICHLORIDE Dichlorobis(cyclopentadienyl)zirconium BIS(CYCLOPENTADIENYL)ZIRCONIUMICHLORIDE bis(η-cyclopentadienyl)zirconiumchloride bis(3-cyclopentadienyl)dichlorozirconium bis(η-cyclopentadienyl)-zirconiumchloride Bis(cyclopentadienyl)zirconium dichloride BIS(CYCLOPENTADIENYL)ZIRCONIUM DICHLORIDE BIS(CYCLOPENTADIENYL)ZIRCONIUM(IV) DICHLORIDE dichlorozirconium(2+) dicyclopenta-2,4-dienide dicyclopenta-1,3-dien-1-ylzirconium(2+) dichloride Bis(cyclopentadienyl)zirconium dichloride~Dichlorobis(cyclopentadienyl)zirconium |
| CAS | 1291-32-3 |
| EINECS | 215-066-8 |
| InChI | InChI=1/2C5H5.2ClH.Zr/c2*1-2-4-5-3-1;;;/h2*1-3H,4H2;2*1H;/p-2/rC10H10Zr.2ClH/c1-2-6-9(5-1)11-10-7-3-4-8-10;;/h1-5,7H,6,8H2;2*1H/p-2 |
Zirconocene dichloride - Physico-chemical Properties
| Molecular Formula | C10H10Cl2Zr |
| Molar Mass | 292.32 |
| Melting Point | 242-245°C(lit.) |
| Boling Point | 124-125°C/15mm |
| Flash Point | 124-125°C/15mm |
| Water Solubility | hydrolysis |
| Appearance | White to brown powder or crystal |
| Color | white to off-white |
| Exposure Limit | ACGIH: TWA 5 mg/m3; STEL 10 mg/m3NIOSH: IDLH 25 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3 |
| Storage Condition | Keep in dark place,Inert atmosphere,2-8°C |
| Sensitive | Air & Moisture Sensitive |
| MDL | MFCD00003726 |
| Use | Used in the synthesis of many early transition metal complexes and organometallic compounds |
Zirconocene dichloride - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN3261 |
| WGK Germany | 3 |
| RTECS | ZH7525000 |
| FLUKA BRAND F CODES | 8-10-21 |
| TSCA | Yes |
| HS Code | 29319090 |
| Hazard Class | 8 |
| Packing Group | II |
Zirconocene dichloride - Nature
| melting point | 242-245 °C(lit.) |
| boiling point | 124-125°C/15mm |
| flash point | 124-125°C/15mm |
| storage conditions | Keep in dark place,Inert atmosphere,2-8°C |
| morphology | Powder |
| color | white to off-white |
| water solubility | hydrolysis |
| sensitivity | Air & Moisture Sensitive |
| hydrolysis sensitivity | 4: no reaction with water under neutral conditions |
| NIST chemical information | Bis(cyclopentadienyl)zirconium dichloride(1291-32-3) |
| EPA chemical information | Zirconocene dichloride (1291-32-3) |
Last Update：2024-04-10 22:29:15
Zirconocene dichloride - Introduction
zirconium dichloride is the main catalyst of Kaminsky catalytic system. this kind of catalyst has high activity and isotacrometric in catalyzing olefin high polymerization, and there are also reports in the literature on catalyzing olefin high polymerization. Dichlorocene zirconium is also the main component of Negishi reagents, which can be used for intramolecular dienes and intermolecular alkynes and alkenes.
Last Update：2024-04-10 22:29:15
Zirconocene dichloride - Security information
| dangerous goods mark | Xi |
| hazard category code | 36/37/38-34 |
| safety instructions | 26-36-45-36/37/39 |
| dangerous goods transport number | UN3261 |
| WGK Germany | 3 |
| RTECS number | ZH7525000 |
| F | 8-10-21 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | II |
| customs code | 29319090 |
Last Update：2024-04-10 22:29:15
Zirconocene dichloride - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| introduction | zirconium dichloride is the main catalyst of Kaminsky catalytic system. this kind of catalyst has high activity and isotacrometric in catalyzing olefin polymerization, and there are also reports in the literature on catalyzing olefin polymerization. Dichlorocene zirconium is also the main component of the Negishi reagent, which can be used for the ring-forming reaction of intramolecular dienes and the ring-forming reaction of intermolecular alkynes and alkenes. |
| application | zirconium dichloride (Cp2ZrCl2) can be used to catalyze the hydrogenation reaction of unsaturated polymers, and can be used in laboratory research and development and chemical medicine research and development. |
| Preparation | Step 1: Preparation of sodium cyclopentadienyl under pure nitrogen protection, thermal cracking of biscyclopentadiene at 180°C. The cyclopentadiene monomers at 40~42 ℃ were collected in an ice-salt bath cooled Schlinke bottle for later use. Put a stirring magnet in a 500m L three-mouth bottle, install a constant pressure drop funnel and a reflux condenser, evacuate, and replace it with pure nitrogen for 3 times. Add 4. 6g ( 0. 2mol) sodium wire and 40mLT HF under pure nitrogen protection. Add 25mL( 0.3mol) of fresh cyclopentadiene into a constant pressure dropping funnel filled with 100mLT HF, start an electromagnetic stirrer, drop the above cyclopentadiene solution into a three-mouth bottle within 20min, continue to react for 1.5 h after dropping, and the sodium filament basically disappears to obtain T HF solution of cyclopentadienyl sodium. The sodium cyclopentadienyl solution is light yellow under normal conditions. If there is no pure nitrogen protection, it will be oxidized to a sauce purple solution. Step 2: Preparation of Dichlorocene Zirconium Put a stirring magnet in a 500mL three-mouth bottle, install a constant pressure drip funnel and a reflux condenser, evacuate, and replace it with pure nitrogen three times. 50mL toluene and 22. 3g ( 0. 1mol )ZrCl4 were added into the flask, and the suspension was prepared by stirring. Add the THF solution of cyclopentadienyl sodium to the constant pressure drop funnel, add it dropwise at room temperature, keep the reaction solution slightly boiling, and continue the reaction for 2 hours after the dropwise addition. Under the heating of 50 ℃ oil bath, the solvent is evaporated under reduced pressure to obtain yellow solid. The solids were placed in a cable extractor and extracted with CHCl3. Most of the solvent in the extract is evaporated under reduced pressure, and the solid is precipitated after cooling and filtered. The product was washed with a small amount of CHCl3 and dried in vacuum to obtain 20. 2g of white crystal with 69% yield. |
| Use | Used as an olefin polymerization catalyst, used as a raw material for the preparation of zirconocene, and also used in organic synthesis Used in the synthesis of many early transition metal complexes and organometallic compounds |
Last Update：2024-04-10 22:29:15
Zirconocene dichloride - Use
| application | Zirconium dichloride (Cp2ZrCl2) can be used to catalyze the hydrogenation of unsaturated polymers, and can be used in laboratory research and development and chemical medicine research and development. |
| use | Used as an olefin polymerization catalyst, used as a raw material for the preparation of zirconocene compounds, and also used in organic synthesis |
| use | Used to synthesize many early transition metal complexes and organometallic compounds |
Last Update：2024-04-10 22:29:15
Zirconocene dichloride - Preparation
Step 1: Preparation of sodium cyclopentadienyl
Under the protection of pure nitrogen, bispolycyclopentadiene is thermally cracked at 180 ℃. Collected 40~42 ℃ cyclopentadiene monomer in ice salt bath cooled Xu Linke bottle for later use. Put a stirring magneton in a 500m L three-mouth bottle, install a constant pressure drop funnel and a reflux condenser, evacuate, and replace it with pure nitrogen for 3 times. Add 4. 6g ( 0. 2mol) sodium wire and 40mLT HF under pure nitrogen protection. 25mL( 0.3mol) of fresh cyclopentadiene was added into a constant pressure dropping funnel filled with 100mLT HF, the electromagnetic stirrer was started, the above cyclopentadiene solution was dropped into a three-mouth bottle within 20min, the reaction was continued for 1.5 h after dropping, the sodium filament basically disappeared, and T HF solution of cyclopentadienyl sodium was obtained. The sodium cyclopentadienyl solution is light yellow under normal conditions, and it is oxidized to a soy-purple solution without pure nitrogen protection.
Step 2: Preparation of zirconium dichloride
Put a stirring magneton in a 500mL three-mouth bottle, install a constant pressure drip funnel and reflux condenser, evacuate, and replace it with pure nitrogen 3 times. 50mL toluene and 22. 3g ( 0. 1mol )ZrCl4 were added into the flask, and the suspension was prepared by stirring. Add the THF solution of sodium cyclopentadienyl into the constant pressure dropping funnel, add it dropwise at room temperature, keep the reaction solution slightly boiling, and continue the reaction for 2 hours after the dropwise addition. Under the heating of 50 ℃ oil bath, the solvent is evaporated under decompression to obtain yellow solid. The solids were placed in a cable extractor and extracted with CHCl3. Most of the solvent in the extract is evaporated under reduced pressure, and the solid is precipitated after cooling and filtered. The product was washed with a small amount of CHCl3 and dried in vacuum to obtain 20. 2g of white crystal with 69% yield.
Last Update：2024-04-10 22:29:15
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Used as olefin polymerization catalyst, as the main catalyst of Kaminsky catalyst system; Used as raw material for preparing zirconocene; Used to synthesize many early transition metal complexes and o More
CAS: 1291-32-3
Tel: 0086-13605431940
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Used as olefin polymerization catalyst, as the main catalyst of Kaminsky catalyst system; Used as raw material for preparing zirconocene; Used to synthesize many early transition metal complexes and o More
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Used as olefin polymerization catalyst, as the main catalyst of Kaminsky catalyst system; Used as raw material for preparing zirconocene; Used to synthesize many early transition metal complexes and o More
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Used as olefin polymerization catalyst, as the main catalyst of Kaminsky catalyst system; Used as raw material for preparing zirconocene; Used to synthesize many early transition metal complexes and o More
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CAS: 1291-32-3
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Descriptions:
Used as olefin polymerization catalyst, as the main catalyst of Kaminsky catalyst system; Used as raw material for preparing zirconocene; Used to synthesize many early transition metal complexes and o More
CAS: 1291-32-3
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
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Descriptions:
Used as olefin polymerization catalyst, as the main catalyst of Kaminsky catalyst system; Used as raw material for preparing zirconocene; Used to synthesize many early transition metal complexes and o More
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Descriptions:
Used as olefin polymerization catalyst, as the main catalyst of Kaminsky catalyst system; Used as raw material for preparing zirconocene; Used to synthesize many early transition metal complexes and o More
Product Name: Bis(cyclopentadienyl)zirconium dichloride Request for quotation
CAS: 1291-32-3
Tel: 0086-13605431940
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QQ: 56860987
Wechat: 13605431940
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Descriptions:
Used as olefin polymerization catalyst, as the main catalyst of Kaminsky catalyst system; Used as raw material for preparing zirconocene; Used to synthesize many early transition metal complexes and o More
CAS: 1291-32-3
Tel: 0086-13605431940
Email: xuli678323@126.com
Mobile: +86-13605431940
QQ: 56860987
Wechat: 13605431940
WhatsApp: 13605431940
Descriptions:
Used as olefin polymerization catalyst, as the main catalyst of Kaminsky catalyst system; Used as raw material for preparing zirconocene; Used to synthesize many early transition metal complexes and o More
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