| Identification | Back Directory | [Name]
Chromocene | [CAS]
1271-24-5 | [Synonyms]
CHROMOCENE
Chromocene,95%
Bis(cyclopentadienyl)chrom
dicyclopentadienyl-chromiu
dicyclopentadienylchromium
bis(cyclopentadiene)chromium
BIS(CYCLOPENTADIENYL)CHROMIUM
di-pi-cyclopentadienyl-chromiu
Di(η5-cyclopentadienyl)chromium
bis(cyclopentadiene)chromium(ii)
Bis(η5-cyclopentadienyl)chromium
Di(cyclopentadienyl)chromium(II)
BIS(CYCLOPENTADIENYL)CHROMIUM(II)
Bis(cyclopentadienyl)chromium ,95%
Bis(eta(5)-cyclopentadienyl)chromium
di((eta-5)-cyclopentadienyl)chromium
BIS(ETHYLCYCLOPENTADIENYL)CHROMIUM98%
Bis(ethylcyclopentadienyl)chromium 98%
bis(cyclopentadienyl)chromium, sublimed
bis(η5-cyclopenta-2,4-dien-1-yl)chromium
chromium,bis(η5-2,4-cyclopentadien-1-yl)-
bis(eta5-cyclopenta-2,4-dien-1-yl)chromium
Bis(cyclopentadienyl)chromium, (Chromocene)
Bis(cyclopentadienyl)chromium 5% In Toluene
Bis(cyclopentadienyl)chromium, sublimed, 97+%
Chromocene, Di(cyclopentadienyl)chromium(II)
BIS-(CYCLOPENTADIENYL)CHROMIUM(II) (CHROMOCENE)
Bis(cyclopentadienyl)chromium, 5% in toluene ,0%
BIS(CYCLOPENTADIENYL)CHROMIUM , SUBLIMED (CHROMOCENE)
Bis(cyclopentadienyl)chroMiuM,95% subliMed (ChroMocene)
Bis(cyclopentadienyl)chromium, 97+%, sublimed (Chromocene)
Bis(cyclopentadienyl)chromium,min.95%,sublimed(Chromocene) | [EINECS(EC#)]
215-036-4 | [Molecular Formula]
C10H10Cr 10* | [MDL Number]
MFCD00013750 | [MOL File]
1271-24-5.mol | [Molecular Weight]
182.18 |
| Hazard Information | Back Directory | [Chemical Properties]
bordeaux crystalline powder | [General Description]
Red needles or reddish-purple solid. | [Air & Water Reactions]
Chromocene is very sensitive to exposure to air and moisture (decomposition is not vigorous). Decomposes in water . | [Reactivity Profile]
Chromocene reacts with water and alcohols. . It's reaction with alcohols produces pyrophoric metal alkoxides (dialkoxychromium and cyclopentadiene). | [Fire Hazard]
Literature sources indicate that Chromocene is flammable. | [Uses]
Provides catalyst for ethylene polymerization. A precursor to other chromium(II) compounds. | [Purification Methods]
Chromocene forms pyrophoric red crystals on sublimation at 50o/0.1mm followed by resublimation at 75-90o/0.1mm. Although it is stable at least to 300o, it is readily oxidised in air, and effervesces slowly in H2O to give cyclopentadiene. All operations should be carried out in a dry box. It decomposes in CCl4 or CS2, and for IR even grinding with nujol, KBr or KI causes some decomposition. [Wilkinson et al. J Inorg Nucl Chem 95 109 1956, Wilkinson J Am Chem Soc 76 209 1954, Beilstein 16 IV 1774.] |
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