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245259

Sigma-Aldrich

Dicarbonylcyclopentadienyl cobalt(I)

technical grade

Synonym(s):

CpCo(CO)2, Cobalt dicarbonyl cyclopentadiene, Cyclopentadienyl cobalt(I) dicarbonyl, Cyclopentadienylcobalt dicarbonyl, Cyclopentadienyldicarbonylcobalt

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About This Item

Linear Formula:
C5H5Co(CO)2
CAS Number:
12078-25-0
Molecular Weight:
180.05
EC Number:
235-139-8
MDL number:
MFCD00009589
UNSPSC Code:
12161600
PubChem Substance ID:
24854737

grade

technical grade

Quality Level

100

form

liquid

reaction suitability

core: cobalt
reagent type: catalyst

bp

139-140 °C/710 mmHg (lit.)

storage temp.

2-8°C

SMILES string

[Co].[C-]#[O+].[C-]#[O+].[CH]1[CH][CH][CH][CH]1

InChI

1S/C5H5.2CO.Co/c1-2-4-5-3-1;2*1-2;/h1-5H;;;

InChI key

HUSLGLMTBHLWKG-UHFFFAOYSA-N

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Application

Catalyst for the cyclotrimerization of alkynes.
Mediates the [2+2+2]-cyclization of allenediynes to tricyclic systems.

accessory

Product No.
Description
Pricing

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Carc. 2 - Flam. Liq. 3 - Muta. 2 - Repr. 2 - Resp. Sens. 1 - Skin Sens. 1

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Tetrahedron, 62, 10582-10582 (2006)
Room Temperature CpCo-Mediated Cyclization of alpha,delta,omega-Enediynes to Rearranging Strained Tricylic Dienes. Some Observations of Kinetic versus Thermodynamic Control.
J. Kevin Cammack et al.
The Journal of organic chemistry, 61(14), 4798-4800 (1996-07-12)
Dmitri V Konarev et al.
Dalton transactions (Cambridge, England : 2003), 49(46), 16821-16829 (2020-11-13)
The reduction of copper(ii) octafluoro- {CuII(F8Pc)} and hexadecafluorophthalocyanines {CuII(F16Pc)} by NaCpCo(CO)2 in the presence of cryptand[2.2.2] yields new crystalline {cryptand(Na+)}[CuII(F8Pc)˙3-]-·2C6H4Cl2 (1) and {cryptand(Na+)}2[CuII(F16Pc)4-]2-·C6H14 (2) salts. Together with two previously characterized salts of CuII(FxPc) (x = 8 and 16), this allows

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