12078-23-8

Basic information

• Product Name: Dicarbonylcyclopentadienylcobalt
• CAS NO: 12078-23-8
• Molecular Formula: C7H7CoO2
• Molecular Weight: 0
• Mol File: 12078-23-8.mol
• Article Data: 54

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Dicarbonylcyclopentadienylcobalt(CAS DataBase Reference)
• NIST Chemistry Reference: Dicarbonylcyclopentadienylcobalt(12078-23-8)
• EPA Substance Registry System: Dicarbonylcyclopentadienylcobalt(12078-23-8)

Safety Data

• Hazardous Substances Data: 12078-23-8(Hazardous Substances Data)

Upstream product

• 113087-75-5 (η5-cyclopentadienyl)(carbonyl){(carbomethoxy)4-cobaltacyclopentene} 
• 53559-30-1 (η5-cyclopentadienyl)(triphenylphosphine)(2-phenyl-3,4,5-tricarbomethoxy-cobaltacyclopentene) 
• 113158-74-0 (η5-cyclopentadienyl)cobalt{(phenyl)(dicarbomethoxy)(OCH3)-oxanorbornadiene} 
• 201230-82-2 carbon monoxide 
• 77-73-6 bi(cyclopentadiene) 
• 1120-43-0 cobalt(II) oleate 
• 12264-05-0 (acetylene)hexacarbonyldicobalt 
• 121-46-0 bicyclo[2.2.1]hepta-2,5-diene 
• 12154-91-5 (phenylacetylene)hexacarbonyldicobalt 
• 12184-35-9 (η5-cyclopentadienyl)-η4-cycloocta-1,5-dienecobalt(I) 
• 32800-45-6 carbonyl(cyclopentadienyl)(dimethylphenylphosphane)cobalt 
• 32824-34-3 (C₅H₅)(P(CH₃)(C₆H₅)2)CoCO 
• 15226-74-1 dicobalt octacarbonyl 
• 2726-34-3 cyclopentadienyltrimethyltin 

Downstream Products

• 43157-54-6 Co(η(5)-cyclopentadienyl)(η(4)-C4H2(C6H5)2CO) 
• 12119-11-8 (η5-cyclopentadienyl)cobalt(η4-C4Ph4CO) 
• 38117-54-3 cyclopentadienyl iron(II) dicarbonyl dimer 
• 98689-81-7 Fe₂Co⁽¹⁺⁾*3C₅H₅^(1-)*CO*2NO⁽¹⁺⁾=Fe₂Co(C₅H₅)3(CO)(NO)2 
• 79035-72-6 1,2,4-triphenyl-3-(o-phenylethynyl-phenyl)biphenylene 
• 79042-91-4 (C₅H₅Co)2((C₆H₅)2C₄(C₆H₄)2C₄(C₆H₅)2) 

Relevant articles and documents

UEBERGANGSMETALL-METHYLEN-KOMPLEXE. LII. SYNTHESEKONZEPTE ZUM AUFBAU HETERODINUCLEARER METALL-METALL-MEHRFACHBINDUNGEN

Novel heterodinuclear metal-metal multiple bonds are accessible by simple high-yield metal-metal coupling reactions: the cobalt-iridium complex (η5-C5H5)Co(μ-CO)2Ir(η5-C5Me5) (Me=CH3; 3) is formed as the main product from the reactio

Facial coordination of cyclooctatetraene to a Co2Ni triangle in a heterometallic trinuclear cluster complex

Reaction of [(η-C5H5)NiCo3(CO)9] (5) with 1,3,5,7-cyclooctatetraene or 1,4-(SiMe3)2C8H6, respectively, yields the complexes [Co2Ni(CO)6(μ3/

Synthesis, Crystal and Molecular Structures, and Reactions of a Benzodicobaltacyclohexene, a Thermally Derived Mononuclear o-Xylylene Complex, and an Unsymmetrical Phosphine-Derived Dinuclear Complex

Alkylation of Na2 (Cp = η5-cyclopentadienyl) with α,α'-dibromo-o-xylene gives bis(μ-carbonyl)(μ-o-xylylene)bis5-cyclopentadienyl)cobalt>(Co-Co) (1), the first dimetallacycloxene.The X-ray crystal structure of the derivative analogue 8 hyving η5-methylcyclopentadienyl rings was solved (2371 reflections; R = 2.64percent; space group P; a = 9.1045 (11), b = 9.5465 (13), c = 11.8147 (16) Angstroem; α = 83.730 (11) deg; β = 81.414 (10) deg, γ = 63.392 (10) deg; Z = 2, dcalcd = 1.598 g/cm3) and shows a six-membered ring containing two cobalt atoms with a Co-Co ''single bond'' length of 2.438 Angstroem; the dimetallacycle ring adopts a boat conformation with a folding angle of 58.5 deg.Compound 1 undergoes slow decomposition at room temperature in solution to give CpCo(CO)2 (10) and new complex (η5-cyclopentadienyl)(η4-o-xylylene)cobalt (11).The crystal structure of 11 (1370 reflections; R = 3.90percent; space group Pbca; a = 7.6286 (40), b = 11.6094 (16), c = 23.7196 (24) Angstroem; Z = 8, dcalcd = 1.443 g/cm3) is that of a diene complex in which the o-xylylene ligand consists of a delocalized butadiene portion and a nonaromatic six-membered carbocycle.Photolysis of 1 also leads to 10 and 11 as primary products.Carbonylation of mononuclear o-xylylene complex 11 at 70 deg C gives 10 and the CO insertion product 2-indanone (13).Carbonylation of 1 yields 10 and dimers 14 and 15 of free o-xylylene (4).Reactions of 1 with phosphines and phosphites (L) also give 14 and 15 as well as CpCo(CO)L (16), but the unstable dinuclear intermediate 17, proposed to be Cp2Co2(μCO)2(L), was detected in the phosphine reactions.This material can also be prepared from the dinuclear compound 2 (3) and phosphines.Compound 17 (L = PMe3) decomposes via parallel first and second-order pathways in the presence of PMe3, while 17 (L = PPh3) decomposes primarily via a first-order pathway in the presence of PPh3.The X-ray crystal structure of an analogue of 17, (MeCp)2Co2(μ-CO)2(PPhMe2) (20), was determined (2664 reflections; R = 2.76percent; space group P21/c; a = 10.0035 (14), b = 14.0816 (13), c = 14.4761 (18) Angstroem; β = 92.042 (11) deg; Z = 4, dcalcd = 1.533 g/cm3) and indicates the presence of a Co-Co ''single bond'' (2.416 Angstroem); the phosphine is bound to one of the cobalt atoms, and the two carbonyls are semibridging, with the closer contacts being to the cobalt atom not bound to phosphine.

Late Metal Metallacyclobutene Chemistry: Conversion to η4-Vinylketene, η4-Vinylketenimine, and Furan Products

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Cobalt isocyanide complexes

The synthesis and properties of mono and bis-isocyanide complexes of cobalt(I), CpCoLL', are described, together with migration reactions involving the isocyanide and the cyclopentadienyl ligand.

METHOD OF SELECTIVELY FORMING COBALT METAL LAYER BY USING COBALT COMPOUND, AND METHOD OF FABRICATING SEMICONDUCTOR DEVICE BY USING COBALT COMPOUND

A method of selectively forming a cobalt metal layer includes supplying a cobalt compound represented by Chemical Formula (1) onto a substrate that includes a wiring line of a late transition metal and an isolation film adjacent thereto, and supplying a reducing gas to selectively form a cobalt metal layer on the wiring line,

Reactions of early-late heterobimetallics with oxiranes: New examples for cooperative reactivity

In the reaction of oxiranes and cobalt-containing early-late heterobimetallic (ELHB) compounds isolated or prepared in situ, acyl-cobalt complexes, Y3MEOCHRCH2C(O)Co(CO)4 (1, ME = Ti, Zr, Hf), were ob