12078-25-0 Usage
Reactions
Volatile cobalt complex used for the deposition of cobalt and cobalt oxide films.
Intramolecular cobalt-catalyzed [2+2+2] cycloaddition of O-protected diyne-cycanohydrins.
Catalyst used for the dehydrative direct CH allylation with allylic alcohols.
Chemical Properties
dark red to brown liquid
Uses
Different sources of media describe the Uses of 12078-25-0 differently. You can refer to the following data:
1. Dicarbonylcyclopentadienylcobalt Catalyst for the cyclotrimerization of alkynes. It mediates the [2+2+2]-cyclization of allenediynes to tricyclic systems. catalyzes the formation of pyridines from a mixture of alkynes and nitriles.
2. Mediates the [2+2+2]-cyclization of allenediynes to tricyclic systems.
Purification Methods
Best distilled in an atmosphere of CO in a vacuum. The red brown liquid decomposes slightly on distillation even in a vacuum to liberate some CO. Operations should be performed in an efficient fume cupboard. It is soluble in organic solvents and stable in air but decomposes slowly in sunlight and rapidly under UV. [Piper et al. J Inorg Nucl Chem 1 165 1955, Beilstein 16 IV 1827.] TOXIC.
Check Digit Verification of cas no
The CAS Registry Mumber 12078-25-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,0,7 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 12078-25:
(7*1)+(6*2)+(5*0)+(4*7)+(3*8)+(2*2)+(1*5)=80
80 % 10 = 0
So 12078-25-0 is a valid CAS Registry Number.
12078-25-0Relevant articles and documents
METHOD OF SELECTIVELY FORMING COBALT METAL LAYER BY USING COBALT COMPOUND, AND METHOD OF FABRICATING SEMICONDUCTOR DEVICE BY USING COBALT COMPOUND
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Paragraph 0157-0161, (2021/02/05)
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
Sisak, Attila,Halmos, Erzsébet
, p. 1817 - 1824 (2008/02/04)
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
Facial coordination of cyclooctatetraene to a Co2Ni triangle in a heterometallic trinuclear cluster complex
Wadepohl, Hubert,Gebert, Stefan,Merkel, Rüdiger,Pritzkow, Hans
, p. 142 - 147 (2007/10/03)
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/