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Cyclopentadienylcobalt dicarbonyl

Chemical compound / From Wikipedia, the free encyclopedia

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Cyclopentadienylcobalt dicarbonyl is an organocobalt compound with formula (C5H5)Co(CO)2, abbreviated CpCo(CO)2. It is an example of a half-sandwich complex. It is a dark red air sensitive liquid. This compound features one cyclopentadienyl ring that is bound in an η5-manner and two carbonyl ligands. The compound is soluble in common organic solvents.[1]

Quick facts: Identifiers, Properties, Hazards... ▼
Cyclopentadienyl cobalt dicarbonyl
CpCo%28CO%292new.svg
Cyclopentadienylcobalt-dicarbonyl-from-xtal-1992-CM-3D-balls.png
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.933 Edit this at Wikidata
EC Number
  • 235-139-8
  • InChI=1S/C5H5.2CO.Co/c1-2-4-5-3-1;2*1-2;/h1-5H;;;/q-1;;; ☒N
    Key: AEVRNKXPLOTCBW-UHFFFAOYSA-N ☒N
  • InChI=1/C5H5.2CO.Co/c1-2-4-5-3-1;2*1-2;/h1-5H;;;/q-1;;;
    Key: AEVRNKXPLOTCBW-UHFFFAOYAD
  • [C-]#[O+].[C-]#[O+].[cH-]1cccc1.[Co]
Properties
CpCo(CO)2
Molar mass 180.05 g/mol
Appearance Dark red to black liquid
Density 1.35 g/cm3
Melting point −22 °C (−8 °F; 251 K)
Boiling point 139 to 140 °C (282 to 284 °F; 412 to 413 K) (710 mmHg)
37-38.5 °C (2 mmHg)
Insoluble
Hazards
GHS labelling:
GHS02: FlammableGHS06: ToxicGHS08: Health hazard
Danger
H226, H301, H311, H331, H334, H341, H351, H412
Flash point 26.7 °C (80.1 °F; 299.8 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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