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401781

Sigma-Aldrich

Bis(pentamethylcyclopentadienyl)cobalt(II)

Synonym(s):

CoCp*2, Decamethylcobaltocene

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About This Item

Empirical Formula (Hill Notation):
C20H30Co
CAS Number:
Molecular Weight:
329.39
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

form

solid

Quality Level

reaction suitability

core: cobalt

mp

>210 °C (lit.)

storage temp.

2-8°C

SMILES string

[Co].C[C]1[C](C)[C](C)[C](C)[C]1C.C[C]2[C](C)[C](C)[C](C)[C]2C

InChI

1S/2C10H15.Co/c2*1-6-7(2)9(4)10(5)8(6)3;/h2*1-5H3;

InChI key

XDHJNPINFJSJJB-UHFFFAOYSA-N

General description

Bis(pentamethylcyclopentadienyl)cobalt(II) is a powerful electron donor that is widely used as a dopant to prepare molecular semiconductors due to its low solid-state ionization energy (3.3 eV). The dopant improves charge injection and transport in electronic devices.

Application

Bis(pentamethylcyclopentadienyl)cobalt(II) can be used as:
  • An n-type dopant to fabricate organic electronic materials such as copper phthalocyanine thin films.
  • A reducing agent to synthesize high-quality reduced graphene oxide thin films at room temperature.
  • A metal organic precursor for plasma-enhanced atomic layer deposition of cobalt.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Decamethylcobaltocene as an efficient n-dopant in organic electronic materials and devices
Calvin K. Chan, et al.
Organic Electronics, 9, 575-581 (2008)
Plasma-enhanced atomic layer deposition of Co using Co(MeCp)2 precursor
Jusang Park, et al.
Journal of Energy Chemistry, 22, 403-407 (2013)
Reduction of Graphene Oxide Thin Films by Cobaltocene and Decamethylcobaltocene
Molly M. MacInnes, et al.
ACS Applied Materials & Interfaces, 10, 2004-2015 (2018)
Carolyn N Valdez et al.
Journal of the American Chemical Society, 140(28), 8924-8933 (2018-06-20)
The effects of a variety of monatomic cations (H+, Li+, Na+, K+, Mg2+, and Ca2+) and larger cations (decamethylcobaltocenium and tetrabutylammonium) on the reduction of colloidal ZnO nanocrystals (NCs) are described. Suspensions of "TOPO"-capped ZnO NCs in toluene/THF were treated

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