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Sigma-Aldrich

Bis(pentamethylcyclopentadienyl)cobalt(II)

Synonym(s):

CoCp*2, Decamethylcobaltocene

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$139.00

About This Item

Empirical Formula (Hill Notation):
C20H30Co
CAS Number:
74507-62-3
Molecular Weight:
329.39
MDL number:
MFCD02093610
UNSPSC Code:
12352103
PubChem Substance ID:
24864881
NACRES:
NA.23

$139.00

Available to ship onApril 10, 2025Details

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form

solid

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

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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.[1]

Application

Bis(pentamethylcyclopentadienyl)cobalt(II) can be used as:
  • An n-type dopant to fabricate organic electronic materials such as copper phthalocyanine thin films.[1]
  • A reducing agent to synthesize high-quality reduced graphene oxide thin films at room temperature.[2]
  • A metal organic precursor for plasma-enhanced atomic layer deposition of cobalt.[3]

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV5063
MKCT3160
MKCQ9261
MKCN9207
MKCL3223

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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

Articles

Metal-Organic Complexes for Doping

Highly reducing or oxidizing species enhance organic semiconductor conductivity by reducing charge-carrier injection barriers.

High Purity Metalorganic Precursors for CPV Device Fabrication

High Purity Metalorganic Precursors for CPV Device Fabrication

Progress in Spintronic Materials

Spintronics offer breakthroughs over conventional memory/logic devices with lower power, leakage, saturation, and complexity.

Atomic Layer Deposition of Nanomaterials for Li-Ion Batteries, Fuel Cells, and Solar Cells

Nanomaterials are considered a route to the innovations required for large-scale implementation of renewable energy technologies in society to make our life sustainable.

Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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