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manganocene

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manganocene

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Manganocene or bis(cyclopentadienyl)manganese(II) is an organomanganese compound with the formula [Mn(C5H5)2]n. It is a thermochromic solid that degrades rapidly in air. Although the compound is of little utility, it is often discussed as an example of a metallocene with ionic character.

Chemical data

Formula
C10H2Mn-10
Molecular weight
177.06 g/mol
IUPAC name
bis(cyclopenta-1,3-diene);manganese
SMILES
[CH-]1[C-]=[C-][C-]=[C-]1.[CH-]1[C-]=[C-][C-]=[C-]1.[Mn]
InChIKey
HDTBMGOTBXMORT-UHFFFAOYSA-N
Polar surface area
0 Ų
H-bond donors
0
H-bond acceptors
10
Formal charge
-10

via PubChem

Wikidata facts

Has part
carbon
Mass
176.95918096310004
Show 2 more facts
chemical formula
C₁₀H₁₀Mn
canonical SMILES
[CH-]1[C-]=[C-][C-]=[C-]1.[CH-]1[C-]=[C-][C-]=[C-]1.[Mn]
Sources (2)

via Wikidata · CC0

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Encyclopedic overview

3 sections
Contents
  • Synthesis and structure
  • Reactions
  • References

Manganocene or bis(cyclopentadienyl)manganese(II) is an organomanganese compound with the formula [Mn(C5H5)2]n. It is a thermochromic solid that degrades rapidly in air. Although the compound is of little utility, it is often discussed as an example of a metallocene with ionic character.

==Synthesis and structure== It may be prepared in the manner common for other metallocenes, i.e., by reaction of manganese(II) chloride with sodium cyclopentadienide: MnCl2 + 2 CpNa → Cp2Mn + 2 NaCl

Excerpted from Wikipedia’s “manganocene” article, available under the CC BY-SA 4.0 licence.