(CO)₃ (tri-μ₂-carbonyl X₄L₂ Ⓢ)

A set of three bridging carbonyl

[Fe₂(CO)₆(μ₂-CO)₃]

Formula Unicode styled: 
[Fe₂(CO)₆(μ₂-CO)₃]
Compound name(s): 
tris(μ₂-carbonyl)-hexacarbonyl-di-iron
Central atom: 
Iron
Attached groups: 
CO (carbonyl)
(CO)₃ (tri-μ₂-carbonyl X₄L₂ Ⓢ)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (O)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Fe«V2C6OOE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4