(CO)₅ (pentacarbonyl, (C≡O)₅ trigonal bipyramidal Ⓢ)

[Mn(CO)₅]⊖

Formula Unicode styled: 
[Mn(CO)₅]⊖
Compound name(s): 
pentacarbonyl-manganese(1-)
Central atom: 
Manganese
Attached groups: 
(CO)₅ (pentacarbonyl, (C≡O)₅ trigonal bipyramidal Ⓢ)
Charge on central atom: 
-1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (-I)
Coordination Number (CN, sum of attached group denticities): 
CN: 5
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Mn«V3C5O-IE18B7X0L5Z2»⊖
[MLXZ]𝘲 class: 
[ML5Z2]-
MLXZ class (ENC, equivalent neutral class): 
MX3L4