C₄H₆ (η²-butadiene)

[Ta(CNCy)(η²-C₄H₆)(Cp)₂]⊕

Formula Unicode styled: 
[Ta(CNCy)(η²-C₄H₆)(Cp)₂]⊕
Compound name(s): 
(η-Buta-1,3-diene)-(cyclohexylisocyano)-bis(η-cyclopentadienyl)-tantalum(1+)
Central atom: 
Tantalum
Attached groups: 
CNCy (cyclohexyl isocyanide)
C₄H₆ (η²-butadiene)
Cp (η⁵-cyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 8
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Ta«V3C8OIIIE18B8Z0X2L6»⊕
[MLXZ]𝘲 class: 
[MX2L6]+
MLXZ class (ENC, equivalent neutral class): 
MX3L5