C₄H₄Me₂ (σ²-η²-dimethylbutadiene)

[Ta(σ²-η²-C₄H₄Me₂)(η⁴-C₄H₆)(Cp*)]

Formula Unicode styled: 
[Ta(σ²-η²-C₄H₄Me₂)(η⁴-C₄H₆)(Cp*)]
Compound name(s): 
(η-Butadiene)-(sigma-,η-2,3-dimethylbut-2-ene)-(η-pentamethyl-cyclopentadienyl)-tantalum
Central atom: 
Tantalum
Attached groups: 
C₄H₄Me₂ (σ²-η²-dimethylbutadiene)
C₄H₆ (η⁴-butadiene)
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
0
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«V3C8OIIIE18B8Z0X3L5»
[MLXZ]𝘲 class: 
[MX3L5]
MLXZ class (ENC, equivalent neutral class): 
MX3L5