Me₃CC≡CMe (t-butyl-methyl-ethyne)

[Au(Me₃CC≡CMe)(PBuᵗ₃)]⊕

Formula Unicode styled: 
[Au(Me₃CC≡CMe)(PBuᵗ₃)]⊕
Compound name(s): 
(η²-4,4-Dimethylpent-2-yne)-(tri-t-butylphosphine)-gold(1+)
Central atom: 
Gold
Attached groups: 
Me₃CC≡CMe (t-butyl-methyl-ethyne)
PBuᵗ₃ (tri-t-butylphosphane)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 14
Summary of calculated classifications: 
Au«V1C2OIE14B2Z0X0L2»⊕
[MLXZ]𝘲 class: 
[ML2]+
MLXZ class (ENC, equivalent neutral class): 
MX1L1