C₄H₄Me₂ (η⁴-dimethylbutadiene)

[W(η⁴-C₄H₄Me₂)₃]

Formula Unicode styled: 
[W(η⁴-C₄H₄Me₂)₃]
Compound name(s): 
tris(eta-2,3-Dimethylbutadienyl)-tungsten
Central atom: 
Tungsten
Attached groups: 
C₄H₄Me₂ (η⁴-dimethylbutadiene)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 0
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: 
W«V0C6OOE18B6Z0X0L6»
[MLXZ]𝘲 class: 
[ML6]
MLXZ class (ENC, equivalent neutral class): 
ML6

[Hf(Cl)₂(PMe₃)₂(η⁴-C₄H₄Me₂)]

Formula Unicode styled: 
[Hf(Cl)₂(PMe₃)₂(η⁴-C₄H₄Me₂)]
Compound name(s): 
Dichloro-(η-2,3-dimethylbutadiene)-bis(trimethylphosphine)-hafnium
Central atom: 
Hafnium
Attached groups: 
Cl (chloro)
PMe₃ (trimethylphosphane)
C₄H₄Me₂ (η⁴-dimethylbutadiene)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 14
Summary of calculated classifications: 
Hf«V2C6OIIE14B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Hf(η⁴-C₄H₄Me₂)(Cp)₂]

Formula Unicode styled: 
[Hf(η⁴-C₄H₄Me₂)(Cp)₂]
Compound name(s): 
(η-s-cis-2,3-Dimethylbutadiene)-hafnocene
Central atom: 
Hafnium
Attached groups: 
C₄H₄Me₂ (η⁴-dimethylbutadiene)
Cp (η⁵-cyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 8
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Hf«V2C8OIIE18B8Z0X2L6»
[MLXZ]𝘲 class: 
[MX2L6]
MLXZ class (ENC, equivalent neutral class): 
MX2L6