C₄H₆ (η⁴-butadiene)

[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

[Ta(C₆H₄)(η⁴-C₄H₆)(Cp*)]

Formula Unicode styled: 
[Ta(C₆H₄)(η⁴-C₄H₆)(Cp*)]
Compound name(s): 
(η-Benzyne)-(η-1,3-butadiene)-(η-pentamethyl-cyclopentadienyl)-tantalum
Central atom: 
Tantalum
Attached groups: 
C₆H₄ (benzyne)
C₄H₆ (η⁴-butadiene)
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
0
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: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Ta«V1C6OIE16B6Z0X1L5»
[MLXZ]𝘲 class: 
[MX1L5]
MLXZ class (ENC, equivalent neutral class): 
MX1L5

[Ta(=CHPh)(η⁴-C₄H₆)(PMe₃)(Cp)]

Formula Unicode styled: 
[Ta(=CHPh)(η⁴-C₄H₆)(PMe₃)(Cp)]
Compound name(s): 
Benzylidene-(η-buta-1,3-diene)-(η-pentamethyl-cyclopentadienyl)-trimethylphosphine-tantalum
Central atom: 
Tantalum
Attached groups: 
=CHPh (benzylidene)
C₄H₆ (η⁴-butadiene)
PMe₃ (trimethylphosphane)
Cp (η⁵-cyclopentadienyl)
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: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Ta«V3C7OIIIE18B8Z0X3L5»
[MLXZ]𝘲 class: 
[MX3L5]
MLXZ class (ENC, equivalent neutral class): 
MX3L5

cis–[W(CO)₂(η⁴-C₄H₆)₂]

Formula Unicode styled: 
cis–[W(CO)₂(η⁴-C₄H₆)₂]
Compound name(s): 
bis(η-1,3-Butadiene)-dicarbonyl-tungsten
Central atom: 
Tungsten
Attached groups: 
CO (carbonyl)
C₄H₆ (η⁴-butadiene)
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

[Re(NHPh)(PMe₃)₃(η⁴-C₄H₆)]

Formula Unicode styled: 
[Re(NHPh)(PMe₃)₃(η⁴-C₄H₆)]
Compound name(s): 
Phenylamido-(eta-buta-1,3-diene)-tris(trimethylphosphine)-rhenium
Central atom: 
Rhenium
Attached groups: 
NHPh (phenylamino)
PMe₃ (trimethylphosphane)
C₄H₆ (η⁴-butadiene)
Charge on central atom: 
0
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: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Re«V1C6OIE18B6Z0X1L5»
[MLXZ]𝘲 class: 
[MX1L5]
MLXZ class (ENC, equivalent neutral class): 
MX1L5