alkene

[Fe(η⁴-C₄H₆)₂]⊖

Formula Unicode styled: 
[Fe(η⁴-C₄H₆)₂]⊖
Compound name(s): 
bis(η⁴-buta-1,3-diene)-iron(1-)
Central atom: 
Iron
Attached groups: 
C₄H₆ (η⁴-butadiene)
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: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 17
Summary of calculated classifications: 
Fe«V1C4O-IE17B5Z0X0L4»⊖
[MLXZ]𝘲 class: 
[ML4]-
MLXZ class (ENC, equivalent neutral class): 
MX1L4

[Nb(η⁴-C₄H₆)₃]⊖

Formula Unicode styled: 
[Nb(η⁴-C₄H₆)₃]⊖
Compound name(s): 
tris(η⁴-1,3-butadiene)-niobium(1-)
Central atom: 
Niobium
Attached groups: 
C₄H₆ (η⁴-butadiene)
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: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Nb«V1C6O-IE18B7Z0X0L6»⊖
[MLXZ]𝘲 class: 
[ML6]-
MLXZ class (ENC, equivalent neutral class): 
MX1L6

[Ta(η⁴-C₄H₆)₃]⊖

Formula Unicode styled: 
[Ta(η⁴-C₄H₆)₃]⊖
Compound name(s): 
tris(η⁴-1,3-butadiene)-tantalum(1-)
Central atom: 
Tantalum
Attached groups: 
C₄H₆ (η⁴-butadiene)
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: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Ta«V1C6O-IE18B7Z0X0L6»⊖
[MLXZ]𝘲 class: 
[ML6]-
MLXZ class (ENC, equivalent neutral class): 
MX1L6

[Co(η⁴-C₄H₆)(η⁴-Cod)]⊖

Formula Unicode styled: 
[Co(η⁴-C₄H₆)(η⁴-Cod)]⊖
Compound name(s): 
(η⁴-1,3-butadiene)-(η²,η²-cycloocta-1,5-diene)-cobalt(1-)
Central atom: 
Cobalt
Attached groups: 
C₄H₆ (η⁴-butadiene)
Cod (η²,η²-cycloocta-1,5-diene)
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: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Co«V1C4O-IE18B5Z0X0L4»⊖
[MLXZ]𝘲 class: 
[ML4]-
MLXZ class (ENC, equivalent neutral class): 
MX1L4

[Co(η⁴-C₄H₆)₂]⊖

Formula Unicode styled: 
[Co(η⁴-C₄H₆)₂]⊖
Compound name(s): 
bis(η⁴-buta-1,3-diene)-iron(1-)
Central atom: 
Cobalt
Attached groups: 
C₄H₆ (η⁴-butadiene)
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: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Co«V1C4O-IE18B5Z0X0L4»⊖
[MLXZ]𝘲 class: 
[ML4]-
MLXZ class (ENC, equivalent neutral class): 
MX1L4

[Co(η⁴-Cod)₂]⊖

Formula Unicode styled: 
[Co(η⁴-Cod)₂]⊖
Compound name(s): 
bis(η²,η²-cycloocta-1,5-diene)-cobalt(1-)
Central atom: 
Cobalt
Attached groups: 
Cod (η²,η²-cycloocta-1,5-diene)
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: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Co«V1C4O-IE18B5Z0X0L4»⊖
[MLXZ]𝘲 class: 
[ML4]-
MLXZ class (ENC, equivalent neutral class): 
MX1L4

[Co(C₂H₄)₄]⊖

Formula Unicode styled: 
[Co(C₂H₄)₄]⊖
Compound name(s): 
tetrakis(η²-ethylene)-cobalt(1-)
Central atom: 
Cobalt
Attached groups: 
C₂H₄ (ethene)
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: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Co«V1C4O-IE18B5Z0X0L4»⊖
[MLXZ]𝘲 class: 
[ML4]-
MLXZ class (ENC, equivalent neutral class): 
MX1L4

[Se(μ₂-C₂H₄)]₂

Formula Unicode styled: 
[Se(μ₂-C₂H₄)]₂
Compound name(s): 
1,4-diselenane
bis-[(μ₂-dimethylene)-selenium]
1,4-diselenan
Central atom: 
Selenium
Attached groups: 
C₂H₄ (μ₂-dimethylene)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Se«V2C2OIIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2