C₄H₆ (η⁴-butadiene)

[Fe(η⁴-C₄H₆)₂]⊖

Formula Unicode styled: 
[Fe(η⁴-C₄H₆)₂]⊖
Compound name(s): 
bis(η⁴-buta-1,3-diene)-iron(1-)
Central atom: 
Attached groups: 
Charge on central atom: 
-1
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
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: 
Attached groups: 
Charge on central atom: 
-1
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
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: 
Attached groups: 
Charge on central atom: 
-1
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
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: 
Charge on central atom: 
-1
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
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: 
Attached groups: 
Charge on central atom: 
-1
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Co«V1C4O-IE18B5Z0X0L4»
[MLXZ]𝘲 class: 
[ML4]-
MLXZ class (ENC, equivalent neutral class): 
MX1L4

cis–[Nb(μ₂-Cl)(η⁴-C₄H₆)(Cp)]₂

Formula Unicode styled: 
cis–[Nb(μ₂-Cl)(η⁴-C₄H₆)(Cp)]₂
Compound name(s): 
bis-[(μ₂-Chloro)-(η⁵-cyclopentadienyl)-(η⁴-butadiene)-niobium]
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Nb«V2C7OIIE17B7Z0X2L5»
[MLXZ]𝘲 class: 
[MX2L5]
MLXZ class (ENC, equivalent neutral class): 
MX2L5

[Rh(η⁴-C₄H₆)₂(PPrⁱ₃)]⊕

Formula Unicode styled: 
[Rh(η⁴-C₄H₆)₂(PPrⁱ₃)]⊕
Compound name(s): 
bis(η⁴--Butadiene)-tri-isopropylphosphine-rhodium(1+)
Central atom: 
Charge on central atom: 
1
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Rh«V1C5OIE18B5Z0X0L5»
[MLXZ]𝘲 class: 
[ML5]+
MLXZ class (ENC, equivalent neutral class): 
MX1L4

cis,cis–[Rh(Cl)(η⁴-C₄H₆)₂]

Formula Unicode styled: 
cis,cis–[Rh(Cl)(η⁴-C₄H₆)₂]
Compound name(s): 
bis(η⁴--Butadiene)-chloro-rhodium
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Rh«V1C5OIE18B5Z0X1L4»
[MLXZ]𝘲 class: 
[MX1L4]
MLXZ class (ENC, equivalent neutral class): 
MX1L4

[Ru(η⁴-C₄H₆)(η⁶-C₆H₆)]

Formula Unicode styled: 
[Ru(η⁴-C₄H₆)(η⁶-C₆H₆)]
Compound name(s): 
(η⁶-Benzene)-(η⁴-buta-1,3-diene)-ruthenium
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ru«V0C5OOE18B5Z0X0L5»
[MLXZ]𝘲 class: 
[ML5]
MLXZ class (ENC, equivalent neutral class): 
ML5

[Ru(SO₃CF₃-κO)(η⁴-C₄H₆)(Cp*)]

Formula Unicode styled: 
[Ru(SO₃CF₃-κO)(η⁴-C₄H₆)(Cp*)]
Compound name(s): 
(η⁴-Buta-1,3-diene)-(η⁵-pentamethyl-cyclopentadienyl)-trifluoromethanesulfonato-ruthenium
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ru«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ru(I)(η⁴-C₄H₆)(Cp)]

Formula Unicode styled: 
[Ru(I)(η⁴-C₄H₆)(Cp)]
Compound name(s): 
(η⁴-s-cis-1,3-Butadiene)-(η⁵-cyclopentadienyl)-iodo-ruthenium
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ru«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

fac–[Ru(H)(PMe₂Ph)₃(η⁴-C₄H₆)]⊕

Formula Unicode styled: 
fac–[Ru(H)(PMe₂Ph)₃(η⁴-C₄H₆)]⊕
Compound name(s): 
(Buta-1,3-diene)-tris(dimethylphenylphosphine)-hydrido-ruthenium(1+)
Central atom: 
Charge on central atom: 
1
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ru«V2C6OIIE18B6Z0X1L5»
[MLXZ]𝘲 class: 
[MX1L5]+
MLXZ class (ENC, equivalent neutral class): 
MX2L4

fac–[Ru(Cl)(η⁴-C₄H₆)(Tp-κ³N)]

Formula Unicode styled: 
fac–[Ru(Cl)(η⁴-C₄H₆)(Tp-κ³N)]
Compound name(s): 
(η⁴-Buta-1,3-diene)-(hydrogen tris(pyrazolyl)borate)-chloro-ruthenium
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ru«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

cis–[Ru(NH₃)₄(η⁴-C₄H₆)]²⊕

Formula Unicode styled: 
cis–[Ru(NH₃)₄(η⁴-C₄H₆)]²⊕
Compound name(s): 
(η⁴-1,3-Butadiene)-tetra-ammine-ruthenium(2+)
Central atom: 
Charge on central atom: 
2
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ru«V2C6OIIE18B6Z0X0L6»2⊕
[MLXZ]𝘲 class: 
[ML6]2+
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Fe(PEt₃)(η⁴-C₄H₆)(η⁴-Cod)]

Formula Unicode styled: 
[Fe(PEt₃)(η⁴-C₄H₆)(η⁴-Cod)]
Compound name(s): 
(η⁴-Buta-1,3-diene)-(η⁴-cyclo-octa-1,5-diene)-triethylphosphine-iron
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Fe«V0C5OOE18B5Z0X0L5»
[MLXZ]𝘲 class: 
[ML5]
MLXZ class (ENC, equivalent neutral class): 
ML5

[Fe(CO)₃(η⁴-C₄H₆)]

Formula Unicode styled: 
[Fe(CO)₃(η⁴-C₄H₆)]
Compound name(s): 
Butadiene iron tricarbonyl
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Fe«V0C5OOE18B5Z0X0L5»
[MLXZ]𝘲 class: 
[ML5]
MLXZ class (ENC, equivalent neutral class): 
ML5

[Fe(CO){P(OMe)₃}(PPh₃)(η⁴-C₄H₆)]

Formula Unicode styled: 
[Fe(CO){P(OMe)₃}(PPh₃)(η⁴-C₄H₆)]
Compound name(s): 
Carbonyl-triphenylphosphine-trimethylphosphite-(η⁴-buta-1,3-diene)-iron
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Fe«V0C5OOE18B5Z0X0L5»
[MLXZ]𝘲 class: 
[ML5]
MLXZ class (ENC, equivalent neutral class): 
ML5

[Co(PMe₃)₃(η⁴-C₄H₆)]⊕

Formula Unicode styled: 
[Co(PMe₃)₃(η⁴-C₄H₆)]⊕
Compound name(s): 
(η⁴-1,3-Butadiene)-tris(trimethylphosphine)-cobalt(1+)
Central atom: 
Charge on central atom: 
1
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Co«V1C5OIE18B5Z0X0L5»
[MLXZ]𝘲 class: 
[ML5]+
MLXZ class (ENC, equivalent neutral class): 
MX1L4

[Co(CO)(μ₂-CO)(η⁴-C₄H₆)]₂

Formula Unicode styled: 
[Co(CO)(μ₂-CO)(η⁴-C₄H₆)]₂
Compound name(s): 
bis-[cis-Butadiene-dicarbonyl-cobalt]
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Co«V1C5OOE18B5Z0X1L4»
[MLXZ]𝘲 class: 
[MX1L4]
MLXZ class (ENC, equivalent neutral class): 
MX1L4

[Ir(η⁴-C₄H₆)([9]aneS₃-κ³S)]⊕

Formula Unicode styled: 
[Ir(η⁴-C₄H₆)([9]aneS₃-κ³S)]⊕
Compound name(s): 
(η⁴-Butadiene)-(1,4,7-trithiacyclononane-S,S'S'')-iridium(1+)
Central atom: 
Charge on central atom: 
1
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ir«V1C5OIE18B5Z0X0L5»
[MLXZ]𝘲 class: 
[ML5]+
MLXZ class (ENC, equivalent neutral class): 
MX1L4