=CH₂ (methylidene)

[C(H)(=CH₂)(C₆₂H₈₈CoN₁₃O₁₄P)]

Formula Unicode styled: 
[C(H)(=CH₂)(C₆₂H₈₈CoN₁₃O₁₄P)]
Compound name(s): 
vinyl-cobalamin
Central atom: 
Carbon
Attached groups: 
H (hydrido)
=CH₂ (methylidene)
cobalamin (vitamin B₁₂)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C3O-IIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(CO₂H)(=CH₂)(H)]

Formula Unicode styled: 
[C(CO₂H)(=CH₂)(H)]
Compound name(s): 
Acrylic acid
Central atom: 
Carbon
Attached groups: 
CO₂H (carboxyl)
=CH₂ (methylidene)
H (hydrido)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-I)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C3O-IE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[Rh(Ph)(=CH₂)(Cp*)]₂

Formula Unicode styled: 
trans–[Rh(Ph)(=CH₂)(Cp*)]₂
Compound name(s): 
bis-[(μ₂-Methylene)-(η⁵-pentamethyl-cyclopentadienyl)-phenyl-rhodium]
Central atom: 
Rhodium
Attached groups: 
Ph (phenyl)
=CH₂ (methylidene)
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Rh«V5C7OIVE18B7Z0X5L2»
[MLXZ]𝘲 class: 
[MX5L2]
MLXZ class (ENC, equivalent neutral class): 
MX5L2

[Rh(NCS-κN)(=CH₂)(Cp*)]₂

Formula Unicode styled: 
[Rh(NCS-κN)(=CH₂)(Cp*)]₂
Compound name(s): 
bis-[(Thiocyanato)-(μ₂-methylene)-(η⁵-pentamethyl-cyclopentadienyl)-di-rhodium]
Central atom: 
Rhodium
Attached groups: 
NCS (isothiocyanato-κN)
=CH₂ (methylidene)
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Rh«V5C7OIVE18B7Z0X5L2»
[MLXZ]𝘲 class: 
[MX5L2]
MLXZ class (ENC, equivalent neutral class): 
MX5L2

[Rh(CH=CH₂)(=CH₂)(Cp*)]₂

Formula Unicode styled: 
[Rh(CH=CH₂)(=CH₂)(Cp*)]₂
Compound name(s): 
bis-[(μ2-Methylene)-vinyl-(η5-pentamethyl-cyclopentadienyl)-rhodium]
Central atom: 
Rhodium
Attached groups: 
CH=CH₂ (vinyl)
=CH₂ (methylidene)
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Rh«V5C7OIVE18B7Z0X5L2»
[MLXZ]𝘲 class: 
[MX5L2]
MLXZ class (ENC, equivalent neutral class): 
MX5L2

[Rh(=CH₂)(CO)(Cp*)]₂²⊕

Formula Unicode styled: 
[Rh(=CH₂)(CO)(Cp*)]₂²⊕
Compound name(s): 
bis-[(μ₂-Methylene)-(carbonyl)-(η⁵-pentamethyl-cyclopentadienyl)-rhodium(1+)]
Central atom: 
Rhodium
Attached groups: 
=CH₂ (methylidene)
CO (carbonyl)
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Rh«V5C7OIVE18B7Z0X4L3»⊕
[MLXZ]𝘲 class: 
[MX4L3]+
MLXZ class (ENC, equivalent neutral class): 
MX5L2

[Ru(=CH₂)(PMe₃)₃]₂²⊕

Formula Unicode styled: 
[Ru(=CH₂)(PMe₃)₃]₂²⊕
Compound name(s): 
bis-[(μ₂-Methylene)-tris(trimethylphosphine)-ruthenium(1+)]
Central atom: 
Ruthenium
Attached groups: 
=CH₂ (methylidene)
PMe₃ (trimethylphosphane)
Charge on central atom: 
1
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Ru«V4C6OIIIE16B6Z0X3L3»⊕
[MLXZ]𝘲 class: 
[MX3L3]+
MLXZ class (ENC, equivalent neutral class): 
MX4L2

[O(=CH₂)]

Formula Unicode styled: 
[O(=CH₂)]
Compound name(s): 
Formaldehyde
Central atom: 
Oxygen
Attached groups: 
=CH₂ (methylidene)
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: 1
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V2C1O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[C(H)(Ph)(=CH₂)]

Formula Unicode styled: 
[C(H)(Ph)(=CH₂)]
Compound name(s): 
Styrene
Central atom: 
Carbon
Attached groups: 
H (hydrido)
Ph (phenyl)
=CH₂ (methylidene)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-I)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C3O-IE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(H)₂(=CH₂)]

Formula Unicode styled: 
[C(H)₂(=CH₂)]
Compound name(s): 
Ethene, ethylene
Central atom: 
Carbon
Attached groups: 
H (hydrido)
=CH₂ (methylidene)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C3O-IIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(H){Si(C₆F₅)₃}(=CH₂)]

Formula Unicode styled: 
[C(H){Si(C₆F₅)₃}(=CH₂)]
Compound name(s): 
Vinyl-tris(pentafluorophenyl)silane
Central atom: 
Carbon
Attached groups: 
H (hydrido)
Si(C₆F₅)₃ (tri(pentaflorophenyl)silyl)
=CH₂ (methylidene)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C3O-IIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(H)(SnPh₃)(=CH₂)]

Formula Unicode styled: 
[C(H)(SnPh₃)(=CH₂)]
Compound name(s): 
Triphenyl-vinyl-tin
Central atom: 
Carbon
Attached groups: 
H (hydrido)
SnPh₃ (triphenylstannyl)
=CH₂ (methylidene)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C3O-IIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(H)(CN)(=CH₂)]

Formula Unicode styled: 
[C(H)(CN)(=CH₂)]
Compound name(s): 
Acrylonitrile
Central atom: 
Carbon
Attached groups: 
H (hydrido)
CN (cyano-κC)
=CH₂ (methylidene)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-I)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C3O-IE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Ge(H)₂(=CH₂)]₃

Formula Unicode styled: 
[Ge(H)₂(=CH₂)]₃
Compound name(s): 
1,3,5-Trigermacyclohexane
Central atom: 
Germanium
Attached groups: 
H (hydrido)
=CH₂ (methylidene)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Ge«V4C4OIVE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Ge(Cl)₂(=CH₂)]₃

Formula Unicode styled: 
[Ge(Cl)₂(=CH₂)]₃
Compound name(s): 
1,1,3,3,5,5-Hexachloro-1,3,5-trigermacyclohexane
Central atom: 
Germanium
Attached groups: 
Cl (chloro)
=CH₂ (methylidene)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Ge«V4C4OIVE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[P(Ph)₃(=CH₂)]

Formula Unicode styled: 
[P(Ph)₃(=CH₂)]
Compound name(s): 
Methylenetriphenylphosphorane
Central atom: 
Phosphorus
Attached groups: 
Ph (phenyl)
=CH₂ (methylidene)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
P«V5C4OVE10B5Z0L0X5»
[MLXZ]𝘲 class: 
[MX5]
MLXZ class (ENC, equivalent neutral class): 
MX5

[Ir(=CH₂)(Cp*)]₂

Formula Unicode styled: 
[Ir(=CH₂)(Cp*)]₂
Compound name(s): 
bis(μ₂-methylene)-bis(η⁵-pentamethylcyclopentadienyl)-di-iridium
Central atom: 
Iridium
Attached groups: 
=CH₂ (methylidene)
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Ir«V5C6OIIIE18B7Z0X5L2»
[MLXZ]𝘲 class: 
[MX5L2]
MLXZ class (ENC, equivalent neutral class): 
MX5L2

trans–[Os(Cl)(=CH₂)(PPh₃)₂(NO)]

Formula Unicode styled: 
trans–[Os(Cl)(=CH₂)(PPh₃)₂(NO)]
Compound name(s): 
Chloro-methylene-nitroso-bis(triphenylphosphine)-osmium
Central atom: 
Osmium
Attached groups: 
Cl (chloro)
=CH₂ (methylidene)
PPh₃ (triphenylphosphane)
NO (nitrosyl, linear)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 5
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Os«V6C5OIIE18B8X4L3Z1»
[MLXZ]𝘲 class: 
[MX4L3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX6L2

[Os(=CH₂)(Dppm-κ²P)(Cp*)]⊕

Formula Unicode styled: 
[Os(=CH₂)(Dppm-κ²P)(Cp*)]⊕
Compound name(s): 
(η⁵-Pentamethyl-cyclopentadienyl)-methylidene-(bis(diphenylphosphino)methane)-osmium(1+)
Central atom: 
Osmium
Attached groups: 
=CH₂ (methylidene)
Dppm (bis-(diphenylphosphino)methane-κ²P)
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Os«V4C6OIVE18B7Z0X3L4»⊕
[MLXZ]𝘲 class: 
[MX3L4]+
MLXZ class (ENC, equivalent neutral class): 
MX4L3

[Re(=CH₂){P(OPh)₃}(NO)(Cp*)]⊕

Formula Unicode styled: 
[Re(=CH₂){P(OPh)₃}(NO)(Cp*)]⊕
Compound name(s): 
(η⁵-Pentamethyl-cyclopentadienyl)-methylidene-nitrosyl-triphenylphosphito-rhenium(1+)
Central atom: 
Rhenium
Attached groups: 
=CH₂ (methylidene)
P(OPh)₃ (triphenylphosphite)
NO (nitrosyl, linear)
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 7
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Re«V7C6OIIIE18B9X4L4Z1»⊕
[MLXZ]𝘲 class: 
[MX4L4Z1]+
MLXZ class (ENC, equivalent neutral class): 
MX7L2