C₂H₄ (μ₂-dimethylene)

[Se₂(Me)₂(μ₂-C₂H₄)(NbCl₅)₂]

Formula Unicode styled: 
[Se₂(Me)₂(μ₂-C₂H₄)(NbCl₅)₂]
Compound name(s): 
(μ₂-dimethylene)-bis[methyl-(pentachloro-niobium)-selenium]
Central atom: 
Selenium
Attached groups: 
Me (methyl)
C₂H₄ (μ₂-dimethylene)
NbCl₅ (pentachloroniobium)
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: 
Se«V4C3OIIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[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

[Se(μ₂-C₂H₄)(I₂)]₂

Formula Unicode styled: 
[Se(μ₂-C₂H₄)(I₂)]₂
Compound name(s): 
bis-[(diiodine)-(μ₂-dimethylene)-selenium]
Central atom: 
Selenium
Attached groups: 
C₂H₄ (μ₂-dimethylene)
I₂ (diiodine Z)
Charge on central atom: 
0
Compound type: 
Oligomer
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: 
Se«V4C3OIIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1