(O)₂ (dioxo O₂ 2⊖ X₂L Ⓢ)

[S(O)₂{Mn(CO)₂Cp}]

Formula Unicode styled: 
[S(O)₂{Mn(CO)₂Cp}]
Compound name(s): 
(Dicarbonyl-η-cyclopentadienyl-manganese)-dioxo-sulfur
Central atom: 
Sulfur
Attached groups: 
(O)₂ (dioxo O₂ 2⊖ X₂L Ⓢ)
Mn(CO)₂Cp (dicarbonylcyclopentadienylmanganese)
Charge on central atom: 
2
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
S«V6C3OIVE8B4X2L1Z1»2⊕
[MLXZ]𝘲 class: 
[MX2L1Z1]2+
MLXZ class (ENC, equivalent neutral class): 
MX2Z2

[S(O)₂{Cr(CO)₅}]

Formula Unicode styled: 
[S(O)₂{Cr(CO)₅}]
Compound name(s): 
(pentacarbonyl-chromium)-dioxo-sulfur
Central atom: 
Sulfur
Attached groups: 
(O)₂ (dioxo O₂ 2⊖ X₂L Ⓢ)
Cr(CO)₅ (pentacarbonylchromium)
Charge on central atom: 
2
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
S«V6C3OIVE8B4X2L1Z1»2⊕
[MLXZ]𝘲 class: 
[MX2L1Z1]2+
MLXZ class (ENC, equivalent neutral class): 
MX2Z2

[C(Me)(O)₂]⊖

Formula Unicode styled: 
[C(Me)(O)₂]⊖
Compound name(s): 
acetate(1-)
Central atom: 
Carbon
Attached groups: 
Me (methyl)
(O)₂ (dioxo O₂ 2⊖ X₂L Ⓢ)
O (oxo X₂)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C3OIIIE8B4Z0X3L1»⊕
[MLXZ]𝘲 class: 
[MX3L1]+
MLXZ class (ENC, equivalent neutral class): 
MX4

[N(O)₂]₂

Formula Unicode styled: 
[N(O)₂]₂
Compound name(s): 
Dinitrogen tetraoxide
Central atom: 
Nitrogen
Attached groups: 
(O)₂ (dioxo O₂ 2⊖ X₂L Ⓢ)
Charge on central atom: 
2
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: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
N«V5C3OIVE8B4Z0X3L1»2⊕
[MLXZ]𝘲 class: 
[MX3L1]2+
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N(O)₂]⊖

Formula Unicode styled: 
[N(O)₂]⊖
Compound name(s): 
Dioxo-nitrogen(1-), (nitrite)
Central atom: 
Nitrogen
Attached groups: 
(O)₂ (dioxo O₂ 2⊖ X₂L Ⓢ)
Charge on central atom: 
1
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: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
N«V3C2OIIIE8B3Z0X2L1»⊕
[MLXZ]𝘲 class: 
[MX2L1]+
MLXZ class (ENC, equivalent neutral class): 
MX3

fac–[Re(⭀NBuᵗ)(O)₂([9]aneN₃-κ³N)]⊕

Formula Unicode styled: 
fac–[Re(⭀NBuᵗ)(O)₂([9]aneN₃-κ³N)]⊕
Compound name(s): 
bis(t-Butylimido-dioxo-(1,4,7-triazacyclononane)-rhenium(1+)
Central atom: 
Rhenium
Attached groups: 
⭀NBuᵗ (⭀N t-butylimino)
(O)₂ (dioxo O₂ 2⊖ X₂L Ⓢ)
[9]aneN₃ (1,4,7-triazacyclononane-κ³N)
Charge on central atom: 
3
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 7
Oxidation Number (ON) (Roman numerals): 
ON: (VII)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Re«V7C6OVIIE18B9Z0X4L5»3⊕
[MLXZ]𝘲 class: 
[MX4L5]3+
MLXZ class (ENC, equivalent neutral class): 
MX7L2