4-coordinate: tetrahedral (p-block element, 2 lone pairs)

[N(κN-NO₂)₂]⊖

Formula Unicode styled: 
[N(κN-NO₂)₂]⊖
Compound name(s): 
dinitronitrogen(1-), (dinitroazanide)
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: 
N«V3C2O-IE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]-
MLXZ class (ENC, equivalent neutral class): 
MX3

[N=N=N)(GePh₃)]

Formula Unicode styled: 
[N=N=N)(GePh₃)]
Compound name(s): 
Azido-triphenylgermane
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: 
N«V3C2O-IE8B3Z0L0X3»
[MLXZ]𝘲 class: 
[MX3]
MLXZ class (ENC, equivalent neutral class): 
MX3

[N(I)(PPh₃)]

Formula Unicode styled: 
[N(I)(PPh₃)]
Compound name(s): 
Triphenylphosphane-iodo-imide
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: 
N«V5C2O-IE8B4X1L1Z2»
[MLXZ]𝘲 class: 
[MX1L1Z2]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N(AsPh₃)(PEt₃)]⁺

Formula Unicode styled: 
[N(AsPh₃)(PEt₃)]⁺
Compound name(s): 
triethylphosphine-triphenylarsine-nitrogen(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: 
N«V5C2O-IIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]+
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N(AsMe₃)₂]⊕

Formula Unicode styled: 
[N(AsMe₃)₂]⊕
Compound name(s): 
bis-(trimethylarsine(nitrogen(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: 
N«V5C2O-IIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]+
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N(AsPh₃)₂]⊕

Formula Unicode styled: 
[N(AsPh₃)₂]⊕
Compound name(s): 
bis(Triphenylarsoranylidene)nirogen(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: 
N«V5C2O-IIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]+
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[P(Ph)₂]⊖

Formula Unicode styled: 
[P(Ph)₂]⊖
Compound name(s): 
diphenylphosphorus(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: 
P«V1C2OIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]-
MLXZ class (ENC, equivalent neutral class): 
MX1L1

[As(Ph)₂]⊖

Formula Unicode styled: 
[As(Ph)₂]⊖
Compound name(s): 
diphenylarsenic(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: 
As«V1C2OIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]-
MLXZ class (ENC, equivalent neutral class): 
MX1L1

[I(I)₂]⊕

Formula Unicode styled: 
[I(I)₂]⊕
Compound name(s): 
triiodine(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: 
I«V3C2OIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]+
MLXZ class (ENC, equivalent neutral class): 
MX1Z1

[Br(Br)₂]⊕

Formula Unicode styled: 
[Br(Br)₂]⊕
Compound name(s): 
Tribromine(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: 
Br«V3C2OIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]+
MLXZ class (ENC, equivalent neutral class): 
MX1Z1

[Pb(Me){C₆H₃(C₆H₂Prⁱ₃)₂}]

Formula Unicode styled: 
[Pb(Me){C₆H₃(C₆H₂Prⁱ₃)₂}]
Compound name(s): 
methyl-(2,6-bis(2,4,6-triisopropylphenyl)phenyl)-lead
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: 
Pb«V2C2OIIE6B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[I(Ph)₂]⊕

Formula Unicode styled: 
[I(Ph)₂]⊕
Compound name(s): 
Diphenyliodine(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: 
I«V3C2OIIIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]+
MLXZ class (ENC, equivalent neutral class): 
MX1Z1

[I(Cl)₂]⊕

Formula Unicode styled: 
[I(Cl)₂]⊕
Compound name(s): 
dichloroiodine(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: 
I«V3C2OIIIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]+
MLXZ class (ENC, equivalent neutral class): 
MX1Z1

[I(Br)₂]⊕

Formula Unicode styled: 
[I(Br)₂]⊕
Compound name(s): 
Dibromo-iodine(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: 
I«V3C2OIIIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]+
MLXZ class (ENC, equivalent neutral class): 
MX1Z1

[I(OH)(Ph)]⊕

Formula Unicode styled: 
[I(OH)(Ph)]⊕
Compound name(s): 
Hydroxy(phenyl)iodine(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: 
I«V3C2OIIIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]+
MLXZ class (ENC, equivalent neutral class): 
MX1Z1

[I(C₆H₄-C₆H₄)]⊕

Formula Unicode styled: 
[I(C₆H₄-C₆H₄)]⊕
Compound name(s): 
(Biphenyl)iodine(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: 
I«V3C2OIIIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]+
MLXZ class (ENC, equivalent neutral class): 
MX1Z1

[I(C₆F₅)₂]⊕

Formula Unicode styled: 
[I(C₆F₅)₂]⊕
Compound name(s): 
bis(Pentafluorophenyl)iodine(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: 
I«V3C2OIIIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]+
MLXZ class (ENC, equivalent neutral class): 
MX1Z1

[I(C≡CPh)(Ph)]⊕

Formula Unicode styled: 
[I(C≡CPh)(Ph)]⊕
Compound name(s): 
Phenyl-(phenylethynyl)-iodine(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: 
I«V3C2OIIIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]+
MLXZ class (ENC, equivalent neutral class): 
MX1Z1

[I(C≡CH)(Ph)]⊕

Formula Unicode styled: 
[I(C≡CH)(Ph)]⊕
Compound name(s): 
Ethynyl(phenyl)iodine(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: 
I«V3C2OIIIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]+
MLXZ class (ENC, equivalent neutral class): 
MX1Z1

[I(C≡CCN)(Ph)]⊕

Formula Unicode styled: 
[I(C≡CCN)(Ph)]⊕
Compound name(s): 
Cyanoethynyl(phenyl)iodine(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: 
I«V3C2OIIIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]+
MLXZ class (ENC, equivalent neutral class): 
MX1Z1