3-coordinate: trigonal planar (p-block element, 0 lone pairs)

[N({CH)₅}(O)]

Formula Unicode styled: 
[N({CH)₅}(O)]
Compound name(s): 
Oxo-pyridine
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«V5C3O-IE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]+
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N({CH)₅}{Fe(CO)₄}]

Formula Unicode styled: 
[N({CH)₅}{Fe(CO)₄}]
Compound name(s): 
(tetracarbonyl iron)-pyridine
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«V5C3O-IIIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N({CH)₅}(SeO₂-κSe)]

Formula Unicode styled: 
[N({CH)₅}(SeO₂-κSe)]
Compound name(s): 
(dioxido-selenium)-pyridine
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«V5C3O-IIIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N({CH)₅}(PF₅)]

Formula Unicode styled: 
[N({CH)₅}(PF₅)]
Compound name(s): 
(pentafluoro-phosphorus)-pyridine
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«V5C3O-IIIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N({CH)₅}(I₂)]

Formula Unicode styled: 
[N({CH)₅}(I₂)]
Compound name(s): 
diiodine-pyridine
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«V5C3O-IIIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N({CH)₅}(GaBr₃)]

Formula Unicode styled: 
[N({CH)₅}(GaBr₃)]
Compound name(s): 
(Tribromo-gallium)-pyridine
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«V5C3O-IIIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N({CH)₅}(BF₃)]

Formula Unicode styled: 
[N({CH)₅}(BF₃)]
Compound name(s): 
(Trifluoro-boron)-pyridine
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«V5C3O-IIIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N({CH)₅}(BCl₃)]

Formula Unicode styled: 
[N({CH)₅}(BCl₃)]
Compound name(s): 
(Trichloro-boron)-pyridine
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«V5C3O-IIIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[N({CH)₅}(BBr₃)]

Formula Unicode styled: 
[N({CH)₅}(BBr₃)]
Compound name(s): 
(Tribromo-boron)-pyridine
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«V5C3O-IIIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

cis–[N(Me)(O)]₂

Formula Unicode styled: 
cis–[N(Me)(O)]₂
Compound name(s): 
bis(Nitrosomethane)
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«V5C3OIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]+
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[P(Ph){Cr(CO)₅}]₂

Formula Unicode styled: 
[P(Ph){Cr(CO)₅}]₂
Compound name(s): 
Diphenyl-bis(pentacarbonyl-chromium)-diphosphene
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: 
P«V5C3OIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[P(Cl){=C(SiMe₃)₂}₂]

Formula Unicode styled: 
[P(Cl){=C(SiMe₃)₂}₂]
Compound name(s): 
Chloro-bis(bis(trimethylsilyl)-methylene)-phosphorane
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: 
P«V5C3OVE10B5Z0L0X5»
[MLXZ]𝘲 class: 
[MX5]
MLXZ class (ENC, equivalent neutral class): 
MX5

[P{N(SiMe₃)₂}(=NSiMe₃)₂]

Formula Unicode styled: 
[P{N(SiMe₃)₂}(=NSiMe₃)₂]
Compound name(s): 
bis(Trimethylsilyl)amino-bis(trimethylsilylimino)phosphorane
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: 
P«V5C3OVE12B6Z0X5L1»
[MLXZ]𝘲 class: 
[MX5L1]
MLXZ class (ENC, equivalent neutral class): 
MX5L1

[P{CH(SiMe₃)₂}{Fe(CO)₄}]₂

Formula Unicode styled: 
[P{CH(SiMe₃)₂}{Fe(CO)₄}]₂
Compound name(s): 
bis(bis(Trimethylsilyl)methyl)-bis(tetracarbonyl-iron-diphosphene)
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: 
P«V5C3OIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[P(SPh){=C(SiMe₃)₂}₂]

Formula Unicode styled: 
[P(SPh){=C(SiMe₃)₂}₂]
Compound name(s): 
Phenylthio-bis(bis(trimethylsilyl)-methylene)-phosphorane
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: 
P«V5C3OVE10B5Z0L0X5»
[MLXZ]𝘲 class: 
[MX5]
MLXZ class (ENC, equivalent neutral class): 
MX5

[P(Mes){=C(SiMe₃)₂}(S)]

Formula Unicode styled: 
[P(Mes){=C(SiMe₃)₂}(S)]
Compound name(s): 
Mesityl-(bis(trimethylsilyl)methylene)-thioxo-phosphorane
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: 
P«V5C3OVE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[P(C₆H₂Buᵗ₃)(S)(S)]

Formula Unicode styled: 
[P(C₆H₂Buᵗ₃)(S)(S)]
Compound name(s): 
2,4,6-Tri-t-butylphenyl-dithiophosphorane
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: 
P«V5C3OVE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]+
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[AsCl{Cr(CO)₅}₂]

Formula Unicode styled: 
[AsCl{Cr(CO)₅}₂]
Compound name(s): 
Chloro-bis(pentacarbonyl-chromium)-arsenic
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: 
As«V5C3OIE8B4X1L1Z2»
[MLXZ]𝘲 class: 
[MX1L1Z2]
MLXZ class (ENC, equivalent neutral class): 
MX1L1Z2

[Sb{Cr(CO)₅}₃]⊖

Formula Unicode styled: 
[Sb{Cr(CO)₅}₃]⊖
Compound name(s): 
tris(pentacarbonyl-chromium)-antimony(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: 
Sb«V5C3O-IE8B4X0L1Z3»
[MLXZ]𝘲 class: 
[ML1Z3]-
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[Tl{N(SiMe₃)₂}₃]

Formula Unicode styled: 
[Tl{N(SiMe₃)₂}₃]
Compound name(s): 
tris(bis(trimethylsilyl)amido)-thallium
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: 
Tl«V3C3OIIIE6B3Z0L0X3»
[MLXZ]𝘲 class: 
[MX3]
MLXZ class (ENC, equivalent neutral class): 
MX3