3-coordinate: trigonal planar (p-block element, 1 lone pair)

cis–[Pt(CO₃-κ²O)(PEt₃)₂]

Formula Unicode styled: 
cis–[Pt(CO₃-κ²O)(PEt₃)₂]
Compound name(s): 
(Carbonato-O,O')-bis(triethylphosphine)-platinum
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

trans–[Os(Cl)(PPh₃)₂(CO₃-κ²O)(NO)]

Formula Unicode styled: 
trans–[Os(Cl)(PPh₃)₂(CO₃-κ²O)(NO)]
Compound name(s): 
Carbonato-chloro-nitroso-bis(triphenylphosphine)-osmium
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Mo(CO₃-κ²O)(Cp)₂]

Formula Unicode styled: 
[Mo(CO₃-κ²O)(Cp)₂]
Compound name(s): 
(Carbonato-O,O')-bis(η-cyclopentadienyl)-molybdenum
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[W(H)₂(CO₃-κ²O)(PMe₃)₄]

Formula Unicode styled: 
[W(H)₂(CO₃-κ²O)(PMe₃)₄]
Compound name(s): 
(Carbonato-O,O')-dihydrido-tetrakis(trimethylphosphine)-tungsten
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[W(CO₃-κ²O)(Cp)₂]

Formula Unicode styled: 
[W(CO₃-κ²O)(Cp)₂]
Compound name(s): 
bis(η-Cyclopentadienyl)-(carbonato-O,O')-tungsten
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

cis–[In(CO₃-κ²O)(Pc)]⊖

Formula Unicode styled: 
cis–[In(CO₃-κ²O)(Pc)]⊖
Compound name(s): 
(carbonato-O,O')-(phthalocyaninato)-indium(1-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

cis–[Mo(CO)₂(CO₃-κ²O)(Cp)]⊖

Formula Unicode styled: 
cis–[Mo(CO)₂(CO₃-κ²O)(Cp)]⊖
Compound name(s): 
(carbonato-O,O')-(η-cyclopentadienyl)-dicarbonyl-molybdenum(1-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

cis–[Co(CO₃-κ²O){N(CH₂CO₂)₃-κN,κ³O}]²⊖

Formula Unicode styled: 
cis–[Co(CO₃-κ²O){N(CH₂CO₂)₃-κN,κ³O}]²⊖
Compound name(s): 
(carbonato-O,O')-(nitrilotriacetato)-cobalt(2-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Mo(O)₃(CO₃-κ²O)]²⊖

Formula Unicode styled: 
[Mo(O)₃(CO₃-κ²O)]²⊖
Compound name(s): 
(carbonato-O,O')-trioxo-molybdenum(2-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

cis–[W(CO)₄(CO₃-κ²O)]²⊖

Formula Unicode styled: 
cis–[W(CO)₄(CO₃-κ²O)]²⊖
Compound name(s): 
tetracarbonyl-(carbonato-O,O')-tungsten(2-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Pu(O)₂(CO₃-κ²O)₃]⁴⊖

Formula Unicode styled: 
[Pu(O)₂(CO₃-κ²O)₃]⁴⊖
Compound name(s): 
tricarbonato-plutonium(4-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Pu(O)₂(CO₃-κ²O)₃]⁴⊖

Formula Unicode styled: 
[Pu(O)₂(CO₃-κ²O)₃]⁴⊖
Compound name(s): 
dioxo-tricarbonato-plutonium(4-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Ti(O)(CO₃-κ²O)₃]⁴⊖

Formula Unicode styled: 
[Ti(O)(CO₃-κ²O)₃]⁴⊖
Compound name(s): 
tris(carbonato-O,O')-oxo-titanium(4-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Am(O)₂(CO₃-κ²O)₃]⁴⊖

Formula Unicode styled: 
[Am(O)₂(CO₃-κ²O)₃]⁴⊖
Compound name(s): 
tris(carbonato-O,O')-dioxo-americium(4-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Pu(O)₂(CO₃-κ²O)₃]⁴⊖

Formula Unicode styled: 
[Pu(O)₂(CO₃-κ²O)₃]⁴⊖
Compound name(s): 
tris(carbonato-O,O')-dioxo-plutonium(4-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

trans–[Np(O)₂(CO₃-κ²O)₃]⁴⊖

Formula Unicode styled: 
trans–[Np(O)₂(CO₃-κ²O)₃]⁴⊖
Compound name(s): 
tricarbonatodioxoneptunate
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Tb(OH₂)(CO₃-κ²O)₄]⁵⊖

Formula Unicode styled: 
[Tb(OH₂)(CO₃-κ²O)₄]⁵⊖
Compound name(s): 
aqua(tetrakis(carbonato))-terbium(5-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Dy(CO₃-κ²O)₄]⁵⊖

Formula Unicode styled: 
[Dy(CO₃-κ²O)₄]⁵⊖
Compound name(s): 
tetracarbonato-dysprosium(5-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Dy(OH₂)(CO₃-κ²O)₄]⁵⊖

Formula Unicode styled: 
[Dy(OH₂)(CO₃-κ²O)₄]⁵⊖
Compound name(s): 
tetrakis(carbonato)-aqua-dysprosium(5-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Ho(CO₃-κ²O)₄]⁵⊖

Formula Unicode styled: 
[Ho(CO₃-κ²O)₄]⁵⊖
Compound name(s): 
tetracarbonato-holmium(5-)
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: 
O«V2C2O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2