4-coordinate: tetrahedral (p-block element, 1 lone pair)

[Sm(I)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
[Sm(I)₂(Thf-κO)₅]⊕
Compound name(s): 
Di-iodo-pentakis(tetrahydrofuran-O)-samarium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Nd(Thf-κO)₄(η⁸-Cot)]⊕

Formula Unicode styled: 
[Nd(Thf-κO)₄(η⁸-Cot)]⊕
Compound name(s): 
(η-Cyclo-octatetraenyl)-tetrakis(tetrahydrofuran)-neodymium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Nd(Thf-κO)₄(η³-C₃H₅)₂]⊕

Formula Unicode styled: 
[Nd(Thf-κO)₄(η³-C₃H₅)₂]⊕
Compound name(s): 
bis(η³-Allyl)-tetrakis(tetrahydrofuran)-neodymium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Nd(I)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
[Nd(I)₂(Thf-κO)₅]⊕
Compound name(s): 
bis(Iodo)-pentakis(tetrahydrofuran)-neodymium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Nd(Cl)(Thf-κO)₅(η³-C₃H₅)]⊕

Formula Unicode styled: 
[Nd(Cl)(Thf-κO)₅(η³-C₃H₅)]⊕
Compound name(s): 
(η³-Allyl)-chloro-pentakis(tetrahydrofuran-O)-neodymium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

cis–[Rh(Thf-κO)₂(η⁴-Nbd)]⊕

Formula Unicode styled: 
cis–[Rh(Thf-κO)₂(η⁴-Nbd)]⊕
Compound name(s): 
(η²,η²-Norbornadiene)-bis(tetrahydrofuran-O)-rhodium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

cis–[Rh(Thf-κO)₂(η⁴-Cod)]⊕

Formula Unicode styled: 
cis–[Rh(Thf-κO)₂(η⁴-Cod)]⊕
Compound name(s): 
(η²,η²-Cycloocta-1,5-diene)-bis(tetrahydrofuran)-rhodium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Fe(CO)(PMe₃)(Thf-κO)(Cp*)]⊕

Formula Unicode styled: 
[Fe(CO)(PMe₃)(Thf-κO)(Cp*)]⊕
Compound name(s): 
Carbonyl-(η⁵-pentamethyl-cyclopentadienyl)-(tetrahydrofuran-O)-trimethylphosphine-iron(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

trans–[Al(H)₂(Thf-κO)₄]⊕

Formula Unicode styled: 
trans–[Al(H)₂(Thf-κO)₄]⊕
Compound name(s): 
dihydro-tetrakis(tetrahydrofuran)-aluminium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

trans–[Al(F)₂(Thf-κO)₄]⊕

Formula Unicode styled: 
trans–[Al(F)₂(Thf-κO)₄]⊕
Compound name(s): 
Difluoro-tetrakis(tetrahydrofuran)-aluminium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

trans–[Al(Cl)₂(Thf-κO)₄]⊕

Formula Unicode styled: 
trans–[Al(Cl)₂(Thf-κO)₄]⊕
Compound name(s): 
Dichloro-tetrakis(tetrahydrofuran)-aluminium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

trans–[Al(Br)₂(Thf-κO)₄]⊕

Formula Unicode styled: 
trans–[Al(Br)₂(Thf-κO)₄]⊕
Compound name(s): 
dibromo-tetrakis(tetrahydrofuran)-aluminium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Al(Me)₂(Thf-κO)₂]⊕

Formula Unicode styled: 
[Al(Me)₂(Thf-κO)₂]⊕
Compound name(s): 
Dimethyl-bis(tetrahydrofuran)-aluminium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Al(C₃H₅-κC)₂(Thf-κO)₃]⊕

Formula Unicode styled: 
[Al(C₃H₅-κC)₂(Thf-κO)₃]⊕
Compound name(s): 
Diallyl-(tris(tetrahydrofuran))-aluminium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

trans–[Ga(Thf-κO)₂(Acac)₂]⊕

Formula Unicode styled: 
trans–[Ga(Thf-κO)₂(Acac)₂]⊕
Compound name(s): 
bis(2,4-Pentanedionato)-bis(tetrahydrofuran)-gallium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Sb(Cl)₂(Thf-κO)₂]⊕

Formula Unicode styled: 
[Sb(Cl)₂(Thf-κO)₂]⊕
Compound name(s): 
Dichloro-bis(tetrahydrofuran)-antimony(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

cis,cis,trans–[Ir(H)₂(OH₂)(PPh₃)₂(Thf-κO)]⊕

Formula Unicode styled: 
cis,cis,trans–[Ir(H)₂(OH₂)(PPh₃)₂(Thf-κO)]⊕
Compound name(s): 
Aqua-dihydrido-bis(triphenylphosphine)-tetrahydrofuran-iridium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Mn(I)(Thf-κO)₅]⊕

Formula Unicode styled: 
[Mn(I)(Thf-κO)₅]⊕
Compound name(s): 
pentakis(Tetrahydrofuran)-iodo-manganese(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Cr(Me)(Thf-κO)(PMe₃)(Cp*)]⊕

Formula Unicode styled: 
[Cr(Me)(Thf-κO)(PMe₃)(Cp*)]⊕
Compound name(s): 
(methyl)-(η⁵-pentamethylcyclopentadienyl)-(tetrahydrofuran)-(trimethylphosphine)-chromium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Yb(Bz)(Thf-κO)₅]⊕

Formula Unicode styled: 
[Yb(Bz)(Thf-κO)₅]⊕
Compound name(s): 
Benzyl-pentakis(tetrahydrofuran)-ytterbium(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«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1