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

trans–[Dy(Cl)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
trans–[Dy(Cl)₂(Thf-κO)₅]⊕
Compound name(s): 
Dichloro-pentakis(tetrahydrofuran)-dysprosium(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

[Tb(I)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
[Tb(I)₂(Thf-κO)₅]⊕
Compound name(s): 
diiodo-pentakis(tetrahydrofuran)-terbium(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

[Tb(Cl)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
[Tb(Cl)₂(Thf-κO)₅]⊕
Compound name(s): 
Dichloro-pentakis(tetrahydrofuran)-terbium(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

[Dy(NH₃)(Thf-κO)(Cp*)₂]⊕

Formula Unicode styled: 
[Dy(NH₃)(Thf-κO)(Cp*)₂]⊕
Compound name(s): 
bis(η⁵-pentamethylcyclopentadienyl)-ammonia-(tetrahydrofuran)-dysprosium(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–[Na(Thf-κO)₂(18-crown-6-κ⁶O)]⊕

Formula Unicode styled: 
trans–[Na(Thf-κO)₂(18-crown-6-κ⁶O)]⊕
Compound name(s): 
bis(tetrahydrofuran)-(18-crown-6)-sodium(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

[Na(Thf-κO)₆]⊕

Formula Unicode styled: 
[Na(Thf-κO)₆]⊕
Compound name(s): 
hexakis(Tetrahydrofuran)-sodium(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

[K(Thf-κO)₂(18-crown-6-κ⁶O)]⊕

Formula Unicode styled: 
[K(Thf-κO)₂(18-crown-6-κ⁶O)]⊕
Compound name(s): 
bis(tetrahydrofuran)-(18-crown-6)-potassium(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

[Cs(Thf-κO)₇]⊕

Formula Unicode styled: 
[Cs(Thf-κO)₇]⊕
Compound name(s): 
heptakis(tetrahydrofuran)-cesium(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–[Lu(Cl)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
trans–[Lu(Cl)₂(Thf-κO)₅]⊕
Compound name(s): 
Dichloro-pentakis(tetrahydrofuran)-lutetium(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

[Sc(μ₂-Cl)(Thf-κO)₂(Cp)]₂²⊕

Formula Unicode styled: 
[Sc(μ₂-Cl)(Thf-κO)₂(Cp)]₂²⊕
Compound name(s): 
bis-[(μ₂-chloro)-(η⁵-cyclopentadienyl)-bis(tetrahydrofuran)-scandium]
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

[Sc(CH₂SiMe₃)(Thf-κO)₂{η⁵-C₅(SiMe₃)Me₄}]⊕

Formula Unicode styled: 
[Sc(CH₂SiMe₃)(Thf-κO)₂{η⁵-C₅(SiMe₃)Me₄}]⊕
Compound name(s): 
(η⁵-Tetramethyl(trimethylsilyl)cyclopentadienyl)-trimethylsilylmethyl-bis(tetrahydrofuran)-scandium
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

[Ho(Me)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
[Ho(Me)₂(Thf-κO)₅]⊕
Compound name(s): 
Dimethyl-pentakis(tetrahydrofuran)-holmium(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

[Er(Cl)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
[Er(Cl)₂(Thf-κO)₅]⊕
Compound name(s): 
Dichloro-pentakis(tetrahydrofuran)-erbium(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

[Gd(Cl)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
[Gd(Cl)₂(Thf-κO)₅]⊕
Compound name(s): 
Dichloro-pentakis(tetrahydrofuran)-gadolinium(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

[Eu(C₆F₅)(Thf-κO)₆]⊕

Formula Unicode styled: 
[Eu(C₆F₅)(Thf-κO)₆]⊕
Compound name(s): 
(Pentafluorophenyl)-hexakis(tetrahydrofuran)-europium(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

[Eu(Br)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
[Eu(Br)₂(Thf-κO)₅]⊕
Compound name(s): 
Dibromo-pentakis(tetrahydrofuran)-europium(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

[Sm(Thf-κO)₂{η⁵-C₅H₃(SiMe₃)₂}₂]⊕

Formula Unicode styled: 
[Sm(Thf-κO)₂{η⁵-C₅H₃(SiMe₃)₂}₂]⊕
Compound name(s): 
bis(1,3-bis(trimethylsilyl)cyclopentadienyl)-(tetrahydrofuran)-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

[Sm(Thf-κO)₂(Cp*)₂]⊕

Formula Unicode styled: 
[Sm(Thf-κO)₂(Cp*)₂]⊕
Compound name(s): 
bis(η⁵-Pentamethyl-cyclopentadienyl)-bis(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

[Sm(Thf-κO)(H₂NNH₂)(Cp*)₂]⊕

Formula Unicode styled: 
[Sm(Thf-κO)(H₂NNH₂)(Cp*)₂]⊕
Compound name(s): 
bis(η⁵-Pentamethyl-cyclopentadienyl)-hydrazine-tetrahydrofuran-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

[Sm(Me)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
[Sm(Me)₂(Thf-κO)₅]⊕
Compound name(s): 
Dimethyl-pentakis(tetrahydrofuran)-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