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

[Lu(Thf-κO)₂{η⁵-C₅H₄(SiMe₃)}₂]⊕

Formula Unicode styled: 
[Lu(Thf-κO)₂{η⁵-C₅H₄(SiMe₃)}₂]⊕
Compound name(s): 
bis(eta$5!-Trimethylsilylcyclopentadienyl)-bis(tetrahydrofuran)-lutetium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Lu group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Lu(CH₂SiMe₃)₂(Thf-κO)(12-crown-4-κ⁴O)]⊕

Formula Unicode styled: 
[Lu(CH₂SiMe₃)₂(Thf-κO)(12-crown-4-κ⁴O)]⊕
Compound name(s): 
(Tetrahydrofuran)-(1,4,7,10-tetraoxacyclododecane)-bis((trimethylsilyl)methyl)-lutetium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Lu group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

cis–[Lu(Me)₂(Thf-κO)₄]⊕

Formula Unicode styled: 
cis–[Lu(Me)₂(Thf-κO)₄]⊕
Compound name(s): 
Dimethyl-tetrakis(tetrahydrofuran)-lutetium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Lu group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

trans–[Ce(Cl)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
trans–[Ce(Cl)₂(Thf-κO)₅]⊕
Compound name(s): 
Dichloro-pentakis(tetrahydrofuran)-cerium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Ce group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Ce(Cl)(Thf-κO)₅(O₂NO-κ²O)]⊕

Formula Unicode styled: 
[Ce(Cl)(Thf-κO)₅(O₂NO-κ²O)]⊕
Compound name(s): 
Chloro-nitrato-pentakis(tetrahydrofuran)-cerium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Ce group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

trans–[Cr(Cl)₂(Thf-κO)₄]⊕

Formula Unicode styled: 
trans–[Cr(Cl)₂(Thf-κO)₄]⊕
Compound name(s): 
Dichloro-tetrakis(tetrahydrofuran)-chromium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Cr group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Cr(Me)(Thf-κO)₂(Cp*)]⊕

Formula Unicode styled: 
[Cr(Me)(Thf-κO)₂(Cp*)]⊕
Compound name(s): 
Methyl-(η-pentamethyl-cyclopentadienyl)-bis(tetrahydrofuran-O)-chromium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Cr group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

fac–[Hf(OBuᵗ)₃(Thf-κO)₃]⊕

Formula Unicode styled: 
fac–[Hf(OBuᵗ)₃(Thf-κO)₃]⊕
Compound name(s): 
tris(t-butoxo)-tris(tetrahydrofuran)-hafnium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Hf group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Th(Ph)(Thf-κO)(Cp*)₂]⊕

Formula Unicode styled: 
[Th(Ph)(Thf-κO)(Cp*)₂]⊕
Compound name(s): 
tetrahydrofuran-phenyl-bis(η⁵-pentamethylcyclopentadienyl)-thorium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Th group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Th(Me)(Thf-κO)(Cp*)₂]⊕

Formula Unicode styled: 
[Th(Me)(Thf-κO)(Cp*)₂]⊕
Compound name(s): 
bis(η-Pentamethyl-cyclopentadienyl)-methyl-bis(tetrahydrofuran)-thorium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Th group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Th(Thf-κO)(Cp*₃)]⊕

Formula Unicode styled: 
[Th(Thf-κO)(Cp*₃)]⊕
Compound name(s): 
tris(pentamethyl-cyclopentadienyl)-tetrahydrofuran-thorium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Th group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[U(Thf-κO)(Tp*-κ³N)₂]⊕

Formula Unicode styled: 
[U(Thf-κO)(Tp*-κ³N)₂]⊕
Compound name(s): 
bis(hydrogen tris(3,5-dimethylpyrazolyl)borate)-tetrahydrofuran-uranium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
U group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[U(Thf-κO)₂(Cp*)₂]⊕

Formula Unicode styled: 
[U(Thf-κO)₂(Cp*)₂]⊕
Compound name(s): 
bis(η-Pentamethyl-cyclopentadienyl)-bis(tetrahydrofuran)-uranium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
U group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[U(Thf-κO)₂(Cp*)(η⁸-Cot)]⊕

Formula Unicode styled: 
[U(Thf-κO)₂(Cp*)(η⁸-Cot)]⊕
Compound name(s): 
(η-Cyclo-octatetraene)-(η-pentamethyl-cyclopentadienyl)-bis(tetrahydrofuran)-uranium
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
U group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[U(Thf-κO){N(SiMe₃)₂}₃]⊕

Formula Unicode styled: 
[U(Thf-κO){N(SiMe₃)₂}₃]⊕
Compound name(s): 
(tetrahydrofuran)-tris(bis(trimethylsilyl)amido)-uranium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
U group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

trans–[U(Cl)(O)₂(Thf-κO)₄]⊕

Formula Unicode styled: 
trans–[U(Cl)(O)₂(Thf-κO)₄]⊕
Compound name(s): 
Chloro-dioxo-tetrakis(tetrahydrofuran)-uranium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
U group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

trans–[Pu(I)₂(Thf-κO)₄(Py)₂]⊕

Formula Unicode styled: 
trans–[Pu(I)₂(Thf-κO)₄(Py)₂]⊕
Compound name(s): 
Diiodo-(pyridine)-tetrakis(tetrahydrofuran)-plutonium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Pu group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Pu(Cl)₂(Thf-κO)₅]⊕

Formula Unicode styled: 
[Pu(Cl)₂(Thf-κO)₅]⊕
Compound name(s): 
Dichloro-pentakis(tetrahydrofuran)-plutonium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Pu group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Li(Thf-κO)₄]⊕

Formula Unicode styled: 
[Li(Thf-κO)₄]⊕
Compound name(s): 
tetrakis(Tetrahydrofuran)-lithium
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Li group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1

[Li(Thf-κO)(12-crown-4-κ⁴O)]⊕

Formula Unicode styled: 
[Li(Thf-κO)(12-crown-4-κ⁴O)]⊕
Compound name(s): 
(THF-(12-crown-4-O,O',O'',O''')-lithium(1+)
Central atom: 
Oxygen
Attached groups: 
(CH₂)₄ (tetramethylene-κ²C)
Li group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1