4-coordinate: tetrahedron (T-4)

[Be(En)₂]²⊕

Formula Unicode styled: 
[Be(En)₂]²⊕
Compound name(s): 
bis(ethane-1,2-diamine)-beryllium(2+)
Central atom: 
Beryllium
Attached groups: 
En (ethylenediamine)
Charge on central atom: 
2
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Be«V2C4OIIE8B4Z0X0L4»2⊕
[MLXZ]𝘲 class: 
[ML4]2+
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Li(μ₂-Cl)(Thf)₂]₂

Formula Unicode styled: 
[Li(μ₂-Cl)(Thf)₂]₂
Compound name(s): 
bis(μ-chloro)-tetrakis(tetrahydrofuran)-dil-lithium
Central atom: 
Lithium
Attached groups: 
Cl (μ₂-chloro)
Thf (tetrahydrofuran)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Li«V1C4OIE8B4Z0X1L3»
[MLXZ]𝘲 class: 
[MX1L3]
MLXZ class (ENC, equivalent neutral class): 
MX1L3

[Li(μ₂-NCS-κ²N)(Thf)₂]₂

Formula Unicode styled: 
[Li(μ₂-NCS-κ²N)(Thf)₂]₂
Compound name(s): 
bis(μ-isothiocyanato)-tetrakis(tetrahydrofuran)-di-lithium
Central atom: 
Lithium
Attached groups: 
NCS (μ₂-isothiocyanato-κ²N)
Thf (tetrahydrofuran)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Li«V1C4OIE8B4Z0X1L3»
[MLXZ]𝘲 class: 
[MX1L3]
MLXZ class (ENC, equivalent neutral class): 
MX1L3

[Li{μ₂-As(SiMe₃)₂}(Dme)]₂

Formula Unicode styled: 
[Li{μ₂-As(SiMe₃)₂}(Dme)]₂
Compound name(s): 
bis[(μ₂-bis(trimethylsilyl)-arsenic)-(1,2-dimethoxyethane)-lithium]
Central atom: 
Lithium
Attached groups: 
As(SiMe₃)₂ (μ₂-bistrimethylsilylarsanyl)
Dme (dimethoxyethane)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Li«V1C4OIE8B4Z0X1L3»
[MLXZ]𝘲 class: 
[MX1L3]
MLXZ class (ENC, equivalent neutral class): 
MX1L3

catena–1D-[Li(μ₂-OH₂)(μ₂-O₂CMe)]

Formula Unicode styled: 
catena–1D-[Li(μ₂-OH₂)(μ₂-O₂CMe)]
Compound name(s): 
catena-(μ₂-Aqua)-(μ₂-acetato-O,O')-lithium
Central atom: 
Lithium
Attached groups: 
OH₂ (μ₂-aqua)
O₂CMe (μ₂-acetato)
Charge on central atom: 
0
Compound type: 
Catena-1D
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Li«V1C4OIE8B4Z0X1L3»
[MLXZ]𝘲 class: 
[MX1L3]
MLXZ class (ENC, equivalent neutral class): 
MX1L3

[Li(STol)(Py)₃]

Formula Unicode styled: 
[Li(STol)(Py)₃]
Compound name(s): 
o-tolylthiolato-tripyridyl-lithium
Central atom: 
Lithium
Attached groups: 
STol (tolylthio)
Py (pyridine)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Li«V1C4OIE8B4Z0X1L3»
[MLXZ]𝘲 class: 
[MX1L3]
MLXZ class (ENC, equivalent neutral class): 
MX1L3

[Li{CH(SiMe₃)₂}(Pmdta-κ³N)]

Formula Unicode styled: 
[Li{CH(SiMe₃)₂}(Pmdta-κ³N)]
Compound name(s): 
bis(trimethylsilyl)methyl-(pentamethyldiethylenetriamine)-lithium
Central atom: 
Lithium
Attached groups: 
CH(SiMe₃)₂ (bistrimethylsilylmethyl)
Pmdta (pentamethyldiethylenetriamine-κ³N)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Li«V1C4OIE8B4Z0X1L3»
[MLXZ]𝘲 class: 
[MX1L3]
MLXZ class (ENC, equivalent neutral class): 
MX1L3

catena–3D-[Li₂(NCN)]

Formula Unicode styled: 
catena–3D-[Li₂(NCN)]
Compound name(s): 
Dilithium carbodiimide
Central atom: 
Lithium
Attached groups: 
NCN (cyanoimido)
Charge on central atom: 
0
Compound type: 
Catena-3D
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Li«V1C3.5OIE8B4Z0X1L3»
[MLXZ]𝘲 class: 
[MX1L3]
MLXZ class (ENC, equivalent neutral class): 
MX1L3

catena–3D-[Li₂(Ox)]

Formula Unicode styled: 
catena–3D-[Li₂(Ox)]
Compound name(s): 
Lithium oxalate
oxalato-dlithium
Central atom: 
Lithium
Attached groups: 
Ox (oxalato)
Charge on central atom: 
0
Compound type: 
Catena-3D
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Li«V1C4OIE8B4Z0X1L3»
[MLXZ]𝘲 class: 
[MX1L3]
MLXZ class (ENC, equivalent neutral class): 
MX1L3

catena–2D-[Li(OH₂)(μ₃-O₂CH)]

Formula Unicode styled: 
catena–2D-[Li(OH₂)(μ₃-O₂CH)]
Compound name(s): 
catena-aqua-formato-lithium
lithium formate monohydrate
Central atom: 
Lithium
Attached groups: 
OH₂ (aqua)
O₂CH (μ₃-formato)
Charge on central atom: 
0
Compound type: 
Catena-2D
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Li«V1C4OIE8B4Z0X1L3»
[MLXZ]𝘲 class: 
[MX1L3]
MLXZ class (ENC, equivalent neutral class): 
MX1L3

[Th(OC₆H₃Buᵗ₂-2,6)₄]

Formula Unicode styled: 
[Th(OC₆H₃Buᵗ₂-2,6)₄]
Compound name(s): 
tetrakis(2,6-di-t-butylphenolato)-thorium
Central atom: 
Thorium
Attached groups: 
OC₆H₃Buᵗ₂-2,6 (di-t-butylphenoxy-2,6)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Th«V4C4OIVE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Np(OC₆H₃Buᵗ₂-2,6)₄]

Formula Unicode styled: 
[Np(OC₆H₃Buᵗ₂-2,6)₄]
Compound name(s): 
tetrakis(2,6-di-t-butylphenolato)-neptunium
Central atom: 
Neptunium
Attached groups: 
OC₆H₃Buᵗ₂-2,6 (di-t-butylphenoxy-2,6)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 11
Summary of calculated classifications: 
Np«V4C4OIVE11B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Tc(OGePh₃){(O)₃}]

Formula Unicode styled: 
[Tc(OGePh₃){(O)₃}]
Compound name(s): 
(μ₂-oxo)-trioxo-germanium-technetium
Central atom: 
Technetium
Attached groups: 
OGePh₃ (triphenylgermanoxy)
(O)₃ (trioxo X₆L₂ Ⓢ)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 7
Oxidation Number (ON) (Roman numerals): 
ON: (VII)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Tc«V7C4OVIIE18B9Z0X7L2»
[MLXZ]𝘲 class: 
[MX7L2]
MLXZ class (ENC, equivalent neutral class): 
MX7L2

[Th(OCPh₃)₂{N(SiMe₃)₂}₂]

Formula Unicode styled: 
[Th(OCPh₃)₂{N(SiMe₃)₂}₂]
Compound name(s): 
bis(bis(trimethylsilyl)amido)-bis(triphenylmethanolato)-thorium
Central atom: 
Thorium
Attached groups: 
OCPh₃ (triphenylmethoxy)
N(SiMe₃)₂ (bis(trimethylsilyl)amino: planar)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Th«V4C4OIVE16B8Z0X4L4»
[MLXZ]𝘲 class: 
[MX4L4]
MLXZ class (ENC, equivalent neutral class): 
MX4L4

[Th(SCPh₃){N(SiMe₃)₂}₃]

Formula Unicode styled: 
[Th(SCPh₃){N(SiMe₃)₂}₃]
Compound name(s): 
tris(bis(trimethylsilyl)amido)-(triphenylmethanethiolato)-thorium
Central atom: 
Thorium
Attached groups: 
SCPh₃ (triphenylmethylthio)
N(SiMe₃)₂ (bis(trimethylsilyl)amino: planar)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 14
Summary of calculated classifications: 
Th«V4C4OIVE14B7Z0X4L3»
[MLXZ]𝘲 class: 
[MX4L3]
MLXZ class (ENC, equivalent neutral class): 
MX4L3

[Th(NMePh)₂{N(SiMe₃)₂}₂]

Formula Unicode styled: 
[Th(NMePh)₂{N(SiMe₃)₂}₂]
Compound name(s): 
bis(Methylphenylamido)-bis(bis(trimethylsilyl)amido)-thorium
Central atom: 
Thorium
Attached groups: 
NMePh (methylphenylamino)
N(SiMe₃)₂ (bis(trimethylsilyl)amino: planar)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Th«V4C4OIVE16B8Z0X4L4»
[MLXZ]𝘲 class: 
[MX4L4]
MLXZ class (ENC, equivalent neutral class): 
MX4L4

[Be(Ph)(μ₂-NPh₂)]₂

Formula Unicode styled: 
[Be(Ph)(μ₂-NPh₂)]₂
Compound name(s): 
bis(μ-diphenylamido)-diphenyl-di-beryllium
Central atom: 
Beryllium
Attached groups: 
Ph (phenyl)
NPh₂ (μ₂-diphenylamino)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Be«V2C4OIIE8B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Ta(OBuᵗ)₃(=PPh)]

Formula Unicode styled: 
[Ta(OBuᵗ)₃(=PPh)]
Compound name(s): 
Phenylphosphinidene)-tris(tri-t-butylsiloxy)-tantalum
Central atom: 
Tantalum
Attached groups: 
OBuᵗ (t-butyloxy)
=PPh (phenylphosphinidine)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Ta«V5C4OVE10B5Z0L0X5»
[MLXZ]𝘲 class: 
[MX5]
MLXZ class (ENC, equivalent neutral class): 
MX5

network–[Po(Mg)]

Formula Unicode styled: 
network–[Po(Mg)]
Compound name(s): 
magnesium polonide
magnesium polonium
Central atom: 
Polonium
Attached groups: 
Mg (magnesio)
Charge on central atom: 
0
Compound type: 
Network
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Po«V6C6O-IIE8B4L0X2Z2»
[MLXZ]𝘲 class: 
[MX2Z2]
MLXZ class (ENC, equivalent neutral class): 
MX2Z2

network–[Po(Cd)]

Formula Unicode styled: 
network–[Po(Cd)]
Compound name(s): 
cadmium polonide
cadmium polonium
Central atom: 
Polonium
Attached groups: 
Cd (cadmio)
Charge on central atom: 
0
Compound type: 
Network
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Po«V6C4O-IIE8B4L0X2Z2»
[MLXZ]𝘲 class: 
[MX2Z2]
MLXZ class (ENC, equivalent neutral class): 
MX2Z2