4-coordinate: tetrahedron (T-4)

[Mo(Et)(NMe₂)₂]₂

Formula Unicode styled: 
[Mo(Et)(NMe₂)₂]₂
Compound name(s): 
bis-[ethyl-bis(N,N-dimethylamino)-molybdenum(Mo≡Mo)]
Central atom: 
Molybdenum
Attached groups: 
Et (ethyl)
NMe₂ (dimethylamino: planar)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Mo«V6C4OIIIE16B8Z0X6L2»
[MLXZ]𝘲 class: 
[MX6L2]
MLXZ class (ENC, equivalent neutral class): 
MX6L2

[Mo(Cl)(NMe₂)₂]₂

Formula Unicode styled: 
[Mo(Cl)(NMe₂)₂]₂
Compound name(s): 
bis-[chloro-bis(dimethylamido)molybdenum(Mo≡Mo)]
Central atom: 
Molybdenum
Attached groups: 
Cl (chloro)
NMe₂ (dimethylamino: planar)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Mo«V6C4OIIIE16B8Z0X6L2»
[MLXZ]𝘲 class: 
[MX6L2]
MLXZ class (ENC, equivalent neutral class): 
MX6L2

[Mo(CH₂SiMe₃)₂(OBuᵗ)]₂

Formula Unicode styled: 
[Mo(CH₂SiMe₃)₂(OBuᵗ)]₂
Compound name(s): 
bis-[(t-Butoxy)-bis(trimethylsilylmethyl)-molybdenum(Mo≡Mo)]
Central atom: 
Molybdenum
Attached groups: 
CH₂SiMe₃ (trimethylsilylmethyl)
OBuᵗ (t-butyloxy)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 12
Summary of calculated classifications: 
Mo«V6C4OIIIE12B6Z0L0X6»
[MLXZ]𝘲 class: 
[MX6]
MLXZ class (ENC, equivalent neutral class): 
MX6

[Mo(Bz)(NMe₂)₂]₂

Formula Unicode styled: 
[Mo(Bz)(NMe₂)₂]₂
Compound name(s): 
bis-[benzyl-bis(dimethylamido)-molybdenum(Mo≡Mo)]
Central atom: 
Molybdenum
Attached groups: 
Bz (phenylmethanido-κC)
NMe₂ (dimethylamino: planar)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Mo«V6C4OIIIE16B8Z0X6L2»
[MLXZ]𝘲 class: 
[MX6L2]
MLXZ class (ENC, equivalent neutral class): 
MX6L2

[Hf{N(SiHMe₂)₂}₄]

Formula Unicode styled: 
[Hf{N(SiHMe₂)₂}₄]
Compound name(s): 
tetrakis(bis(Dimethylsilyl)amido)-hafnium
Central atom: 
Hafnium
Attached groups: 
N(SiHMe₂)₂ (bis(dimethylsilyl)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: 
Hf«V4C4OIVE16B8Z0X4L4»
[MLXZ]𝘲 class: 
[MX4L4]
MLXZ class (ENC, equivalent neutral class): 
MX4L4

[Cr(Cl)₂(O)₂]

Formula Unicode styled: 
[Cr(Cl)₂(O)₂]
Compound name(s): 
Dichloro-dioxo-chromium
Central atom: 
Chromium
Attached groups: 
Cl (chloro)
(O)₂ (dioxo C₂ᵥ X₄L₂ Ⓢ)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (VI)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Cr«V6C4OVIE16B8Z0X6L2»
[MLXZ]𝘲 class: 
[MX6L2]
MLXZ class (ENC, equivalent neutral class): 
MX6L2

catena–1D-[V(O)₂(μ₂–O)]⊖

Formula Unicode styled: 
catena–1D-[V(O)₂(μ₂–O)]⊖
Compound name(s): 
catena-[(μ₂-oxo)-dioxo-vanadium(1-)]
Central atom: 
Vanadium
Attached groups: 
O (oxo X₂)
O (μ₂–oxo X+X)
O (μ₂–oxo X+X)
Charge on central atom: 
-1
Compound type: 
Catena-1D
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: 12
Summary of calculated classifications: 
V«V5C4OVE12B6Z0L0X6»⊖
[MLXZ]𝘲 class: 
[MX6]-
MLXZ class (ENC, equivalent neutral class): 
MX5L1

catena–1D-[Cr(O)₂(μ₂–O)]

Formula Unicode styled: 
catena–1D-[Cr(O)₂(μ₂–O)]
Compound name(s): 
catena-[trioxo-chromium]
chromium trioxide
Central atom: 
Chromium
Attached groups: 
O (oxo ⭀O X₂L)
O (μ₂–oxo X+X)
Charge on central atom: 
0
Compound type: 
Catena-1D
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (VI)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Cr«V6C4OVIE16B8Z0X6L2»
[MLXZ]𝘲 class: 
[MX6L2]
MLXZ class (ENC, equivalent neutral class): 
MX6L2

[Sr{N(SiMe₃)₂}₂(Thf)₂]

Formula Unicode styled: 
[Sr{N(SiMe₃)₂}₂(Thf)₂]
Compound name(s): 
bis(Tetrahydrofuran-O)-bis(bis(trimethylsilyl)amino)-strontium
Central atom: 
Strontium
Attached groups: 
N(SiMe₃)₂ (bis(trimethylsilyl)amino)
Thf (tetrahydrofuran)
Charge on central atom: 
0
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: 
Sr«V2C4OIIE8B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[K₂(Te)]

Formula Unicode styled: 
[K₂(Te)]
Compound name(s): 
tellurido-dipotassium|dipotassium telluride
Central atom: 
Potassium
Attached groups: 
Te (tellurido)
Charge on central atom: 
Compound type: 
Lattice
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: 0
Summary of calculated classifications: 
K«V1C4OI»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[K₂(Se)]

Formula Unicode styled: 
[K₂(Se)]
Compound name(s): 
selenido dipotassium|dipotassium selenide
Central atom: 
Potassium
Attached groups: 
Se (selenido)
Charge on central atom: 
Compound type: 
Lattice
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: 0
Summary of calculated classifications: 
K«V1C4OI»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[K₂(S)]

Formula Unicode styled: 
[K₂(S)]
Compound name(s): 
sulphido dipotassium|sulfido dipotassium|dipotassium sulfide|dipotassium sulphide
Central atom: 
Potassium
Attached groups: 
S (thio)
Charge on central atom: 
Compound type: 
Lattice
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: 0
Summary of calculated classifications: 
K«V1C4OI»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[K₂(O)]

Formula Unicode styled: 
[K₂(O)]
Compound name(s): 
oxo-dipotassium|dipotassium oxide
Central atom: 
Potassium
Attached groups: 
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
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: 0
Summary of calculated classifications: 
K«V1C4OI»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[K(Thf)₄]⊕

Formula Unicode styled: 
[K(Thf)₄]⊕
Compound name(s): 
tetrakis(tetrahydrofuran)-potassium(1+)
Central atom: 
Potassium
Attached groups: 
Thf (tetrahydrofuran)
Charge on central atom: 
1
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: 
K«V1C4OIE8B4Z0X0L4»⊕
[MLXZ]𝘲 class: 
[ML4]+
MLXZ class (ENC, equivalent neutral class): 
MX1L3

[K(OEt₂)₄]⊕

Formula Unicode styled: 
[K(OEt₂)₄]⊕
Compound name(s): 
tetrakis(Diethyl ether)-potassium(1+)
Central atom: 
Potassium
Attached groups: 
OEt₂ (diethylether)
Charge on central atom: 
1
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: 
K«V1C4OIE8B4Z0X0L4»⊕
[MLXZ]𝘲 class: 
[ML4]+
MLXZ class (ENC, equivalent neutral class): 
MX1L3

catena–1D-[K(μ₂-NPh₂)(Phen)]

Formula Unicode styled: 
catena–1D-[K(μ₂-NPh₂)(Phen)]
Compound name(s): 
catena-[(μ₂-bis(diphenylazanido))-(1,10-phenanthroline)-potassium]
Central atom: 
Potassium
Attached groups: 
NPh₂ (μ₂-diphenylamino)
Phen (phenanthroline)
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: 
K«V1C4OIE8B4Z0X1L3»
[MLXZ]𝘲 class: 
[MX1L3]
MLXZ class (ENC, equivalent neutral class): 
MX1L3

catena–1D-[K{C(SiMe₃)₃}(TMEDA-κ²N)]

Formula Unicode styled: 
catena–1D-[K{C(SiMe₃)₃}(TMEDA-κ²N)]
Compound name(s): 
catena-[(Trimethylsilyl-methyl)-tetramethylethylenediamine-potassium]
Central atom: 
Potassium
Attached groups: 
C(SiMe₃)₃ (tristrimethylsilylmethyl)
TMEDA (tetramethylethylenediamine-κ²N)
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: 
K«V1C4OIE8B4Z0X1L3»
[MLXZ]𝘲 class: 
[MX1L3]
MLXZ class (ENC, equivalent neutral class): 
MX1L3

[Ca{N(SiMe₃)₂}₂(Thf)₂]

Formula Unicode styled: 
[Ca{N(SiMe₃)₂}₂(Thf)₂]
Compound name(s): 
bis(Tetrahydrofuran-O)-bis(bis(trimethylsilyl)amino)-calcium
Central atom: 
Calcium
Attached groups: 
N(SiMe₃)₂ (bis(trimethylsilyl)amino)
Thf (tetrahydrofuran)
Charge on central atom: 
0
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: 
Ca«V2C4OIIE8B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Ca{N(SiMe₃)₂}₂(OPPh₃)₂]

Formula Unicode styled: 
[Ca{N(SiMe₃)₂}₂(OPPh₃)₂]
Compound name(s): 
bis(bis(Trimethylsilyl)amido)-bis(triphenylphosphine oxide)-calcium
Central atom: 
Calcium
Attached groups: 
N(SiMe₃)₂ (bis(trimethylsilyl)amino)
OPPh₃ (triphenylphosphane oxide)
Charge on central atom: 
0
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: 
Ca«V2C4OIIE8B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Ca{CH(SiMe₃)₂}₂(Thf)₂]

Formula Unicode styled: 
[Ca{CH(SiMe₃)₂}₂(Thf)₂]
Compound name(s): 
bis(bis(Trimethylsilyl)methyl)-bis(tetrahydrofuran)-calcium
Central atom: 
Calcium
Attached groups: 
CH(SiMe₃)₂ (bistrimethylsilylmethyl)
Thf (tetrahydrofuran)
Charge on central atom: 
0
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: 
Ca«V2C4OIIE8B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2