4-coordinate: tetrahedron (T-4)

[W(OSiBuᵗ₃)₃(CO)]

Formula Unicode styled: 
[W(OSiBuᵗ₃)₃(CO)]
Compound name(s): 
Carbonyl-tris(tri-t-butylsiloxy)-tungsten
Central atom: 
Tungsten
Attached groups: 
OSiBuᵗ₃ (tri-t-butylsiloxy)
CO (carbonyl)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 11
Summary of calculated classifications: 
W«V3C4OIIIE11B4Z0X3L1»
[MLXZ]𝘲 class: 
[MX3L1]
MLXZ class (ENC, equivalent neutral class): 
MX3L1

[W(NEt₂)₃(N)]

Formula Unicode styled: 
[W(NEt₂)₃(N)]
Compound name(s): 
tris(Diethylamide)-nitrido-tungsten
Central atom: 
Tungsten
Attached groups: 
NEt₂ (diethylamino: planar)
N (nitrido; ≡N)
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: 18
Summary of calculated classifications: 
W«V6C4OVIE18B9Z0X6L3»
[MLXZ]𝘲 class: 
[MX6L3]
MLXZ class (ENC, equivalent neutral class): 
MX6L3

[W(NHBuᵗ)₂(⭀NBuᵗ)₂]

Formula Unicode styled: 
[W(NHBuᵗ)₂(⭀NBuᵗ)₂]
Compound name(s): 
bis-(t-Butylimido)-bis-(t-butylamino)-tungsten
Central atom: 
Tungsten
Attached groups: 
NHBuᵗ (t-butylamino: planar)
(⭀NBuᵗ)₂ (di(⭀NBuᵗ t-butylimino)-cis X₄L Ⓢ)
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: 18
Summary of calculated classifications: 
W«V6C4OVIE18B9Z0X6L3»
[MLXZ]𝘲 class: 
[MX6L3]
MLXZ class (ENC, equivalent neutral class): 
MX6L3

[W(Me)(OSiBuᵗ₃)₃]

Formula Unicode styled: 
[W(Me)(OSiBuᵗ₃)₃]
Compound name(s): 
tris(tris(t-butyl)silanolato)-methyl-tungsten
Central atom: 
Tungsten
Attached groups: 
Me (methyl)
OSiBuᵗ₃ (tri-t-butylsiloxy)
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: 10
Summary of calculated classifications: 
W«V4C4OIVE10B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[W(PMe₃)(PhC≡CH)₃]

Formula Unicode styled: 
[W(PMe₃)(PhC≡CH)₃]
Compound name(s): 
Trimethylphosphine-tris(η-phenylacetylene)-tungsten
Central atom: 
Tungsten
Attached groups: 
PMe₃ (trimethylphosphane)
(PhC≡CH)₃ (tris-(phenylethyne) Ⓢ)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 0
Oxidation Number (ON) (Roman numerals): 
ON: (O)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
W«V0C4OOE18B6Z0X0L6»
[MLXZ]𝘲 class: 
[ML6]
MLXZ class (ENC, equivalent neutral class): 
ML6

[W(PMe₃)(PhC≡CPh)₃]

Formula Unicode styled: 
[W(PMe₃)(PhC≡CPh)₃]
Compound name(s): 
tris(η-Diphenylethyne)-(trimethylphosphine)-tungsten
Central atom: 
Tungsten
Attached groups: 
PMe₃ (trimethylphosphane)
(PhC≡CPh)₃ (tris-(diphenylethyne) Ⓢ)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 0
Oxidation Number (ON) (Roman numerals): 
ON: (O)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
W«V0C4OOE18B6Z0X0L6»
[MLXZ]𝘲 class: 
[ML6]
MLXZ class (ENC, equivalent neutral class): 
ML6

[W(NMe₂)₃(N)]

Formula Unicode styled: 
[W(NMe₂)₃(N)]
Compound name(s): 
Nitrido-tris(dimethylamino)-tungsten
Central atom: 
Tungsten
Attached groups: 
NMe₂ (dimethylamino: planar)
N (nitrido; ≡N)
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: 18
Summary of calculated classifications: 
W«V6C4OVIE18B9Z0X6L3»
[MLXZ]𝘲 class: 
[MX6L3]
MLXZ class (ENC, equivalent neutral class): 
MX6L3

[W(OSiBuᵗ₃)₃(≡CPh)]

Formula Unicode styled: 
[W(OSiBuᵗ₃)₃(≡CPh)]
Compound name(s): 
(Phenylmethylidyne)-tris(tris(t-butoxy)silanolato)-tungsten
Central atom: 
Tungsten
Attached groups: 
OSiBuᵗ₃ (tri-t-butylsiloxy)
≡CPh (phenylmethylidyne, benzylidyne)
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: 12
Summary of calculated classifications: 
W«V6C4OVIE12B6Z0L0X6»
[MLXZ]𝘲 class: 
[MX6]
MLXZ class (ENC, equivalent neutral class): 
MX6

[W(SH)(S)₃]⊖

Formula Unicode styled: 
[W(SH)(S)₃]⊖
Compound name(s): 
(hydrogensulfido-S)-trisulfido-tungsten(1-)
Central atom: 
Tungsten
Attached groups: 
SH (hydrothio)
S (thio)
Charge on central atom: 
-1
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: 14
Summary of calculated classifications: 
W«V6C4OVIE14B7Z0L0X7»⊖
[MLXZ]𝘲 class: 
[MX7]-
MLXZ class (ENC, equivalent neutral class): 
MX6L1

[W(SnPh₃)(PhC≡CPh)₃]⊖

Formula Unicode styled: 
[W(SnPh₃)(PhC≡CPh)₃]⊖
Compound name(s): 
Tetraethylammonium tris(η-diphenylacetylene)-(triphenyl-tin)-tungsten(1-)
Central atom: 
Tungsten
Attached groups: 
SnPh₃ (triphenylstannyl)
(PhC≡CPh)₃ (tris-(diphenylethyne) Ⓢ)
Charge on central atom: 
-1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 0
Oxidation Number (ON) (Roman numerals): 
ON: (O)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
W«V0C4OOE18B6Z0X1L5»⊖
[MLXZ]𝘲 class: 
[MX1L5]-
MLXZ class (ENC, equivalent neutral class): 
ML6

[W(O)₄]²⊖

Formula Unicode styled: 
[W(O)₄]²⊖
Compound name(s): 
tungstate(2-)
Central atom: 
Tungsten
Attached groups: 
(O)₄ (tetraoxo X₈L Ⓢ)
Charge on central atom: 
-2
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: 18
Summary of calculated classifications: 
W«V6C4OVIE18B9Z0X8L1»2⊖
[MLXZ]𝘲 class: 
[MX8L1]2-
MLXZ class (ENC, equivalent neutral class): 
MX6L3

[W(S)₄]²⊖

Formula Unicode styled: 
[W(S)₄]²⊖
Compound name(s): 
tetrathiotungstate(2-)
Central atom: 
Tungsten
Attached groups: 
(S)₄ (tetrathio X₈L Ⓢ)
Charge on central atom: 
-2
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: 18
Summary of calculated classifications: 
W«V6C4OVIE18B9Z0X8L1»2⊖
[MLXZ]𝘲 class: 
[MX8L1]2-
MLXZ class (ENC, equivalent neutral class): 
MX6L3

[W(Se)₄]²⊖

Formula Unicode styled: 
[W(Se)₄]²⊖
Compound name(s): 
tetraseleno-tungsten(2-)
Central atom: 
Tungsten
Attached groups: 
(Se)₄ (tetraseleno X₈L Ⓢ)
Charge on central atom: 
-2
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: 18
Summary of calculated classifications: 
W«V6C4OVIE18B9Z0X8L1»2⊖
[MLXZ]𝘲 class: 
[MX8L1]2-
MLXZ class (ENC, equivalent neutral class): 
MX6L3

[Re(Xy){(O)₃}]

Formula Unicode styled: 
[Re(Xy){(O)₃}]
Compound name(s): 
(2,6-dimethylphenyl)-trioxo-rhenium
Central atom: 
Rhenium
Attached groups: 
Xy (xylyl)
(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: 
Re«V7C4OVIIE18B9Z0X7L2»
[MLXZ]𝘲 class: 
[MX7L2]
MLXZ class (ENC, equivalent neutral class): 
MX7L2

[Re(Xy)₂(⭀NBuᵗ)₂]

Formula Unicode styled: 
[Re(Xy)₂(⭀NBuᵗ)₂]
Compound name(s): 
Di-t-butylimido-dixyxlyl-rhenium
Central atom: 
Rhenium
Attached groups: 
Xy (xylyl)
⭀NBuᵗ (⭀N t-butylimino)
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: 17
Summary of calculated classifications: 
Re«V6C4OVIE17B8Z0X6L2»
[MLXZ]𝘲 class: 
[MX6L2]
MLXZ class (ENC, equivalent neutral class): 
MX6L2

[Re(S)₄]⊖

Formula Unicode styled: 
[Re(S)₄]⊖
Compound name(s): 
tetrathio-rhenium(1-)
Central atom: 
Rhenium
Attached groups: 
(S)₄ (tetrathio X₈L Ⓢ)
Charge on central atom: 
-1
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: 
Re«V7C4OVIIE18B9Z0X8L1»⊖
[MLXZ]𝘲 class: 
[MX8L1]-
MLXZ class (ENC, equivalent neutral class): 
MX7L2

[Re(O)₄]⊖

Formula Unicode styled: 
[Re(O)₄]⊖
Compound name(s): 
perrhenate(1-)
Central atom: 
Rhenium
Attached groups: 
(O)₄ (tetraoxo X₈L Ⓢ)
Charge on central atom: 
-1
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: 
Re«V7C4OVIIE18B9Z0X8L1»⊖
[MLXZ]𝘲 class: 
[MX8L1]-
MLXZ class (ENC, equivalent neutral class): 
MX7L2

[Re(I)(O)(MeC≡CMe)₂]

Formula Unicode styled: 
[Re(I)(O)(MeC≡CMe)₂]
Compound name(s): 
bis(etacirpau-But-2-yne)-oxo-iodo-rhenium
Central atom: 
Rhenium
Attached groups: 
I (iodo)
O (oxo X₂)
MeC≡CMe (butyne L₂)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Re«V3C4OIIIE18B7Z0X3L4»
[MLXZ]𝘲 class: 
[MX3L4]
MLXZ class (ENC, equivalent neutral class): 
MX3L4

[Re(Et)(O)(MeC≡CMe)₂]

Formula Unicode styled: 
[Re(Et)(O)(MeC≡CMe)₂]
Compound name(s): 
ethyl-oxo-bis(η²-butyne)-rhenium
Central atom: 
Rhenium
Attached groups: 
Et (ethyl)
O (oxo X₂)
MeC≡CMe (butyne L₂)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Re«V3C4OIIIE18B7Z0X3L4»
[MLXZ]𝘲 class: 
[MX3L4]
MLXZ class (ENC, equivalent neutral class): 
MX3L4

[Re(I)(S)(MeC≡CMe)₂]

Formula Unicode styled: 
[Re(I)(S)(MeC≡CMe)₂]
Compound name(s): 
bis(2,3-eta-But-2-yne)-iodo-sulfido-rhenium
Central atom: 
Rhenium
Attached groups: 
I (iodo)
S (thio)
MeC≡CMe (butyne L₂)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Re«V3C4OIIIE18B7Z0X3L4»
[MLXZ]𝘲 class: 
[MX3L4]
MLXZ class (ENC, equivalent neutral class): 
MX3L4