4-coordinate: tetrahedron (T-4)

[Os(Cy)₄]

Formula Unicode styled: 
[Os(Cy)₄]
Compound name(s): 
tetrakis(Cyclohexyl)-osmium
Central atom: 
Osmium
Attached groups: 
Cy (cyclohexyl)
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: 12
Summary of calculated classifications: 
Os«V4C4OIVE12B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Os(Mes)₂(⭀NBuᵗ)(O)]

Formula Unicode styled: 
[Os(Mes)₂(⭀NBuᵗ)(O)]
Compound name(s): 
(t-Butylimido)-oxo-bis(2,4,6-trimethylphenyl)-osmium
Central atom: 
Osmium
Attached groups: 
Mes (mesityl)
⭀NBuᵗ (⭀N t-butylimino)
O (oxo X₂)
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: 
Os«V6C4OVIE16B7Z0X6L1»
[MLXZ]𝘲 class: 
[MX6L1]
MLXZ class (ENC, equivalent neutral class): 
MX6L1

[Os(=NBuᵗ)(O)₃]

Formula Unicode styled: 
[Os(=NBuᵗ)(O)₃]
Compound name(s): 
t-Butylimido-trioxo-osmium
Central atom: 
Osmium
Attached groups: 
=NBuᵗ (t-butylimino)
O (oxo X₂)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 8
Oxidation Number (ON) (Roman numerals): 
ON: (VIII)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Os«V8C4OVIIIE16B8Z0L0X8»
[MLXZ]𝘲 class: 
[MX8]
MLXZ class (ENC, equivalent neutral class): 
MX8

[Os(CS)(PPh₃)₂(PhC≡CPh)]

Formula Unicode styled: 
[Os(CS)(PPh₃)₂(PhC≡CPh)]
Compound name(s): 
(η-Diphenylacetylene)-thiocarbonyl-bis(triphenylphosphine)-osmium
Central atom: 
Osmium
Attached groups: 
CS (thiocarbonyl)
PPh₃ (triphenylphosphane)
PhC≡CPh (diphenylethyne L₂)
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: 
Os«V0C4OOE18B5Z0X0L5»
[MLXZ]𝘲 class: 
[ML5]
MLXZ class (ENC, equivalent neutral class): 
ML5

[Os(Me₃CC≡CCMe₃)(PMe₃)₃]

Formula Unicode styled: 
[Os(Me₃CC≡CCMe₃)(PMe₃)₃]
Compound name(s): 
(η-1,2-Di-t-butylethyne)-tris(trimethylphosphine)-osmium
Central atom: 
Osmium
Attached groups: 
Me₃CC≡CCMe₃ (di-t-butyl-ethyne L₂)
PMe₃ (trimethylphosphane)
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: 
Os«V0C4OOE18B5Z0X0L5»
[MLXZ]𝘲 class: 
[ML5]
MLXZ class (ENC, equivalent neutral class): 
ML5

[Os(NO)₂(PPh₃)₂]

Formula Unicode styled: 
[Os(NO)₂(PPh₃)₂]
Compound name(s): 
Dinitrosyl-bis(triphenylphosphine) osmium
Central atom: 
Osmium
Attached groups: 
(NO)₂ (dinitrosyl, (N≡O)₂ tetrahedral Ⓢ)
PPh₃ (triphenylphosphane)
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: 18
Summary of calculated classifications: 
Os«V2C4O-IIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Os(Mes)₂(O)₂]

Formula Unicode styled: 
[Os(Mes)₂(O)₂]
Compound name(s): 
Dimesityl-dioxo-osmium
Central atom: 
Osmium
Attached groups: 
Mes (mesityl)
(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: 18
Summary of calculated classifications: 
Os«V6C4OVIE18B8Z0X6L2»
[MLXZ]𝘲 class: 
[MX6L2]
MLXZ class (ENC, equivalent neutral class): 
MX6L2

[Os(=NBuᵗ)(⭀NBuᵗ)(O)₂]

Formula Unicode styled: 
[Os(=NBuᵗ)(⭀NBuᵗ)(O)₂]
Compound name(s): 
bis(N-t-Butylimido)-dioxo-osmium
Central atom: 
Osmium
Attached groups: 
=NBuᵗ (t-butylimino)
⭀NBuᵗ (⭀N t-butylimino)
O (oxo X₂)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 8
Oxidation Number (ON) (Roman numerals): 
ON: (VIII)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Os«V8C4OVIIIE18B9Z0X8L1»
[MLXZ]𝘲 class: 
[MX8L1]
MLXZ class (ENC, equivalent neutral class): 
MX8L1

[Os(NO)₂(Dppe-κ²P)]

Formula Unicode styled: 
[Os(NO)₂(Dppe-κ²P)]
Compound name(s): 
(1,2-bis(Diphenylphosphino)ethane)-dinitrosyl-osmium
Central atom: 
Osmium
Attached groups: 
(NO)₂ (dinitrosyl, (N≡O)₂ tetrahedral Ⓢ)
Dppe (1,2-bis-(diphenylphosphino)ethane-κ²P)
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: 18
Summary of calculated classifications: 
Os«V2C4O-IIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Th(I){N(SiMe₃)₂}₃]

Formula Unicode styled: 
[Th(I){N(SiMe₃)₂}₃]
Compound name(s): 
tris(bis(trimethylsilyl)amido)-iodo-thorium
Central atom: 
Thorium
Attached groups: 
I (iodo)
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(OC₆H₃Ph₂-2,6)₄]

Formula Unicode styled: 
[Th(OC₆H₃Ph₂-2,6)₄]
Compound name(s): 
tetrakis(2,6-Diphenylphenoxy)-thorium
Central atom: 
Thorium
Attached groups: 
OC₆H₃Ph₂-2,6 (diphenylphenoxy-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

[U(Cl){N(SiMe₃)₂}₃]

Formula Unicode styled: 
[U(Cl){N(SiMe₃)₂}₃]
Compound name(s): 
tris(bis(trimethylsilyl)amido)-chloro-uranium
Central atom: 
Uranium
Attached groups: 
Cl (chloro)
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: 
U«V4C4OIVE16B7Z0X4L3»
[MLXZ]𝘲 class: 
[MX4L3]
MLXZ class (ENC, equivalent neutral class): 
MX4L3

[U{N(SiMe₃)₂}₄]

Formula Unicode styled: 
[U{N(SiMe₃)₂}₄]
Compound name(s): 
tetrakis(bis(dimethylsilyl)amido)-uranium
Central atom: 
Uranium
Attached groups: 
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: 18
Summary of calculated classifications: 
U«V4C4OIVE18B8Z0X4L4»
[MLXZ]𝘲 class: 
[MX4L4]
MLXZ class (ENC, equivalent neutral class): 
MX4L4

[U(Thf){N(SiMe₃)₂}₃]⊕

Formula Unicode styled: 
[U(Thf){N(SiMe₃)₂}₃]⊕
Compound name(s): 
(tetrahydrofuran)-tris(bis(trimethylsilyl)amido)-uranium(1+)
Central atom: 
Uranium
Attached groups: 
Thf (tetrahydrofuran)
N(SiMe₃)₂ (bis(trimethylsilyl)amino: planar)
Charge on central atom: 
1
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: 
U«V4C4OIVE16B7Z0X3L4»⊕
[MLXZ]𝘲 class: 
[MX3L4]+
MLXZ class (ENC, equivalent neutral class): 
MX4L3

[U(SO₃CF₃-κO){N(SiMe₃)₂}₃]

Formula Unicode styled: 
[U(SO₃CF₃-κO){N(SiMe₃)₂}₃]
Compound name(s): 
tris(bis(trimethylsilyl)amido)-(trifluoromethanesulfonato)-uranium
Central atom: 
Uranium
Attached groups: 
OSO₂CF₃ (trifluoromethanesulfonato-κO)
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: 
U«V4C4OIVE16B7Z0X4L3»
[MLXZ]𝘲 class: 
[MX4L3]
MLXZ class (ENC, equivalent neutral class): 
MX4L3

[U(NPh₂)₄]

Formula Unicode styled: 
[U(NPh₂)₄]
Compound name(s): 
tetrakis(Diphenylamido) uranium
Central atom: 
Uranium
Attached groups: 
NPh₂ (diphenylamino: 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: 18
Summary of calculated classifications: 
U«V4C4OIVE18B8Z0X4L4»
[MLXZ]𝘲 class: 
[MX4L4]
MLXZ class (ENC, equivalent neutral class): 
MX4L4

[W(NMe₃)(PhC≡CPh)₃]

Formula Unicode styled: 
[W(NMe₃)(PhC≡CPh)₃]
Compound name(s): 
tris(η-Diphenylacetylene)-trimethylamine-tungsten
Central atom: 
Tungsten
Attached groups: 
NMe₃ (trimethylamine)
(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(NCMe)(PhC≡CPh)₃]

Formula Unicode styled: 
[W(NCMe)(PhC≡CPh)₃]
Compound name(s): 
tris(η-Diphenylacetylene)-acetonitrile-tungsten
Central atom: 
Tungsten
Attached groups: 
NCMe (acetonitrile)
(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(OBuᵗ)₃(≡CPh)]

Formula Unicode styled: 
[W(OBuᵗ)₃(≡CPh)]
Compound name(s): 
Tri-t-butoxy-benzylidyne-tungsten
Central atom: 
Tungsten
Attached groups: 
OBuᵗ (t-butyloxy)
≡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(NH₂Prⁱ)(PhC≡CPh)₃]

Formula Unicode styled: 
[W(NH₂Prⁱ)(PhC≡CPh)₃]
Compound name(s): 
tris(η-1,2-Diphenylethyne)-isopropylideneamido-tungsten
Central atom: 
Tungsten
Attached groups: 
NH₂Prⁱ (isopropylamine)
(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