O (μ₂–oxo X+X)

[U(NPh₂)₃(μ₂–O)]₂²⊖

Formula Unicode styled: 
[U(NPh₂)₃(μ₂–O)]₂²⊖
Compound name(s): 
bis-[(μ₂-oxo-tris(diphenylamido)-uranium(-1)]
Central atom: 
Charge on central atom: 
-1
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
U«V4C5OIVE18B8Z0X5L3»
[MLXZ]𝘲 class: 
[MX5L3]-
MLXZ class (ENC, equivalent neutral class): 
MX4L4

catena–2D-trans–[Ru(μ₂-Cl)₂(μ₂–O)]

Formula Unicode styled: 
catena–2D-trans–[Ru(μ₂-Cl)₂(μ₂–O)]
Compound name(s): 
catena-[dichloro-oxo-ruthenium]
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ru«V4C6OIVE16B6Z0X4L2»
[MLXZ]𝘲 class: 
[MX4L2]
MLXZ class (ENC, equivalent neutral class): 
MX4L2

[Tc(μ₂–O)(Dedtc)(N)]₂

Formula Unicode styled: 
[Tc(μ₂–O)(Dedtc)(N)]₂
Compound name(s): 
bis-[(μ₂-Oxo)-(N,N-diethyldithiocarbamato-S,S')-nitrido-technetium(Tc—Tc)]
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Tc«V7C6OVIE16B8Z0X7L1»
[MLXZ]𝘲 class: 
[MX7L1]
MLXZ class (ENC, equivalent neutral class): 
MX7L1

[Re(O)(μ₂–O)(Cp*)]₂

Formula Unicode styled: 
[Re(O)(μ₂–O)(Cp*)]₂
Compound name(s): 
bis-[(μ₂-oxo)-oxo-(η⁵-pentamethyl-cyclopentadienyl)-rhenium]
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Re«V5C6OVE18B8Z0X5L3»
[MLXZ]𝘲 class: 
[MX5L3]
MLXZ class (ENC, equivalent neutral class): 
MX5L3

cis–[Re(CH₂Buᵗ)₂(O)(μ₂–O)]₂

Formula Unicode styled: 
cis–[Re(CH₂Buᵗ)₂(O)(μ₂–O)]₂
Compound name(s): 
bis-[(bis(Neopentyl)-oxo-(μ₂-oxo)-rhenium(Re—Re)]
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Re«V7C6OVIE16B8Z0X7L1»
[MLXZ]𝘲 class: 
[MX7L1]
MLXZ class (ENC, equivalent neutral class): 
MX7L1

cis–[Os(NC₅H₄Buᵗ)₂(O)₂(μ₂–O)]₂

Formula Unicode styled: 
cis–[Os(NC₅H₄Buᵗ)₂(O)₂(μ₂–O)]₂
Compound name(s): 
bis-[(μ₂-Oxo)-bis(4-t-butylpyridine)-bisoxo-osmium]
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Os«V6C6OVIE18B8Z0X6L2»
[MLXZ]𝘲 class: 
[MX6L2]
MLXZ class (ENC, equivalent neutral class): 
MX6L2

catena–1D-[Hg(μ₂–O)]

Formula Unicode styled: 
catena–1D-[Hg(μ₂–O)]
Compound name(s): 
catena-[oxo-mercury]|Montroydite
Central atom: 
Attached groups: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Hg«V2C2OIIE4B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2

[Zr(μ₂–O)₂]

Formula Unicode styled: 
[Zr(μ₂–O)₂]
Compound name(s): 
dioxo-zirconium|zirconium dioxide|Baddeleyite
Central atom: 
Attached groups: 
Charge on central atom: 
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Zr«V4C7OIV»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

catena–2D-trans–[Ta(F)₂(μ₂-F)(μ₂–O)]₂

Formula Unicode styled: 
catena–2D-trans–[Ta(F)₂(μ₂-F)(μ₂–O)]₂
Compound name(s): 
catena-[trifluoro-oxo-tantalum]
tantalum oxide trifluoride
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ta«V5C6OVE12B6Z0X5L1»
[MLXZ]𝘲 class: 
[MX5L1]
MLXZ class (ENC, equivalent neutral class): 
MX5L1

[Mo(μ₂–O)(O)(Cp)]₂

Formula Unicode styled: 
[Mo(μ₂–O)(O)(Cp)]₂
Compound name(s): 
bis-[(μ₂-Oxo)-oxo-(η⁵-cyclopentadienyl)-molybdenum(Mo—Mo)]
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Mo«V6C7OVE18B9Z0X6L3»
[MLXZ]𝘲 class: 
[MX6L3]
MLXZ class (ENC, equivalent neutral class): 
MX6L3

mer,cis–[V(F)(O)(μ₂–O)(Bpy)]₂

Formula Unicode styled: 
mer,cis–[V(F)(O)(μ₂–O)(Bpy)]₂
Compound name(s): 
bis-[(μ₂-Oxo)-(bipyridyl-N,N')-fluoro-oxo-vanadium]
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
V«V5C6OVE14B7Z0X5L2»
[MLXZ]𝘲 class: 
[MX5L2]
MLXZ class (ENC, equivalent neutral class): 
MX5L2

[Ti(μ₂–O)(Acac)₂]₂

Formula Unicode styled: 
[Ti(μ₂–O)(Acac)₂]₂
Compound name(s): 
bis-[(μ₂-Oxo)-bis(acetylacetonato-O,O')-titanium]
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ti«V4C6OIVE12B6Z0X4L2»
[MLXZ]𝘲 class: 
[MX4L2]
MLXZ class (ENC, equivalent neutral class): 
MX4L2

catena–1D-cis–[Mo(F)(μ₂-F)(μ₂–O)(O)]

Formula Unicode styled: 
catena–1D-cis–[Mo(F)(μ₂-F)(μ₂–O)(O)]
Compound name(s): 
catena-[difluoro-dioxo-molybdenum]
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Mo«V6C6OVIE16B8Z0X6L2»
[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: 
Charge on central atom: 
-1
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
V«V5C4OVE12B6Z0L0X6»
[MLXZ]𝘲 class: 
[MX6]-
MLXZ class (ENC, equivalent neutral class): 
MX5L1

catena–2D-[Ta(μ₂-I)₂(μ₂–O)]

Formula Unicode styled: 
catena–2D-[Ta(μ₂-I)₂(μ₂–O)]
Compound name(s): 
catena-[diiodo-oxo-tantalum]
tantalum oxide diiodide
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ta«V4C6OIVE13B6Z0X4L2»
[MLXZ]𝘲 class: 
[MX4L2]
MLXZ class (ENC, equivalent neutral class): 
MX4L2

catena–3D-[Ta(μ₂-F)(μ₂–O)₂]

Formula Unicode styled: 
catena–3D-[Ta(μ₂-F)(μ₂–O)₂]
Compound name(s): 
catena-[fluoro-dioxo-tantalum]
tantalum dioxide fluoride
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Ta«V5C6OVE12B6Z0X5L1»
[MLXZ]𝘲 class: 
[MX5L1]
MLXZ class (ENC, equivalent neutral class): 
MX5L1

catena–1D-[Nb(I)₂(μ₂-I)(μ₂–O)]

Formula Unicode styled: 
catena–1D-[Nb(I)₂(μ₂-I)(μ₂–O)]
Compound name(s): 
catena-[Triiodo-oxo-niobium]|Niobium oxide triiodide
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Nb«V5C6OVE12B6Z0X5L1»
[MLXZ]𝘲 class: 
[MX5L1]
MLXZ class (ENC, equivalent neutral class): 
MX5L1

catena–2D-[Nb(μ₂-I)₂(μ₂–O)]

Formula Unicode styled: 
catena–2D-[Nb(μ₂-I)₂(μ₂–O)]
Compound name(s): 
catena-[diodo-oxo-niobium(Nb—Nb)]
niobium oxide diiodide
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Nb«V5C7OIVE14B7Z0X5L2»
[MLXZ]𝘲 class: 
[MX5L2]
MLXZ class (ENC, equivalent neutral class): 
MX5L2

catena–1D-[Nb(μ₂-I)(μ₂–O)(μ₃–O)]

Formula Unicode styled: 
catena–1D-[Nb(μ₂-I)(μ₂–O)(μ₃–O)]
Compound name(s): 
catena-[Iodo-dioxo-niobium]
niobium dioxide iodide
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Nb«V5C7OVE14B7Z0X5L2»
[MLXZ]𝘲 class: 
[MX5L2]
MLXZ class (ENC, equivalent neutral class): 
MX5L2

catena–1D-[Nb(Cl)₂(μ₂-Cl)(μ₂–O)]

Formula Unicode styled: 
catena–1D-[Nb(Cl)₂(μ₂-Cl)(μ₂–O)]
Compound name(s): 
catena-[trichloro-oxo-niobium]|vanadium trichloride oxide
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Nb«V5C6OVE12B6Z0X5L1»
[MLXZ]𝘲 class: 
[MX5L1]
MLXZ class (ENC, equivalent neutral class): 
MX5L1