O (oxo ⭀O X₂L)

trans,trans,trans–[Re(Cl)₂(CO)₂(PEt₃)₂]

Formula Unicode styled: 
trans,trans,trans–[Re(Cl)₂(CO)₂(PEt₃)₂]
Compound name(s): 
Dicarbonyl-dichloro-bis(triethylphosphine-P)-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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans,trans,trans–[Os(SC₆F₅)₂(CO)₂(PEt₂Ph)₂]

Formula Unicode styled: 
trans,trans,trans–[Os(SC₆F₅)₂(CO)₂(PEt₂Ph)₂]
Compound name(s): 
Dicarbonyl-bis(diethylphenylphosphine)-bis(pentafluorothiophenolato-S)-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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans,trans,trans–[Os(Br)₂(CO)(NCMe)(PPh₃)₂]

Formula Unicode styled: 
trans,trans,trans–[Os(Br)₂(CO)(NCMe)(PPh₃)₂]
Compound name(s): 
(Acetonitrile-dibromo-carbonyl-bis(triphenylphosphine)-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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans,trans,trans–[Nb(I)(CO)₂(MeC≡CMe)(PEt₃)₂]

Formula Unicode styled: 
trans,trans,trans–[Nb(I)(CO)₂(MeC≡CMe)(PEt₃)₂]
Compound name(s): 
(η²-But-2-yne)-dicarbonyl-iodo-bis(triethylphosphine)-niobium
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans,trans,trans–[Nb(I)(CO)₂(EtC≡CMe)(PEt₃)₂]

Formula Unicode styled: 
trans,trans,trans–[Nb(I)(CO)₂(EtC≡CMe)(PEt₃)₂]
Compound name(s): 
Dicarbonyl-iodo-(η²-pent-2-yne)-bis(triethylphosphine)-niobium
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans,trans,trans–[Ir(H)(SnPh₃)₂(CO)₂(PPh₃)]

Formula Unicode styled: 
trans,trans,trans–[Ir(H)(SnPh₃)₂(CO)₂(PPh₃)]
Compound name(s): 
Dicarbonyl-hydrido-triphenylphosphine-di(triphenyltin)-iridium
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans,trans,trans–[Ir(Cl)₂(H)(CO)(PPrⁱ₃)₂]

Formula Unicode styled: 
trans,trans,trans–[Ir(Cl)₂(H)(CO)(PPrⁱ₃)₂]
Compound name(s): 
Carbonyl-dichloro-hydrido-bis(tri-isopropylphosphine)-iridium
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans,trans,trans–[Ir(Cl)₂(H)(CO)(PPh₃)₂]

Formula Unicode styled: 
trans,trans,trans–[Ir(Cl)₂(H)(CO)(PPh₃)₂]
Compound name(s): 
Carbonyl-dichloro-hydrido-bis(triphenylphosphine)-iridium
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans,trans,trans–[Ir(C≡CPh)₂(H)(CO)(PPh₃)₂]

Formula Unicode styled: 
trans,trans,trans–[Ir(C≡CPh)₂(H)(CO)(PPh₃)₂]
Compound name(s): 
Carbonyl-hydrido-bis(2-phenylethynyl)-bis(triphenylphosphine)-iridium
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans,trans,trans–[Fe(I)(Me)(CO)₂(PMe₃)₂]

Formula Unicode styled: 
trans,trans,trans–[Fe(I)(Me)(CO)₂(PMe₃)₂]
Compound name(s): 
Dicarbonyl-iodo-methyl-trans-bis(trimethylphosphine)-iron
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans,trans,trans–[Fe(H)(I)(CO)₂(PPh₃)₂]

Formula Unicode styled: 
trans,trans,trans–[Fe(H)(I)(CO)₂(PPh₃)₂]
Compound name(s): 
Dicarbonyl-hydrido-iodo-bis(triphenylphosphine)-iron
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans,trans,trans–[Cr(H)(CO)₂(NO)(PPh₃)₂]

Formula Unicode styled: 
trans,trans,trans–[Cr(H)(CO)₂(NO)(PPh₃)₂]
Compound name(s): 
Hydrido-dicarbonyl-nitroso-bis(triphenylphosphine)-chromium
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[W(I)(CO)₄(≡CMe)]

Formula Unicode styled: 
trans–[W(I)(CO)₄(≡CMe)]
Compound name(s): 
Tetracarbonyl-iodo-(methylcarbyne)-tungsten
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[W(CO)₄(C₈H₁₄)₂]

Formula Unicode styled: 
trans–[W(CO)₄(C₈H₁₄)₂]
Compound name(s): 
Tetracarbonyl-bis(etapedgag-trans-cyclo-octene)-tungsten
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[W(CO)(=C=CMePh){P(OMe)₃}₂(Cp)]⊕

Formula Unicode styled: 
trans–[W(CO)(=C=CMePh){P(OMe)₃}₂(Cp)]⊕
Compound name(s): 
Carbonyl-(η⁵-cyclopentadienyl)-(methyl(phenyl)vinylidene)-bis(trimethylphosphito)-tungsten(1+)
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[W(CN)₅(CO)₂]²⊖

Formula Unicode styled: 
trans–[W(CN)₅(CO)₂]²⊖
Compound name(s): 
dicarbonyl-pentacyano-tungsten(2-)
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[W(CH=CH₂)(CO)₂(PPh₃)(Cp)]

Formula Unicode styled: 
trans–[W(CH=CH₂)(CO)₂(PPh₃)(Cp)]
Compound name(s): 
Dicarbonyl-(η⁵-cyclopentadienyl)-triphenylphosphine-vinyl-tungsten
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[W(C₂H₄)₂(CO)₄]

Formula Unicode styled: 
trans–[W(C₂H₄)₂(CO)₄]
Compound name(s): 
Tetracarbonyl-bis(η²-ethene)-tungsten
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[W(Br)(CO)₄(≡CMe)]

Formula Unicode styled: 
trans–[W(Br)(CO)₄(≡CMe)]
Compound name(s): 
Tetracarbonyl-bromo-(methylcarbyne)-tungsten
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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[V(I)(CO)₂(MeC≡CMe)(PMe₂Ph)₂]

Formula Unicode styled: 
trans–[V(I)(CO)₂(MeC≡CMe)(PMe₂Ph)₂]
Compound name(s): 
(etawekkec-But-2-yne)-trans-bis(dimethylphenylphosphine)-dicarbonyl-iodo-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: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4