OPCl₃ (trichlorophosphane oxide)

trans–[W(Cl)₄(PhC≡CPh)(OPCl₃)]

Formula Unicode styled: 
trans–[W(Cl)₄(PhC≡CPh)(OPCl₃)]
Compound name(s): 
(η²-Diphenylacetylene)-tetrachloro-(trichlorophosphine oxide-O)-tungsten
Central atom: 
Tungsten
Attached groups: 
Cl (chloro)
PhC≡CPh (diphenylethyne)
OPCl₃ (trichlorophosphane oxide)
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: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 14
Summary of calculated classifications: 
W«V4C6OIVE14B6Z0X4L2»
[MLXZ]𝘲 class: 
[MX4L2]
MLXZ class (ENC, equivalent neutral class): 
MX4L2

[Nb(Cl)₅(OPCl₃)]

Formula Unicode styled: 
[Nb(Cl)₅(OPCl₃)]
Compound name(s): 
pentachloro-(Trichlorophosphaneoxide)
Central atom: 
Niobium
Attached groups: 
Cl (chloro)
OPCl₃ (trichlorophosphane oxide)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 12
Summary of calculated classifications: 
Nb«V5C6OVE12B6Z0X5L1»
[MLXZ]𝘲 class: 
[MX5L1]
MLXZ class (ENC, equivalent neutral class): 
MX5L1