O (μ₂–oxo X₂L₂)

[Al₂{CH(SiMe₃)₂}₄(μ₂–O)]

Formula Unicode styled: 
[Al₂{CH(SiMe₃)₂}₄(μ₂–O)]
Compound name(s): 
tetrakis{bis(trimethylsilyl)methyl}-di-aluminoxane
Central atom: 
Aluminium
Attached groups: 
CH(SiMe₃)₂ (bistrimethylsilylmethyl)
O (μ₂–oxo X₂L₂)
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: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Al«V3C3OIIIE8B4Z0X3L1»
[MLXZ]𝘲 class: 
[MX3L1]
MLXZ class (ENC, equivalent neutral class): 
MX3L1

trans–[Re₂(O)₂(μ₂–O)(Tpp)₂]

Formula Unicode styled: 
trans–[Re₂(O)₂(μ₂–O)(Tpp)₂]
Compound name(s): 
(μ-oxo)-dioxo-bis[5,10,15,20-tetraphenylporphyrinato]-di-rhenium
Central atom: 
Rhenium
Attached groups: 
O (oxo X₂)
O (μ₂–oxo X₂L₂)
Tpp (tetraphenylporphyrin)
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: 18
Summary of calculated classifications: 
Re«V5C6OVE18B8Z0X5L3»
[MLXZ]𝘲 class: 
[MX5L3]
MLXZ class (ENC, equivalent neutral class): 
MX5L3