trans–[Np{(O)₂}(Cl)₄]²⊖

Formula Unicode styled: 
trans–[Np{(O)₂}(Cl)₄]²⊖
Compound name(s): 
tetrachloro-dioxo-neptunium(2-)
Central atom: 
Charge on formula unit (QN): 
2–
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Coordination Number (CN, sum of attached group denticities): 
Oxidation Number (ON) (Roman numerals): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Bond number (BN) = 𝘹 + 𝘭 + 𝘻: 
10
[MLXZ]𝘲 class: 
[MX8L2]2-
MLXZ class (ENC, equivalent neutral class): 
MX6L4
Summary of calculated classifications: 
Np«V6C6OVIE21B10Z0X8L2»2⊖
Isomer label: 
𝘥-electron configuration = 𝘮 – VN: 
𝘥-electron configuration = 𝘮 – ON: 
𝘥-electron configuration = 𝘮 – VN – 𝘲 from [MLXZ]𝘲: 
Attached atoms: 
Cl4O2
Phase: 
InChIKey (see www.inchi-trust.org): 
SYCCERVQJHDVTQ-UHFFFAOYSA-J