[Ca(OH₂)₄(12-crown-4-κ⁴O)]²⊕

Formula Unicode styled: 
[Ca(OH₂)₄(12-crown-4-κ⁴O)]²⊕
Compound name(s): 
Tetra-aqua-(1,4,7,10-tetraoxacyclododecane)-calcium(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: 
8
[MLXZ]𝘲 class: 
[ML8]2+
MLXZ class (ENC, equivalent neutral class): 
MX2L6
Summary of calculated classifications: 
Ca«V2C8OIIE16B8Z0X0L8»2⊕
𝘥-electron configuration = 𝘮 – VN: 
𝘥-electron configuration = 𝘮 – ON: 
𝘥-electron configuration = 𝘮 – VN – 𝘲 from [MLXZ]𝘲: 
Attached atoms: 
O8
Phase: 
InChIKey (see www.inchi-trust.org): 
MMFBVFWEERQGJK-UHFFFAOYSA-N