[Si(F)₅(OH₂)]⊖

Formula Unicode styled: 
[Si(F)₅(OH₂)]⊖
Compound name(s): 
aqua-pentafluoro-silicate
Central atom: 
Silicon
Charge on formula unit (QN): 
1–
Attached groups: 
F (fluoro)
OH₂ (aqua)
Compound type: 
Molecular
DOI link to literature report: 
10.5517/ccdc.csd.cc25ms9x
Crystal data CSD link: 
padjaj
Crystal data ICSD link: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 12
Bond number (BN) = 𝘹 + 𝘭 + 𝘻: 
6
[MLXZ]𝘲 class: 
[MX5L1]-
MLXZ class (ENC, equivalent neutral class): 
MX4L2
Summary of calculated classifications: 
Si«V4C6OIVE12B6Z0X5L1»⊖
Geometry: 
6-coordinate: octahedral (p-block element, 0 lone pairs)
𝘥-electron configuration = 𝘮 – VN: 
𝘥-electron configuration = 𝘮 – ON: 
𝘥-electron configuration = 𝘮 – VN – 𝘲 from [MLXZ]𝘲: 
Attached atoms: 
F5O1
Phase: 
Solid