[Mo(Se)(Se₄)₂]²⊖

Formula Unicode styled: 
[Mo(Se)(Se₄)₂]²⊖
Compound name(s): 
bis(tetraseleno-Se,Se')-selenido-molybdenum(2-)
Central atom: 
Molybdenum
Charge on formula unit (QN): 
2–
Attached groups: 
Se (seleno; ⭀Se)
Se₄ (tetraseleno-κ²Se)
Compound type: 
Molecular
DOI link to literature report: 
10.1021/ja00214a055
Crystal data CSD link: 
gepfem
Crystal data ICSD link: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Coordination Number (CN, sum of attached group denticities): 
CN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Bond number (BN) = 𝘹 + 𝘭 + 𝘻: 
7
[MLXZ]𝘲 class: 
[MX6L1]2-
MLXZ class (ENC, equivalent neutral class): 
MX4L3
Summary of calculated classifications: 
Mo«V4C5OIVE16B7Z0X6L1»2⊖
Geometry: 
5-coordinate: square-based pyramid (SPY-5)
𝘥-electron configuration = 𝘮 – VN: 
d2
𝘥-electron configuration = 𝘮 – ON: 
d2
𝘥-electron configuration = 𝘮 – VN – 𝘲 from [MLXZ]𝘲: 
d2
Attached atoms: 
Se5
Phase: 
Solid
InChIKey (see www.inchi-trust.org): 
SRKWRKSIGNSTEF-UHFFFAOYSA-J