5-coordinate: square based pyramidal (p-block element, 1 lone pair)

[Cl(F)₄]⊕

Formula Unicode styled: 
[Cl(F)₄]⊕
Compound name(s): 
Tetrafluorochlorine(1+)
Central atom: 
Chlorine
Attached groups: 
F (fluoro)
Charge on central atom: 
1
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: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Cl«V5C4OVE10B4Z0L0X4»⊕
[MLXZ]𝘲 class: 
[MX4]+
MLXZ class (ENC, equivalent neutral class): 
MX3Z1