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Copper(II) tetrafluoroborate

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Title: Copper(II) tetrafluoroborate  
Author: World Heritage Encyclopedia
Language: English
Subject: Caesium hexafluorocuprate(IV), Potassium hexafluorocuprate(III), Copper(II) azide, Copper(II) phosphate, Copper hydride
Collection: Copper Compounds, Tetrafluoroborates
Publisher: World Heritage Encyclopedia

Copper(II) tetrafluoroborate

Copper(II) tetrafluoroborate[1]
CAS number
ChemSpider  YesY
Jmol-3D images Image 1
Molecular formula Cu(BF4)2
Molar mass 237.155 g/mol
Appearance solid
Solubility in water soluble in water
Related compounds
Other anions Copper(II) chloride
Copper(II) oxide
Copper(II) triflate
Other cations Sodium tetrafluoroborate
Lithium tetrafluoroborate
Silver tetrafluoroborate
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY   YesY/N?)

Copper(II) tetrafluoroborate is the copper salt of tetrafluoroboric acid which involves copper in its +2 oxidation state bonded to two tetrafluoroborate anions (BF4). Tetrafluoroborate adopts a tetrahedral shape, similar to that of methane. The central boron atom has a formal charge of −1, because of its four covalent bonds. Its oxidation state is +3.[2]


  1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–56,  
  2. ^ Copper(II) Tetrafluorborate,
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