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<p><big>Polyhalogen cations</big></p>
<p>There are two general strategies for preparing polyhalogen cations:<br/>
* By reacting the appropriate <a href="page.php?w=interhalogen">interhalogen</a> with a <a href="page.php?w=Lewis_acid">Lewis acid</a> (such as the halides of <a href="page.php?w=Boron">B</a>, <a href="page.php?w=Aluminum">Al</a>, <a href="page.php?w=Phosphorus">P</a>, <a href="page.php?w=Arsenic">As</a>, <a href="page.php?w=Antimony">Sb</a>) either in an inert or oxidizing solvent (such as anhydrous <a href="page.php?w=hydrogen_fluoride">HF</a>)</p><p>
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