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Gold(II) sulfate
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<p>Gold(II) sulfate is the <a href="/facts/Chemical_compound/37FXqqtv">chemical compound</a> with the formula AuSO4 or more correctly Au2(SO4)2. This compound was previously thought to be a mixed-<a href="/facts/Valence_(chemistry)/ck7cHByj">valent</a> compound as AuIAuIII(SO4)2. But later, it was shown that it contained the diatomic <a href="/facts/Cation/wrbwhF3z">cation</a>, Au4+2 which made it the first simple inorganic gold(II) compound. The bond distance between the gold atoms in the diatomic cation is 249 <a href="/facts/Picometer/Cb54mVBX">pm</a>. </p>