* Gold's Stability: Gold is a very unreactive metal, meaning it doesn't readily form compounds. It typically exists in a +1 or +3 oxidation state.

* Carbonate Ions: Carbonate ions (CO₃²⁻) are known for their tendency to react with acidic solutions. Gold in its +1 oxidation state is too stable and not acidic enough to react with carbonate ions.

Therefore, there is no known compound called gold (I) carbonate.