Question: what is the name for the ch3coo- ion
[{'answer': 'polyatomic anion', 'provenance': [{'wikipedia_id': '194637', 'title': 'Acetate', 'start_paragraph_id': 1, 'start_character': 618, 'end_paragraph_id': 1, 'end_character': 634, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'hydrogen acetate ( called acetic acid )'}, {'provenance': [{'wikipedia_id': '194637', 'title': 'Acetate', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 639, 'bleu_score': 0.8406826264157111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1807485485703130106}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '194637', 'title': 'Acetate', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['An acetate is a salt formed by the combination of acetic acid with an alkaline, earthy, metallic or nonmetallic and other base. "Acetate" also describes the conjugate base or ion (specifically, the negatively charged ion called an anion) typically found in aqueous solution and written with the chemical formula . The neutral molecules formed by the combination of the acetate ion and a "positive" ion (called a cation) are also commonly called "acetates" (hence, "acetate of lead", "acetate of aluminum", etc.). The simplest of these is hydrogen acetate (called acetic acid) with corresponding salts, esters, and the polyatomic anion , o', 'An acetate is a salt formed by the combination of acetic acid with an alkaline, earthy, metallic or nonmetallic and other base. "Acetate" also describes the conjugate base or ion (specifically, the negatively charged ion called an anion) typically found in aqueous solution and written with the chemical formula . The neutral molecules formed by the combination of the acetate ion and a "positive" ion (called a cation) are also commonly called "acetates" (hence, "acetate of lead", "acetate of aluminum", etc.). The simplest of these is hydrogen acetate (called acetic acid) with corresponding salts, esters, and the polyatomic anion , or .', 'The simplest of these is hydrogen acetate (called acetic acid) with corresponding salts, esters, and the polyatomic anion ,']}}]}, {'provenance': [{'wikipedia_id': '1885865', 'title': 'Rhodium(III) chloride', 'section': 'Section::::Coordination complexes.:Alkenes and carbon monoxide.\n', 'start_paragraph_id': 19, 'end_paragraph_id': 19, 'meta': {'evidence_span': ['RhCl(HO) react in ethanol to give cyclooctadiene rhodium chloride dimer. RhCl(HO) in methanol reacts with carbon monoxide (1 bar) to produce H[RhCl(CO)], which contains the dicarbonyldichloridorhodate(I) anion; further carbonylation in the presence of sodium citrate leads to the formation of tetrarhodium dodecacarbonyl, Rh(CO), a', 'RhCl(HO) react in ethanol to give cyclooctadiene rhodium chloride dimer. RhCl(HO) in methanol reacts with carbon monoxide (1 bar) to produce H[RhCl(CO)], which contains the dicarbonyldichloridorhodate(I) anion; further carbonylation in the presence of sodium citrate leads to the formation of tetrarhodium dodecacarbonyl, Rh(CO), a rhodium(0) cluster compound. Treatment of solid RhCl(HO) with flowing CO gives the dimeric rhodium(I) compoundrhodium carbonyl chloride, [(CO)Rh(μ-Cl)]. Numerous Rh-CO-PR (R = organic group)\rhighlight sentence(s) containing evidence, not only the answer']}}]}]