Some articles on acof:

Actinium - Chemical Compounds - Halides
... actinium trifluoride with ammonium hydroxide at 900–1000 °C yields oxyfluoride AcOF ... for an hour, similar treatment of actinium trifluoride yields no AcOF and only results in melting of the initial product ... AcF3 + 2 NH3 + H2O → AcOF + 2 NH4F Actinium trichloride is obtained by reacting actinium hydroxide or oxalate with carbon tetrachloride vapors at temperatures above 960 °C ...