Fig. 3
From: Text-mined dataset of inorganic materials synthesis recipes

Correspondence between choice of synthesis route and precursors counter-ions. The top table gives an example of the four synthesis types defined: one-step synthesis, solution-based, synthesis with intermediate heating steps, synthesis including grinding of precursors in liquid media. The pie-charts on the right displays the fraction of each synthesis route in the dataset. The donuts-like charts represent the fractions of the four synthesis routes (given in table) for each counter-ions used in precursors. “Ac” stands for acetate radical CH3COO− in the compound formula. “Org” stands for organic radical (–CH–) in the compound formula.