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. 2017 May 9;4:170057. doi: 10.1038/sdata.2017.57

Table 1. Summary of the data subclasses in the hybrid organic-inorganic perovskites dataset.

Organic cation A Cation B and anion X
 Total                
Ge
 Sn
 Pb
F Cl Br I F Cl Br I F Cl Br I
Ammonium 2 2 4 3 3 4 3 4 2 2 3 3 35
Methylammonium 6 5 6 6 6 6 6 6 6 5 5 6 69
Dimethylammonium 5 7 9 8 9 8 7 8 5 7 7 7 87
Trimethylammonium 7 8 9 9 7 10 11 11 9 11 9 12 113
Tetramethylammonium 2 3 3 2 1 3 3 2 1 3 3 3 29
Ethylammonium 9 10 11 12 11 11 12 12 12 10 10 11 131
Propylammonium 8 11 13 12 10 13 13 12 11 10 11 13 137
Isopropylammonium 9 8 9 10 9 9 11 9 12 11 8 10 115
Butylammonium 4 3 3 4 4 3 3 3 2 4 4 4 41
Hydroxylammonium 7 7 7 7 5 6 7 7 7 6 7 7 80
Formamidinium 2 3 3 3 2 3 3 3 2 3 3 3 33
Acetamidinium 6 5 6 6 6 6 7 6 5 6 6 6 71
Hydrazinium 8 10 11 11 8 11 12 11 8 9 8 9 116
Guanidinium 3 3 3 3 2 2 3 3 2 3 3 3 33
Azetidinium 13 14 16 15 14 17 16 16 9 13 13 15 171
Imidazolium 6 6 8 8 9 8 7 9 6 7 5 6 85
Total 97 105 121 119 106 120 124 122 99 110 105 118 1,346