“…In contrast, Ni 3 Cl 2.82 (OH) 3.18 · 2H 2 O (Figure 1, green line) shows additional, sharp reflections (e.g., at 13.7, 16.1, and 19.9° 2 θ ). These additional reflections do not match the powder patterns of possible impurities [Ni 2 Cl(OH) 3 , NiCl 2 x (OH) 2–2 x (ss‐type OH),48 Ni 3 Cl 2.1 (OH) 3.9 · 4H 2 O,47 β‐Ni(OH) 2 ,40 NiCl 2 · x H 2 O ( x = 0, 2, 4, 6) [44–46,50] ] that could emerge during the synthesis of Ni 3 Cl 2.82 (OH) 3.18 · 2H 2 O. In addition, some reflections show clear, but unsystematic shifts (e.g., at 20.4, 21.4, and 25.5° 2 θ ).…”