*2.5. X-ray Di*ff*raction of Powders*

Powder X-ray di ffraction experiments were carried out using a Bruker D8 Advance di ffractometer (BRUKER AXS, Inc., Madison, WI, USA) equipped with a LYNXEYE position sensitive detector using CuK α radiation (λ = 0.15418 nm). The data were collected at room temperature in the Bragg–Brentano (θ/θ) geometry, between 3◦ and 60◦ (2θ) in a continuous scan using 0.03◦ steps, under standard laboratory conditions without prior preparation of the measured samples.
