Raxis 4 imaging plate detector

Small angle powder X-ray diffraction patterns of the pristine samples in powder form were recorded with the aid of “Lindemann” type glass capillaries (OD = 0.7 mm) on a Rigaku (Tokyo, Japan) R-AXIS IV Imaging Plate Detector combined with a RU-H3R Rotating Copper Anode X-ray Generator (λ = 0.154 nm). Wide angle pXRD measurements were carried out on a Bruker (Billerica, MA, USA) X-ray system (D8-Advance diffractometer equipped with a LynxEye type detector). Cu Kα radiation (λ = 0.154 nm), operated at 40 kV and 40 mA, was used. Data were collected over the 2θ range from 0° to 160° at a scanning speed of 0.35 s/step and a step size of 0.02°.

The X‐ray diffraction experiment on a PHCP crystal was carried out on a Rigaku Micromax‐007 rotating anode X‐ray generator with a Cu target equipped with an R‐AXIS IV⁺⁺ imaging plate detector (Rigaku, Japan). The crystal was flash‐cooled at −173°C in a stream of cold nitrogen, using following the cryoprotectant solution: 0.05M sodium citrate, 30% (w/v) PEG 4,000, and 0.1M Tris‐HCl (pH 8.1). A total of 270 images were collected for the PHCP crystal at a camera length of 150 mm and an oscillation angle of 1.0°. The PHCP crystal diffracted to a maximal resolution of 1.89 Å (Table 2). The diffraction data sets were processed using CrystalClear (Rigaku, Japan). The PHCP crystal belonged to the space group P2₁22₁ (a = 54.24 Å, b = 72.92 Å, c = 132.37 Å), and had four PHCP molecules in an asymmetric unit, with a Matthews coefficient of 2.15 ų/Da, which corresponds to a solvent content of 42.7%.34