Obtainment of precise experimental data on diffractometers with 2D and point detectors

A measurement method based on the use of diffractometers with a point detector is proposed that makes it possible to reduce the measurement time by a factor of about 2 in comparison with the conventional experiment. Measures are proposed that allow one to increase the measurement precision for diffractometers with a 2D CCD detector. Refinement of the model of independent atoms from the experimental data obtained by these methods is characterized by consistency between the experimental and calculated structure factors at a level of 1-1.5%. A further significant decrease in refinement Rfactors in going to the multipole model indicates that the data precision is sufficient for studying the charge density in crystals.