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Twin and multi-crystal experiments

AppNote SMX004: Using CrysAlis(Pro) to elucidate twinned crystals by X-ray diffraction

Background

Twinned or multi-crystals are often seen as challenging to work with. The prevalence of twins with both strongly and weakly diffracting domains makes it essential to have detectors, such as HPADs or S2 CCDs, which have high sensitivity, ultra low-noise and high dynamic range in order to best measure intensities from both domains simultaneously. Rigaku Oxford Diffraction’s hardware coupled with CrysAlisPro software makes handling twins easier and produces better results than ever thanks to an improved data reduction algorithm. Best crystallographic practice dictates that all measurable diffraction peaks from a sample should be collected and included in refinement for the most accurate and meticulous structure determination.