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Examining a five-dimensional incommensurate composite crystal structure by X-ray diffraction

AppNote SMX006: Examining a five-dimensional incommensurate composite crystal structure by X-ray diffraction

Background

Modulated structures are a real test of a single crystal diffractometer. The presence of strong/intense Bragg reflections alongside weaker satellite peaks mean that, for successful characterization, it is compulsory to have the following:

  • A sensitive low noise detector with high dynamic range such as a Rigaku Oxford Diffraction CCD or HPAD to get accurate intensity measurements on even the weakest satellite peaks.
  • A powerful indexing and data reduction software package like CrysAlisPro to easily index the cell and multidimensional, multi-order satellite peaks as well as provide good results from data processing for solution and refinement in programs such as Jana2006.

Rigaku Oxford Diffraction’s sealed tube systems are an excellent match for conducting research on these materials

Small molecule crystallography products from Rigaku

A benchtop single crystal X-ray diffractometer ideal for self-service crystallography and teaching.

Our most popular diffractometer for chemical crystallography, configured with either single or dual microfocus sealed tube X-ray sources and an extremely low noise direct X-ray detection detector.

An extremely high-flux rotating anode X-ray diffractometer specifically configured for measuring difficult samples.

A dual-wavelength, extremely high-flux, rotating anode X-ray diffractometer specifically configured for measuring difficult samples as well as providing versatility through multiple wavelengths.

A modern single crystal X-ray diffractometer for structural analysis of small molecule samples configured with microfocus sealed tube technology and a direct X-ray detection detector.

A bespoke, extremely high-flux diffractometer with custom enclosure and the flexibility to utilize both ports of the rotating anode X-ray source.

User-inspired data collection and data processing software for small molecule and protein crystallography

A unique curved single crystal X-ray diffraction detector based on direct X-ray detection technology with the highest 2θ range at a single position available for the home lab.

Extremely low noise, air-cooled X-ray detector based on direct X-ray detection technology.

Extremely low noise, compact, air-cooled X-ray detector based on direct X-ray detection technology.

High-resolution X-ray detectors for X-ray diffractometers from DECTRIS

Automated crystal transport, orientation and retrieval robot