NOT AVAILABLE

STATION 16.2smx
High Flux Single Crystal Diffraction

Description

This station is a high flux, fixed wavelength, monochromatic, single crystal diffraction station for structure determination in chemistry and materials science.

It is currently used as an overflow station for Station 9.8 and applications for beam time should be made to 9.8 and not to 16.2 SMX directly.

It utilises a Bruker-Nonius APEXII CCD area detector and diffractometer at an X-ray wavelength of ca. 0.82Å. Variable temperature data collections ranging from 90 to 370K are available.

Functional Description

Station 16.2SMX is a high flux single crystal facility which utilises a Bruker-Nonius APEXII CCD area detector and D8 diffractometer at an X-ray wavelength of 0.846Å.

Technical Description

Diffractometer

The station operates a Bruker-Nonius APEXII CCD area detector and D8 diffractometer.

The APEXII has a choice of four standard collimators (0.8, 0.5, 0.3, 0.2 mm) plus two for microcrystal work (0.1, 0.05mm under test).

Ancillary Equipment

1. Oxford Cryosystems Cryostream 600 series - temperature range from 85 to 373K
2. Hot gas stream - temperature range from 373 to 600K
3. Crystal environmental cell for studying single crystal diffraction whilst exposing the crystal to vacuum or a gas environment

Development

The station is very much in its infancy and has only taken first beam in late July 2004. Unfortunately due to faulty air conditioning the environment was too hot for user work but initially testing was undertaken instead.

The station hosts along with its new APEXII diffractometer:

• A new Nikon SMZ-1500 microscope
• LCD Monitors
• Remote control of Oxford Cryostream (600 series)

Proposed Development

In the short term and perhaps most important is the installation of a new hutch air conditioning system which has been ordered and ready for next AP (AP43).

In the longer term it is intended that both station 9.8 and 16.2 SMX are linked via a database and data storage server. This would allow easy access to user data, the ability to store greater quantities of user data for longer periods (at the moment we are producing so much data that we generally exceed our machine limits within two weeks) and the ability to work on datasets whether the user collected them on 9.8 or 16.2 SMX.

Benchmark

Benchmarking is currently on going watch this space.......