Instruments

Instrument Training

Students and staff of the Department of Chemistry that are interested in running samples during evenings and weekends can be trained on both instruments. Please send requests for training to xray-help@sas.upenn.edu. Prepare crystals suitable for diffraction using a compound that is both air and moisture stable to use during training (the sample can be of a known molecule) and print out a quick guide for the appropriate instrument.

Bruker Apex 2 Kappa Duo

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Diffractometer is equipped with a four-circle kappa-axis goniometer and APEX II CCD detector with an Oxford CryoSystems CryoStream 700 Crystal Cooling System allowing for a data collection temperature range of 80 – 400 K. The Duo has dual sources to collect data on routine, well-diffracting samples (using Mo Kα radiation) as well as small and weak samples (Cu Kα radiation). The Cu source also enables the determination of absolute structure when an atom heavier than oxygen is not present. Data processing is performed using Bruker’s APEX2 software package (for processing CCD data). Structure solution and refinement are performed using a variety of programs including the SHELXL package, Olex 2, Crystal Structure, X-Seed, and Platon.

Bruker D8 Quest

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Diffractometer is equipped with a fixed-chi goniometer and PHOTON 100 CMOS detector capable of shutter-less data collection with an Oxford CryoSystems CryoStream 800 Crystal Cooling System allowing for a data collection temperature range of 80 – 400 K. The D8 Quest uses Mo Kα radiation for data collection of well-diffracting samples. Data processing is performed using Bruker’s APEX3 software package. Structure solution and refinement are performed using a variety of programs including the SHELXL package, Olex 2, Crystal Structure, X-Seed, and Platon.

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