Chemistry Reference
In-Depth Information
Fig. 2 Experimental setup for in situ single crystal X-ray photodiffraction at Osaka University
Fig. 3 Setup for in situ powder X-ray photodiffraction at beamline BL15XU, SPring-8, Harima,
Japan (the custom diffractometer was built by M. Tanaka, Y. Katsuya, and the NIMS staff at
SPring-8)
case of the most common steady-state single crystal X-ray photodiffraction, in
order to accumulate sufficient photoinduced unstable, metastable, or stable product,
the crystal is exposed to the appropriate excitation light. The unstable species is
usually produced ex situ, and the sample is transferred to the diffractometer for data
collection, or it can be produced in situ by irradiation directly on the goniometer
(Figs.
1
and
2
). The product is trapped at low temperature to extend its lifetime and
