MS36-P30 Enhancing experimental exploration space with greater dimensions in modern printing Jake Musselle-Sexton (School of Natural and Environmental Sciences - Newcastle University, Newcastle Upon Tyne, United Kingdom) Jake Musselle-Sexton (School of Natural and Environmental Sciences - Newcastle University, Newcastle Upon Tyne, United Kingdom) Michael Probert (School of Natural and Environmental Sciences - Newcastle University, Newcastle Upon Tyne, United Kingdom)email: j.musselle-sexton2@newcastle.ac.ukSpin crossover is a phenomenon in which a metal ion undergoes a spin transition due to external stimuli such as temperature, pressure, photo-irradiation or electric currents.1 [Fe(Phen)2(NCS)2] (Phen =1,10 phenanthroline) is one of the archetype spin crossover systems which has been analysed by various methods including X-ray Diffraction (XRD) with known experimental values for transitions.2 Being able to measure the changes in bond length to determine the spin state of the metal ion allows us to set a standard to work by. Light induced excited spin state trapping (LIESST) uses photo-irradiation to cause a spin transition at low temperatures,3 this effect is usually measured by Mossbauer spectroscopy showing the ratio of high spin and low spin atoms in a sample based on magnetic susceptibility. XRD allows us to see the changes in bond length which can be used to determine roughly the spin state, to do this with photo-irradiation means a system has to be designed to allow us to illuminate the sample in the hutch.

Adaptation of this system allows for new spin crossover systems to be found and synthesised, to improve on current research and current properties of these systems.

The applications of these systems including high density memory and display devices, these can only be achieved with spin crossover properties being at relatively easy to obtain conditions. These include being close to room temperature and standard pressure for practical applications to be possible. The presented material will include the development and production of a new light irradiation source that can be mounted within the enclosure of a 3-circle diffractometer and the results of this equipment being used during the collection of data for a novel spin crossover system
References:

1. P.Gütlich, Eur. J. Inorg. Chem., 2013, 581–591.



2. M. Lorenc, S. F. Matar, J. F. Letard, H. T. Lemke, E. Collet, Acc. Chem. Res. 2015, 48, 774–781



3. Decurtins, S., Gütlich, P., Köhler, C. P., Spiering, H. & Hauser, A. Chemical Physics Letters, 1984, 105, 1–4

Keywords: Spin Crossover, 3D printing,