Composite Materials Based on Iron (II) Complex with Spin Transition

The design of new multifunctional composite materials is an important requirement for solving problems in the field of soft robotics. Previously used materials had significant drawbacks that limited their use - these systems had to have such opposite characteristics as accuracy and adaptability. The use of coordination compounds of 3d-series transition metals, which are capable of reversibly switching between spin states, as one of the components of the composite material helps to overcome the described limitations due to bistability and the ability to control the state of the system. Recent studies demonstrate the success of introducing spin transition compounds into polymer matrices, but the literature does not describe how the nature of the polymer matrix affects the spin transition parameters. This thesis is devoted to the development of new composite materials based on an iron (II) complex with a spin transition and polymer matrices with different characteristics of the polymer chain, as well as the search for correlations between the nature of the matrix and the parameters of the spin transition. Studying the spin transition parameters using UV/Vis spectroscopy made it possible to determine the dependence of the spin transition temperature on the flexibility of the polymer chain.