President's Showcase

Abstract

Two-dimensional (2D) molecular materials represent an emerging class of ultra-thin structures that offer novel properties in comparison to parent bulk materials. 2D materials are intrinsically compatible with modern electronic devices, which makes them suitable for future practical implementations. The majority of 2D materials are derived from extended inorganic solids. The difficult part of synthesizing these exfoliable molecular materials is their structure in keeping van der Waals interactions between layers and a strong coordination between Cr and Cl in the layers. To counteract this challenge, I focused on molecular perovskites types, including CrCl4(X)2. X=1-aminodecane, amylamine, and methylamine. These molecules crystalize in layer structure, separated by the amine. Chromium exhibits Jahn-Teller distortion that allow for an ideal overlap between molecular orbitals of the chlorine and chromium. This will increase the magnetic ordering temperature. These three complexes show relatively high Tc = 48. Those complexes show a narrow hysteresis that classify these materials as soft magnetics. I hypothesize that the van der Waal interactions stay consistently weak, allow for exfoliation into a thin film with the possibility to change properties, and grant application in molecular devices.

Presentation Materials