Research Symposium

BIO

Hello! My name is Mariana Avila, I am a second year student studying Behavioral Neuroscience with a minor in Chemistry. My family emigrated from Colombia and I am a first generation college student. During my time at FSU I have been involved in Healthy Noles, Alpha Chi Sigma, Strike Magazine and research in the Shatruk Lab. I would like to continue my research experience in this lab and develop independent projects. I hope to pursue an MD-PhD after my undergraduate studies.

Fe(II) Spin Crossover Complexes with Novel Ligand Types

Abstract

Transition metal complexes that exhibit spin crossover (SCO) are promising materials for application in next-generation stimuli-responsive. SCO manifests itself as switching between the high-spin (HS) and low-spin (LS) electronic configurations triggered by changes in temperature, pressure, or light radiation. Previous research from our labs has explored the SCO behavior of an FeII complex with naphthalene-functionalized 2,2'-biimidazole (xnap-bim). [Fe(tpma)(xnap-bim)](ClO4)2 showed an abrupt and hysteric thermally driven spin transition, as well as light-induced excited spin state trapping (LIESST) at lower temperatures. In the present work, we extend these studies to a new ligand, anthra-bim, obtained by N-alkylation of 2,2'-biimidazole with 2,3-dimethylanthracene. We examine how the change in the ligand structure impacts the crystal packing of the new Fe(II) complex, [Fe(tpma)(anthra-bim)](BF4)2, and its structural, magnetic, and photophysical behavior.

Keywords: Spin Cross Over