Recently, biradicals have become a crucial topic attributing from their unique properties. Early studies show that magnetic properties found from these systems on the molecular level could be used extensively in the electronics, computer technologies, and renewable energy fields. More recently, the magnetic-effect of photocurrents gives great insight into using singlet-triplet excitations in manufacturing and developing organic solar cells, and while understanding their photophysical properties, it can also lead to the manufacturing of other new organic magnetic materials. Unlike other radicals, verdazyl radicals are stable at room temperature which gives ease with experimentation. They can also be linked to form bi- and tri-radicals which are also stable at room temperature. Being able to study these biradicals will accurately translate their structure-property relationships and establish their excitations. Specifically, we collect and analyze the data utilizing thermo-optical spectroscopy to evaluate the spin gap between the singlet ground state and triplet excited state of two biverdazyl biradicals. Switching between these states allows for a change in color in this model, and this can lead to an improved understanding of their interactions via change in temperature and possibly with the magnetic field.

Thermo-optical characterization of organic verdazyl biradicals

2019 Spring National Meeting

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.