10.1021/acs.orglett.5b02680.s001 Teresa A. Palazzo Teresa A. Palazzo Digambara Patra Digambara Patra Joung S. Yang Joung S. Yang Elsy El Khoury Elsy El Khoury Mackenzie G. Appleton Mackenzie G. Appleton Makhluf J. Haddadin Makhluf J. Haddadin Dean J. Tantillo Dean J. Tantillo Mark J. Kurth Mark J. Kurth Dibenzonaphthyridinones: Heterocycle-to-Heterocycle Synthetic Strategies and Photophysical Studies American Chemical Society 2015 dibenzo Strategy theory calculations StudiesA density strategy methodology solvatochromic excitation photophysical experiments λ max formation center DBN preparation Photophysical correlation Dibenzonaphthyridinone 2015-12-04 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Dibenzonaphthyridinones_Heterocycle_to_Heterocycle_Synthetic_Strategies_and_Photophysical_Studies/2102947 A heterocycle-to-heterocycle strategy is presented for the preparation of highly fluorescent and solvatochromic dibenzo­naph­thyridinones (DBNs) via methodology that leads to the formation of a tertiary, spiro-fused carbon center. A linear correlation between the results of photophysical experiments and time dependent density functional theory calculations was observed for the λ<sub>max</sub> of excitation for DBNs with varying electronic character.