Hey guys, I am doing some research on solvatochromism, and I want to know what molecular features of the dye can affect the extent of solvatochromism - I understand how solvents with different polarities can affect the HOMO LUMO gap, but what are the structural features which affects the size of the bathochromic shift or the hypsochromic shifts in different solvents? What other factors do we have to consider when looking at the dye, which can tell us about the extent of their solvatochromic properties?