I have a chemical spatial structure in a figure. The caption will be in cell 7 to cell 5. What would be the appropriate cell in which to start the structure?
I think I would look at it like any other type of diagram with a caption. A map would use the entire width of the page. A table or chart would begin at the margin. A pie graph would begin at the left margin. I would put the chemical structure at the left margin of the page following the caption.