From my experience with corn, that's way too close together to allow for good pollination.

If you go to one corn plant per square foot, you should be alright, assuming your soil is optimally fertile.

As to your sun exposure, it depends on how tall your corn plants are. Most tomato plants will get around six feet tall, some will get even higher. If your corn plants are not taller than that, then each crop will effectively get only half a day of sun.

If you have another bed, it might be better to move the tomatoes to the left side of that bed and then plant something shorter on the right side of both beds. Suggestions would be squash, cucumbers, bush beans, or herbs.

Thanks Donna. I do have another raised bed, however the next bed is only raised half a foot above the ground and the natural soil below is poor. Would that be enough for either the corn or the tomatoes?

Also, just for reference, what is your thinking for planting the taller things on the left side?

Thanks!