My pleasure, and I have a great link that goes into the exact mechanism of how CFC photochemistry destroys the ozone layer.

https://scied.ucar.edu/ozone-layer

Here’s one with more technical analysis along with the exact chemistry:

http://www.theozonehole.com/ozonedestruction.htm

Here’s a broad overview with historical perspectives from the American Chemical Society: https://www.acs.org/content/acs/en/education/whatischemistry...

I hope this helps.