Welcome to the community Joe. From the pics I've seen I would say without a doubt that the light is not the right type of light or nearly strong enough. IR is good for cell division of the plant, but it's not the food plants crave. That would explain the tall, lankyness of your plants. They are stretching and searching for food (ie grow lights or the sun). Also, generally, it's recommended that a MJ plant gets AT LEAST 150 watts.
Second, I would recommend a grow tent or building a grow area down there. I've grown in a basement like yours in the past and it was a nightmare! There can be LOTS of fungus and mold spores down there, not-to-mention you're leaving yourself very susceptible to unwanted insects as well. With such a large space you will save money and headaches by having a closed, secure and controllable grow environment.
I don't imagine that those plants a savable. I would scrape it and start over with a better set up - JMTC
Good luck and welcome : )