Are you being metaphorical when you say literally? Or is this a reference to the conquest by Cyrus the Great?
I'm not trying to be pedantic here. I'm just not familiar with any historical event you are describing.
From what I've heard, and I'm not an expert, I wouldn't characterize any of the conquests of Babylon as a 'razing', And the eventual abandonment of the city was more a result of slow decline and changing geological conditions.
I do like to learn about the history of the area, so if it's just something I'm not familiar with, please point me in the right direction.