Saha et al. (from Rahul Banerjee group at Indian National Chemical Laboratory) reported a rapid way of making copper xerogels (with a max surface area of 67 m2/g) starting from oxalic acid and copper perchlorate. I always taught oxalic acid would make good MOFs (hence my interest in this work) but I guess xerogels would be the best you can get. I'm sure the authors tried to get ordered structures first. Great work, nonetheless.