19.2
[1]. Pau Díaz-Gallifa, et al. Synthesis, crystal structure, and magnetic characterization of the three-dimensional compound [Co2(cbut)(H2O)3]n (Hcbut = 1,2,3,-cyclobutanetetracarboxylic acid). Inorg Chem. 201 Jun 2;53(11):567-83.
P261-P26-P271-P280-P302+P352-P30+P30-P362+P36-P05-P501