The crystal structure of poly-(diaqua-bis(µ 3 -6-aminopyridine-3-carboxylato-κ 3 N,O,O ′)-(bis(µ 4 -2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylato-κ 5 N,O:O′:O′′:O′′′)-(µ 2 -oxalato-κ 4 O,O′:O′′,O′′′)dicobalt(II)dineodym(II), C 24 H 18 Co 2 N 8 Nd 2 O 18 | Synapse