Crystal structure of the salt bis­­(tri­ethano­lamine-κ3N,O,O′)cobalt(II) bis­­[2-(2-oxo-2,3-di­hydro-1,3-benzo­thia­zol-3-yl)acetate]

The reaction of 2-(2-oxo-2,3-di­hydro-1,3-benzo­thia­zol-3-yl)acetic acid (NBTA) and tri­ethano­lamine (TEA) with Co(NO3)2 results in the formation of the title complex, [Co(C6H15NO3)2](C9H6NO3S)2, which is formed as a result of the association of bis­(tri­ethano­lamine)­cobalt(II) and 2-(2-oxo-2,3-di­hydro-1,3-benzo­thia­zol-3-yl)acetate units. It crystallizes in the monoclinic centrosymmetric space group P21/c, with the CoII ion situated on an inversion centre. In the complex cation, the CoII ion is octa­hedrally coordinated by two N,O,O′-tridentate TEA mol­ecules with a facial distribution and the N atoms in a trans arrangement. Two ethanol groups of each TEA mol­ecule form two five-membered chelate rings around the CoII ion, while the third ethanol group does not coordinate to the metal. The free and coordinating hy­droxy groups of the TEA mol­ecules are involved in hydrogen bonding with the O atoms of NBTA anions, forming an infinite two-dimensional network extending parallel to the bc plane.