Bis{tris[2-(2-oxidobenzylideneazaniumyl)ethyl]amine-κ(3) O,O′,O′′}calcium bis(perchlorate) acetonitrile disolvate

The title complex, [Ca(C(27)H(30)N(4)O(3))(2)](ClO(4))(2)·2CH(3)CN, is composed of centrosymmetric (CaL(2))(2+) cations [L = tris­(2-hy­droxy­benzoyl­amino­eth­yl)amine = H(3)saltren], uncoordin­ated perchlorate anions and acetonitrile solvent mol­ecules. The calcium ion is six-coordinated and is bonded to all phen­oxy O atoms from both zwitterionic saltren mol­ecules. There are strong intra­molecular N—H⋯O hydrogen bonds. The cations are linked into chains via weak inter­molecular C—H⋯O hydrogen bonds and C—H⋯π and π–π stacking inter­actions [centroid–centroid distances = 3.306 (3) and 3.415 (3) Å].