Formation of a macrocycle from di­chloro­dimethyl­silane and a pyridoxalimine Schiff base ligand

The reaction of di­chloro­dimethyl­silane with a polydentate Schiff base ligand derived from pyridoxal and 2-ethano­lamine yielded the macrocyclic silicon compound (8E,22E)-4,4,12,18,18,26-hexa­methyl-3,5,17,19-tetra­oxa-8,13,22,27-tetra­aza-4,18-disilatri­cyclo­[22.4.0.0(10,15)]octa­cosa-1(24),8,10,12,14,22,25,27-octa­ene-11,25-diol, C(24)H(36)N(4)O(6)Si(2). The asymmetric unit contains the half macrocycle with an intra­molecular O—H⋯N hydrogen bond between the imine nitro­gen atom and a neighbouring oxygen atom. The crystal structure is dominated by C—H⋯O and C—H⋯π inter­actions, which form a high ordered mol­ecular network.