Clathrate and channel inclusion systems co-exist in the crystal structure of a bis-C-pivot macrocycle (Z′ = 2)†
Abstract
15,22-Bis(dimethoxyphosphoryl)-2,5,8-trioxa-16,21-diazatricyclo [21.4.0.09,14] heptacosa-9,11,13,23,25,27(1)-hexaene (1c) crystallises from P hydrogen bonds. The marked pseudosymmetry of the crystal structure (Z′ = 2) arises because of the twisting of the host columns about their axes to reduce the channel volumes to fit THF. The phosphorylation reaction of