Cyclic C–H⋯O motifs as general supramolecular synthon in aromatic sulfonester trimers

摘要: Abstract The synthesis, analytical characterisation and four X-ray structures of aromatic sulfonester trimers featuring a meta-substitution are reported. title compounds feature either resorcinol or 1,3-benzenedisulfonyl moiety as central unit; one the exists in two polymorphic forms. Depending on Caryl-SO2-O-Caryl torsion angles main conformations have been detected: U- W-shape. Only little influenced by molecular conformation prevailing non-covalent interaction packing all C–H⋯O contacts. Thereby, H atoms ortho position to oxysulfonyl groups serve hydrogen bonding donor S O units acceptors. In cases contain cyclic supramolecular synthons featurin R 2 ( 10 ) g graph- 12 set descriptor for benzenedisulfonic acid derivatives respectively. One is also present most published sulfontriester uninfluenced from substitution pattern.