Synthesis and structural characterisation of the aggregates of benzo-1,2-chalcogenazole 2-oxides
作者:Peter C. Ho、Jamal Rafique、Jiwon Lee、Lucia M. Lee、Hilary A. Jenkins、James F. Britten、Antonio L. Braga、Ignacio Vargas-Baca
DOI:10.1039/c7dt00612h
日期:——
Iodine oxidation of bis[2-(hydroxyiminomethyl)phenyl] dichalcogenides yields benzo-1,2-chalcogenazole 2-oxides. Annulated derivatives of iso-tellurazole N-oxides spontaneously aggregate into cyclic tetra- and hexamers through Te⋯O chalcogen bonding; the structures of the co-crystals with benzene and CH2Cl2 illustrate the ability of these macrocycles to interact with small guest molecules. The selenium
双[2-(羟基亚氨基甲基)苯基]二卤化碘的碘氧化反应生成苯并1,2-硫属元素唑2-氧化物。通过TetellO硫属元素键合,环状的异-tellurazole N-氧化物衍生物自发聚集成环状四聚体和六聚体。与苯和CH 2 Cl 2共晶体的结构说明了这些大环与小客体分子相互作用的能力。硒同类物结晶形成超分子聚合物。VT NMR表明两种化合物都在溶液中聚集,但在硒的情况下仅在低温下聚集。这些分子参与超分子相互作用的不同能力是根据其通过DFT-D3计算得出的电子性质来解释的。