Extending the hydrogen-bonding array in ortho-phenylenediamine based bis-ureas

Philip Alan Gale (1) , Simon Brooks (2) , Mark Light (2)

1 School of Chemistry [Southampton, UK]
2 University of Southampton

Two new ortho-phenylenediamine based bis-urea compounds have been synthesised with pendant amide groups. The stability constants of the new compounds with a variety of anionic guests have been measured by 1H NMR titration techniques and compared to the parent bis-urea. The X-ray crystal structure of the acetate and benzoate complexes of a bis-amide functionalised system have been solved and reveal the receptor forming a dimer with two anions bound at the termini of the hydrogen bonded assembly.

Mots clés: Physical Sciences

Philip Alan Gale, Simon Brooks, Mark Light. Extending the hydrogen-bonding array in ortho-phenylenediamine based bis-ureas. Supramolecular Chemistry, 2007, 19 (01-02), pp.9-15. ⟨10.1080/10610270600879076⟩. ⟨hal-00513484⟩