The 1:1 adduct of 4-aminobenzoic acid with 4-aminobenzonitrile

Acta Crystallogr C. 2000 Sep:56 ( Pt 9):1155-6. doi: 10.1107/s010827010000874x.

Abstract

The 1:1 adduct of 4-aminobenzoic acid (PABA) with 4-am-inobenzonitrile (PABN), C(7)H(7)NO(2).C(7)H(6)N(2), consists of a primary centrosymmetric cyclic hydrogen-bonded PABA dimer interaction [O.O 2.640 (3) A] peripherally linked into chains by weaker hydrogen bonds via a head-to-tail PABN interaction [N.N 3.179 (4) and N.O 3.062 (4) A], and is linked between the chains by amine-N (PABN) to amine-N (PABA) interactions [N.N 3.233 (5) A]. No proton transfer occurs.

MeSH terms

  • 4-Aminobenzoic Acid / chemistry*
  • Crystallography, X-Ray
  • Models, Molecular
  • Molecular Conformation
  • Nitriles / chemistry*

Substances

  • Nitriles
  • 4-aminobenzonitrile
  • 4-Aminobenzoic Acid