The crystal and molecular structure of two benzimidazole derivatives: 1-(phenylmethyl)-2-(4-methoxyphenylmethyl)-1H-benzimidazole-5-carboxylic acid (I) and 1,2-di-(phenylmethyl)-1H-benzimidazole-5-carboxylic acid (II)


Ozbey S. , IDE S. , KENDI E.

JOURNAL OF MOLECULAR STRUCTURE, vol.442, pp.23-30, 1998 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 442
  • Publication Date: 1998
  • Doi Number: 10.1016/s0022-2860(97)00087-2
  • Title of Journal : JOURNAL OF MOLECULAR STRUCTURE
  • Page Numbers: pp.23-30

Abstract

The crystal structures of C23H20N2O3 (I) and C22H18N2O2 (II) have been determined by single-crystal X-ray diffraction. These two compounds crystallise in the monoclinic space groups, P2(1)/c and C2/c. The structures have been determined by direct methods and refined to R, 0.041 (I) and 0.070 (II). The benzimidazole ring systems in (I) and (II) are planar. The phenyl rings attached to N1 and C2 in (I) are planar and make dihedral angles of 88.5(1) and 103.8(1)degrees with the benzimidazole ring systems. Corresponding angles in (II) are 95.0(2) and 105.1(2)degrees. (C) 1998 Elsevier Science B.V.